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B2B Companies in Southampton: 1,438 Active Firms (2026)
B2B companies in Southampton sell products and services to other organisations across the city and its surrounding metropolitan area.
Buying centres tend to sit in operations, procurement, finance, IT and specialist service lines rather than consumer marketing teams. The more relevant sellers are mid-market and larger SME suppliers with repeat organisational customers: outsourced services, trade supply, technical support, professional services, platforms and equipment-led propositions. Sales cycles are typically procurement-led, with proof of compliance, service capacity and account management carrying more weight than brand reach. Public-sector and institutional customers also appear in the addressable base, so contracts may involve frameworks, insurance checks, information-governance reviews and documented terms rather than low-touch checkout flows.
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Southampton has 1,438 actively trading business-to-business companies in this cohort, making it a local market with breadth beyond a narrow niche list. Reported employment totals 5,966 people across the firms with stated headcount, which gives the page a clearer operating-company bias than a purely incorporation-led view. At the upper-revenue end, 162 firms are above £5M turnover, while 60 were incorporated since 2022. That mix points to a city-market with many established suppliers and a thinner layer of recent entrants.
Business-to-business activity in the UK is regulated through the activity being carried out, not via a sector-wide licence. Financial services, telecoms, data processing and professional services can therefore bring different permissions, conduct rules and audit expectations into otherwise similar sales organisations. Marketing compliance is a particular point for Southampton suppliers using outbound channels. The ICO says PECR covers direct marketing by live calls, automated calls, electronic mail and fax; messages to corporate subscribers do not need PECR consent, but senders must identify themselves and provide a valid opt-out route. UK GDPR still applies where business-contact personal data is processed, and live calling requires screening against preference-register objections.
Southampton's business-to-business base appears more exposed to procurement discipline than to consumer sentiment, so the next phase is likely to favour suppliers that can document compliance, service delivery and account ownership. Many operators appear to sit below national scale, which may keep acquisition targets in view for trade buyers and regional consolidators. New entrants are present, but the cohort looks weighted toward established commercial relationships. Margin pressure, buyer scrutiny and marketing-permission rules are likely to make retention and upsell capability more important than high-volume prospecting.
1,438
Active firms
2026
162
Above £5M
turnover threshold
60
Newer incorporations
incorporated since 2022
Key facts
About 11% of the trading cohort reports turnover above £5M (162 of 1,438 firms) — the rest sits below that revenue band.
4% of the cohort was incorporated since 2022 (60 firms), so a sizeable share is in its first few filing cycles.
B2B is not a single licensed industry in the UK; regulation depends on the underlying activity, such as financial services, telecoms, data processing or professional services.
The ICO says PECR covers direct marketing by live or automated calls, electronic mail and fax.
The ICO says the PECR electronic-mail rule does not apply to corporate subscribers, but senders must not conceal their identity and must provide a valid opt-out address.
UK GDPR still applies where personal data is processed, including business-contact data.
ONS reported 2.73 million VAT and/or PAYE businesses as of March 2025, up 0.4% from March 2024.
Top Southampton B2B companies
DAVIES INTERNATIONAL TRANSPORT LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides national and international road transport and logistics services including temperature‑controlled, ambient and ADR cargo delivery. Operates GDP-compliant warehousing and storage, and manages…
Serves B2B clients in the food, pharmaceutical and cruise logistics sectors, plus shippers of hazardous, high-value, electronics and temperature-sensitive goods across the UK and Europe.
Financial Health
HealthyHealthy · -69% CAGR over 4y
Location
CRITICAL SOFTWARE LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides software engineering and IT consultancy for safety‑ and mission‑critical systems. Services include systems and software development, verification and validation, testing, cybersecurity, AI…
Serves enterprise and public-sector organisations in safety-, mission- and business-critical sectors, including aviation, automotive, defence, energy, finance, government, insurance, medical devices,…
Financial Health
WeakWeak · -6% CAGR over 4y
Location
SOLENT TRANSPORT SERVICES LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides road-based container freight transport and logistics services, moving shipping containers between ports, shipping lines and customers. Operates a fleet of haulage vehicles to handle…
Serves B2B customers in container logistics, including major UK ports, shipping lines and businesses needing nationwide road-based container haulage or specialist haulage support across the UK.
Financial Health
StrongStrong · Growing, Hiring · 6% CAGR over 2y
Location
CHANGEREGARD LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides civil engineering and groundworks contracting services, including earthworks, foundations, reinforced concrete frames and basements, drainage and sewer installation, roads and surfacing,…
Serves national housing developers and property development clients across the south coast, including Hampshire, Dorset, Wiltshire, Berkshire, Surrey and Sussex.
Financial Health
HealthyHealthy · -68% CAGR over 4y
Location
PAUL MURRAY PLC
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsSupplies and distributes health, beauty, baby and household products to retailers. Offers branded and own‑label items including hair accessories, skincare, grooming, pharmacy and nursery products,…
Sells B2B to retail trade buyers in the health, beauty and nursery sectors, primarily across the UK and Ireland, and also internationally. Serves retailers needing branded or private-label product…
Financial Health
StableStable · Profitable · -3% CAGR over 2y
Location
WESSEX CLEANING EQUIPMENT AND JANITORIAL SUPPLIES LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsSupplies cleaning and hygiene equipment and janitorial products to businesses, including cleaning machines, consumables and eco‑labelled ranges. Provides machine sales, hire, spare parts,…
Serves UK businesses in the cleaning and facilities sectors, including commercial cleaning contractors, support service providers and organisations managing janitorial supplies across single-site and…
Financial Health
HealthyHealthy · -63% CAGR over 4y
Location
SM5 Developments Ltd
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides construction services including new build, interior fit‑out and refurbishment projects. Manages planning and delivery of commercial spaces for sectors such as education, offices, industrial…
Serves organisations and commercial clients in education, offices, industrial, healthcare, leisure and retail, and automotive sectors requiring construction, fit-out or refurbishment projects.
Financial Health
StrongStrong · Growing, Hiring · 44% CAGR over 4y
Location
DAISH TRANSPORT LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides container logistics services including container transport, storage, warehousing and distribution. Handles hazardous and temperature‑sensitive cargo and arranges cargo insurance to support…
Serves B2B shippers, importers and exporters needing container logistics support, including businesses moving hazardous, perishable or general cargo through Southampton Port.
Financial Health
StrongStrong · Growing, Hiring · 65% CAGR over 4y
Location
WAINWRIGHT BROTHERS & COMPANY LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides ship and port agency services for shipowners, charterers and superyacht captains, including vessel port call coordination, customs and documentation handling, freight forwarding, container…
Serves shipowners, charterers, superyacht captains, and import/export businesses using Southampton and other UK ports, plus individuals shipping automobiles or containers.
Financial Health
WeakWeak · -4% CAGR over 4y
Location
GEMINI ROOFING & CLADDING LIMITED
Trajectory
5y · 2022–NowFinancial sub-scores
Computed from 5 filingsProvides roofing and cladding services for commercial, industrial and agricultural buildings, including cladding replacement, over‑cladding of existing roofs and walls, guttering, roof lighting…
Serves main contractors and direct clients responsible for commercial, industrial and agricultural buildings across the UK, including warehouses and other existing or new-build sites.
Financial Health
StrongStrong · Growing, Hiring · 28% CAGR over 4y
Location
YO TELECOM LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides business telecommunications and IT services including VoIP phone systems, business mobiles, broadband and Wi‑Fi, call recording and management software, computer telephony integration, and…
Serves UK businesses, particularly SMEs and multi-site operators in dental, hospitality, medical, veterinary, care homes, opticians, hotels, estate agencies and nurseries.
Financial Health
StrongStrong · Growing, Hiring · 7% CAGR over 4y
Location
CITY CLEANING (UK) LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides commercial cleaning and facilities services including office cleaning, window cleaning, washroom hygiene, property and estate cleaning, and maintenance of retail outlets, industrial…
Serves commercial and public-sector organisations, including offices, retail outlets, property managers, industrial buildings, leisure centres, social housing providers, schools and colleges around…
Financial Health
StableStable · Hiring · 5% CAGR over 4y
Location
WHA SHOPFITTING LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides shopfitting and interior fit-out services for retail and leisure businesses, including refurbishment of retail units and construction of new stores. Manages projects from initial concept and…
Serves B2B retail and leisure clients across the UK and Europe, from small retail unit refurbishments to large store fit-outs over 30,000 sq ft, including brands opening or upgrading outlets.
Financial Health
StrongStrong · -2% CAGR over 4y
Location
ADS Recruitment Ltd
Trajectory
5y · 2019–NowFinancial sub-scores
Computed from 5 filingsProvides recruitment and staffing services for industrial, manufacturing, commercial and driving sectors. Sources and places temporary and permanent workers, manages job listings and candidate…
Serves B2B employers in industrial, manufacturing, driving and commercial sectors needing temporary or permanent staff, alongside jobseekers seeking roles in those categories.
Financial Health
HealthyHealthy · Hiring · 11% CAGR over 5y
Location
Consortio RG Ltd
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides specialist recruitment services for maritime and shipping, oil and gas, ports and terminals, construction, cyber security, logistics, and related sectors, connecting employers with…
Serves employers and jobseekers in specialist sectors including maritime and shipping, oil and gas, renewables, construction, logistics, cyber security, cruise and superyacht, ports and terminals,…
Financial Health
StrongStrong · Growing, Hiring · 7% CAGR over 4y
Location
ETCH (UK) LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides digital customer experience consultancy for established businesses, combining service design, data analysis and technology development to modernise legacy systems, improve customer…
Serves established UK businesses and mature organisations with legacy technology environments, particularly those facing slowing customer growth, weaker engagement, declining profitability, or…
Financial Health
StableStable · -71% CAGR over 4y
Location
IDAD LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDevelops and distributes structured investment products and structured deposits for financial advisers and investment professionals. Designs products combining capital protection with market‑linked…
Serves UK investment advisers, wealth managers and financial professionals supporting retail or private clients with defined capital-protection and risk-return requirements.
Financial Health
HealthyHealthy · -66% CAGR over 4y
Location
TNG CONSULTING ENGINEERS LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides building services engineering design and consultancy, specialising in mechanical and electrical systems for commercial, education, healthcare, residential and public sector projects,…
Serves commercial, education, emergency services, healthcare, leisure and residential project clients, including public sector bodies, developers, project managers and wider construction design teams…
Financial Health
StableStable · Hiring · 5% CAGR over 4y
Location
WHA ELECTRICAL SERVICES LIMITED
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides electrical contracting services for commercial, retail and industrial premises, including new-build and refurbishment electrical installations, fire alarm installation and reconfiguration,…
Serves B2B clients in the retail, commercial and industrial sectors, including organisations managing premises, refurbishments, new builds, inspections and multi-store rollout projects across the UK…
Financial Health
StableStable · -13% CAGR over 4y
Location
OPTIMUS FLOWERS LIMITED
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsImports and wholesales fresh cut flowers and foliage sourced from international growers, including roses, carnations, hydrangeas and seasonal varieties. Supplies wholesalers, bouquet packers and…
Serves B2B flower wholesalers, multiple packers and online flower businesses, primarily across the UK, with additional customers in Europe and other international markets.
Financial Health
WeakWeak · -59% CAGR over 5y
Location
NOYCE INSURANCE SOLUTIONS LIMITED
Trajectory
5y · 2022–NowFinancial sub-scores
Computed from 5 filingsArranges business insurance policies, providing quotes and advice on cover including asset, cyber, employee, liability, motor vehicle and revenue protection. Works with multiple insurers to place…
Serves businesses in the South of England with complex insurance needs, including aviation, charity, construction, digital, engineering, leisure, manufacturing, marine, media, motor trade,…
Financial Health
StableStable · -70% CAGR over 4y
Location
PREMIER DIAMOND PRODUCTS LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsSupplies diamond blades, diamond core drills, grinding tools, power tool accessories, and cutting and drilling equipment for construction materials. Distributes products to tool retailers, hire…
Sells B2B to tool shops, online retailers, tool hire companies, fixings suppliers, building and plumbing merchants, electrical wholesalers, and private-label wholesalers across the UK and Europe.
Financial Health
HealthyHealthy · -67% CAGR over 4y
Location
ELMTREE SIGNS LIMITED
Trajectory
5y · 2022–NowFinancial sub-scores
Computed from 5 filingsDesigns, manufactures and installs commercial signage, including external and internal signs, wayfinding systems, vehicle graphics, illuminated and safety signage, point‑of‑sale displays, and digital…
Serves B2B customers across the UK, from small local firms to large national businesses, including retailers, property developers, co-working space operators, construction firms and trade clients.
Financial Health
WeakWeak · -69% CAGR over 4y
Location
Workforce Resourcing Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides recruitment and staffing services for hospitality, security, cleaning and construction sectors. Supplies temporary workers, offers 24/7 staffing support, training courses and workforce…
Serves B2B employers in hospitality, security, cleaning and construction that need staffed shifts, short-notice cover or ongoing recruitment support, with services promoted across the UK and Europe.
Financial Health
HealthyHealthy · -9% CAGR over 2y
Location
Danson Electrical UK Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsSupplies low‑voltage electrical distribution and circuit protection equipment, including consumer units, fuse boxes, distribution boards, MCBs, RCBOs, RCDs, surge protection devices, rotary isolator…
Sells mainly to electrical contractors, installers and trade buyers handling domestic, commercial and industrial projects, with support for account customers and technical specifiers.
Financial Health
StrongStrong · Hiring · 22% CAGR over 2y
Location
HOLTON CREST LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDesigns and manufactures continuous rotary extrusion (CRE) machinery and systems used to process copper, aluminium and brass. Provides extrusion equipment, tooling configurations and technical…
Sells to global industrial manufacturers using copper, aluminium and brass extrusion in demanding production environments, especially buyers of continuous rotary extrusion systems for critical…
Financial Health
HealthyHealthy · -66% CAGR over 4y
Location
BAS Property Consultants Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides chartered surveying and property consultancy services including building surveys, defect inspections, dilapidations and party wall advice, project monitoring, quantity surveying,…
Serves property owners, developers, investors, occupiers and project teams needing surveying, architecture and safety advice. Sells mainly B2B to commercial property clients, with some support for…
Financial Health
StrongStrong · Growing, Hiring · 14% CAGR over 4y
Location
ACTIVE FLOW CONTROLS LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDesigns and manufactures gas control and measurement equipment for the gas industry, including pressure reduction stations, metering stations, filters, regulators, valves and skid-mounted modules.…
Serves B2B customers in the UK gas industry, including gas transmission and distribution operators, industrial and commercial contractors, utilities, and SMEs needing gas control and metering…
Financial Health
HealthyHealthy · Hiring · 10% CAGR over 4y
Location
SHENTON GLOBAL LIMITED
Trajectory
4y · 2023–NowFinancial sub-scores
Computed from 4 filingsProvides backup power and energy resilience solutions, including generator rental, standby and prime generators, uninterruptible power supplies (UPS), and combined heat and power systems. Offers…
Serves organisations needing resilient power, including financial and commercial firms, healthcare providers, data centres and telecoms, manufacturers, retailers, education bodies, government/MOD,…
Financial Health
HealthyHealthy · -78% CAGR over 3y
Location
W.T.W. TRUCK HIRE LIMITED
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides commercial vehicle and car hire, including vans, pickups, minibuses, 7.5‑ton trucks, HGVs, crane vehicles and other specialist vehicles. Offers short‑ and long‑term rental and fleet…
Serves B2B and public sector customers, including highways contractors, refinery and petrochemical operators, ports, facilities management firms, local authorities and local contractors.
Financial Health
HealthyHealthy · Hiring · 3% CAGR over 4y
Location
Mabway Limited
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides military training support including live simulation and special effects for exercises, along with manpower provision, logistics support, communications services, and systems engineering for…
Sells primarily to defence and military organisations, government and public sector bodies, and also serves health, nuclear, energy, space, public safety, manufacturing, agriculture and transport…
Financial Health
HealthyHealthy · Profitable · 0% CAGR over 4y
Location
Nine23 Limited
Trajectory
2y · 2024–NowFinancial sub-scores
Computed from 2 filingsProvides high‑assurance managed IT services including cybersecurity advisory, risk assessment, private and hybrid cloud platforms, secure collaboration tools, and managed service integration for…
Serves UK public sector and B2B customers in HM Government, defence, national security, public safety, regulated sectors and their supply chains handling protectively marked data above OFFICIAL.
Financial Health
WeakWeak · Hiring · 26% CAGR over 1y
Location
Earlcoate Construction & Plant Hire Ltd
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides civil engineering and coastal defence contracting services, including infrastructure works, drainage, foundations, harbour and river works, flood protection, seawalls, and environmental…
Serves public-sector and commercial clients needing civil engineering and coastal/river defence, including airports, ports, harbours, marinas, transport hubs, waste facilities and renewable energy…
Financial Health
StrongStrong · Hiring · 20% CAGR over 2y
Location
ETA-Connect Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides engineering consultancy, project management, and specialist equipment for subsea cable projects. Designs and supplies installation, burial, and handling systems, cable accessories, and…
Serves B2B marine and subsea cable markets, including energy and telecom system owners, suppliers, installers, developers and contractors in power, tidal, offshore wind, oil and gas, and telecoms.
Financial Health
StrongStrong · Growing, Hiring · 11% CAGR over 4y
Location
ARLINGTON FLEET SERVICES LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides maintenance, overhaul and heavy repair services for railway rolling stock. Activities include bogie and wheelset overhaul, vehicle renovation and repurposing, paint finishing, workshop…
Sells to rail industry organisations needing rolling stock maintenance, overhaul, repair and stabling services, including train operators, fleet owners and other businesses managing railway vehicles.
Financial Health
HealthyHealthy · -91% CAGR over 2y
Location
CCS TAD LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides compliance and energy services for social housing landlords, including heating servicing and replacement, electrical testing, renewable energy installations, retrofit and whole-house energy…
Serves UK social housing landlords, including housing associations, local authorities and registered providers managing residential portfolios and procuring compliance, retrofit, heating and…
Financial Health
StableStable · Hiring · 32% CAGR over 2y
Location
ARB DEVELOPMENT PROJECTS LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDesigns, supplies and installs mechanical building services for commercial and public sector projects. Services include heating, ventilation and air conditioning (HVAC), hot and cold water systems,…
Serves construction contractors, NHS trusts, local authorities, hotels, schools, leisure facilities, care settings and commercial property owners needing mechanical building services projects via…
Financial Health
StableStable · -68% CAGR over 4y
Location
BIOPHARMA PROCESS SYSTEMS LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsSupplies specialist equipment for pharmaceutical, biotechnology, food and process industries, including freeze dryers, bioreactors, solvent evaporators, homogenisers, aseptic fill‑finish systems and…
Serves B2B customers in pharmaceutical, biotech, food production and general process industries across the UK and Ireland, including laboratories, manufacturers, research organisations and technical…
Financial Health
WeakWeak · -2% CAGR over 2y
Location
VES Andover Ltd
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsDesigns, manufactures and installs commercial HVAC and ventilation systems, including air handling units, heat recovery ventilation products, utility fans and air barriers, and provides…
Serves UK public-sector and commercial building operators, including schools, healthcare facilities, local authorities, supermarkets, pools, industrial sites and blue-chip companies.
Financial Health
HealthyHealthy · Hiring · 6% CAGR over 2y
Location
ASPIN MANAGEMENT SYSTEMS LIMITED
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsDevelops B2B sales software for brands and distributors, including a field sales order‑taking app, B2B ecommerce portals, and product information and digital asset management systems, with tools to…
Serves B2B brands, wholesalers and distributors that sell through field sales reps and trade ecommerce, particularly businesses with sales teams, customer portals and ERP-linked product data…
Financial Health
StableStable · Hiring · 4% CAGR over 4y
Location
Chrome Telecom Limited
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides business telecommunications and IT services, including cloud phone systems, business mobiles, network connectivity, managed IT support, cyber security monitoring, CCTV integrations, and…
Sells to UK businesses, especially SMEs, with sector focus on care homes, dental and medical practices, estate agents, logistics firms, garages, hospitality venues, vets, education providers and…
Financial Health
StrongStrong · Growing, Hiring · 17% CAGR over 5y
Location
EFRET LIMITED
Trajectory
2y · 2024–NowFinancial sub-scores
Computed from 2 filingsProvides international freight and logistics services including European road transport using mega trailers and express vans, customs clearance brokerage, air freight, and intermodal transport for…
Serves B2B shippers across Europe, the UK and Morocco, including e-commerce retailers, automotive manufacturers and suppliers, packaging companies, and industrial, manufacturing and FMCG businesses.
Financial Health
StableStable · Profitable · -7% CAGR over 1y
Location
K A WATTS PLUMBING & HEATING LIMITED
Trajectory
2y · 2024–NowFinancial sub-scores
Computed from 2 filingsProvides plumbing, heating, mechanical and electrical installation services for residential developments and commercial projects. Offers design, consultancy, project management, renewable energy…
Sells primarily B2B to major UK home builders and residential developers, plus commercial organisations needing mechanical and electrical systems. Also serves homeowners through home aftercare…
Financial Health
HealthyHealthy · Profitable · -5% CAGR over 1y
Location
HYTHE ENGINEERING LIMITED
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides precision engineering services including fabrication, welding, pipefitting and turnkey engineering projects. Works on shipbuilding, maintenance and industrial systems for defence, nuclear…
Serves large UK defence, nuclear and renewable-energy contractors, including shipbuilding, maritime, infrastructure and facility engineering teams needing specialist engineering support.
Financial Health
StableStable · Hiring · 25% CAGR over 4y
Location
CAPCOM LAND SEA AND AIR COMMUNICATIONS LIMITED
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsSupplies and supports professional two-way radio communication systems, including handheld and vehicle radios, repeaters, paging equipment and accessories. Provides system design, equipment hire,…
Serves blue-chip companies and public sector organisations in the UK and overseas, including transport, maritime, armed forces, sports clubs, hospitals, education, pharmaceutical, retail and…
Financial Health
HealthyHealthy · Growing · 0% CAGR over 2y
Location
Vissensa Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides managed IT services including technical support, cybersecurity, Microsoft cloud solutions, connectivity, business telephony, and business continuity services. Delivers IT consulting and…
Serves UK businesses and charities of varying sizes, especially in distribution and logistics, financial services, energy and media, with area pages for Hampshire, London, Surrey and nearby southern…
Financial Health
StrongStrong · Growing, Hiring · 12% CAGR over 4y
Location
I P L Haulage Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides container haulage and general freight transport services. Operates a fleet of lorries moving containerised goods between major UK ports and depots, delivering cargo nationwide and across…
Serves B2B customers including large and small companies needing container movement, major global shipping lines and international freight forwarders using UK ports, with UK and European logistics…
Financial Health
StableStable · -4% CAGR over 4y
Location
A-2-Sea Solutions Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides submarine fibre‑optic cable services including shallow‑water installation, shore‑end and land cable works, and route clearance. Conducts hydrographic and geophysical surveys, maintains and…
Serves B2B customers in the global subsea cable market, including telecommunications cable owners and manufacturers, offshore wind developers, and organisations with submarine, shore-end or…
Financial Health
HealthyHealthy · Profitable, Hiring · 5% CAGR over 3y
Location
D R GROUNDWORKS LTD
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsProvides building and civil engineering contracting services focused on residential groundworks. Undertakes earthworks, ground stabilisation, foundation installation, and highway infrastructure works…
Serves major housebuilders, housing developers, construction contractors, and local authorities involved in residential schemes and highway infrastructure across the south and southwest of England.
Financial Health
WeakWeak · -7% CAGR over 2y
Location
WARRENS OFFICE LTD
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsSupplies office products and workplace consumables to businesses, including stationery, paper, janitorial and breakroom supplies. Also provides office furniture, printed goods, workwear, and archive…
Serves UK businesses and organisations seeking office procurement support, including teams managing supplies, facilities, print, workwear and sustainable supply chains; also addresses law firms and…
Financial Health
StableStable · -17% CAGR over 2y
Location
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How Southampton B2B companies work and how to sell to them
What they do
Revenue is usually earned through contracted supply rather than consumer-style conversion: monthly retainers, annual service agreements, licence fees, usage-based platform charges, project fees and catalogue pricing for repeat trade customers. Southampton B2B firms may sell professional services, technical support, equipment, outsourced operations or software-enabled workflows, often with service-level terms and named account ownership. Engagement value tends to depend on risk, continuity and integration effort. Low-friction purchases exist for consumables and standard services, but the more attractive accounts are usually those with recurring delivery, renewal dates and room for account expansion.
Who they sell to
Buyers are usually operational rather than consumer-marketing personas: operations directors, procurement managers, finance leaders, IT heads, facilities managers and heads of service. Most suppliers will face a mix of larger SMEs, mid-market companies, enterprise sites, public-sector bodies and institutions, with buying handled through direct sales, preferred-supplier lists, partner referrals or formal tenders. Smaller transactions may close on standard terms, while higher-risk work tends to require insurance evidence, information-security answers, references, credit checks and negotiated service terms. Sales cycles therefore lengthen when the purchase touches regulated activity, public money or business-critical processes.
What they buy
Spend tends to concentrate on systems that make pipeline, delivery and compliance easier to evidence. Common categories include CRM, sales engagement, quoting, billing, accounting, cash collection, HR, payroll, recruitment, workflow management, reporting, cyber security, identity management, device management and cloud hosting. Service spend often sits around legal support, audit, tax, insurance, bid writing, outsourced finance, marketing operations and specialist recruitment. Firms with field teams or equipment-led offers may also buy scheduling, asset tracking, fleet support, health-and-safety training and maintenance planning. The practical test is whether a purchase reduces cost-to-serve or makes procurement approval easier.
Why and how to sell to them
Buying intent often appears when a firm wins a larger contract, joins a framework, hires senior sales or finance leadership, expands account management, changes ownership or prepares for an audit. Southampton B2B buyers tend to respond to evidence that a supplier can shorten tender response time, improve renewal discipline, reduce manual admin, protect margins or make ICO, PECR and UK GDPR obligations easier to manage. Outbound messaging should be specific to the buying centre: finance cares about leakage and cash timing, operations about delivery control, IT about risk, and procurement about assurance and terms.
How this list is built
Data sources
This list is built from UK Companies House filings, XBRL accounts data, and semantic analysis of each company's public website. Revenue and headcount figures come from the most recent filed accounts; where the company has not filed, values are estimated using a model trained on filed history and peer benchmarks and are labelled as estimates.
Classification
Rather than relying solely on SIC codes, Firmbase classifies each company semantically: the company's website is crawled, an AI model reads what the company actually sells, and the company is placed into the relevant industry and subsectors. SIC codes are used as one signal but not the only one. This means a company that registered under a generic SIC code but pivoted into (for example) fintech is correctly identified as fintech, not as its original SIC category.
Freshness
The underlying company data is refreshed from Companies House continuously; filings appear in the list within days of submission. The curated list ordering is regenerated when the underlying data moves meaningfully (company count changes by more than 5%, a new company enters the top-ranked segment, or the filed-revenue numbers for the top firms change). You can see the last-updated timestamp near the top of the page.
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Frequently asked questions
How many B2B companies are there in Southampton?
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