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Conformity Assessment Companies in Hull: 55 Active Firms (2026)
Conformity assessment companies test, inspect, calibrate and certify products, systems and sites for organisations in and around Hull.
Buying centres around Hull tend to sit with quality, engineering, operations and compliance teams rather than general procurement alone. The relevant providers sell to business customers that need defensible evidence for products, facilities, systems or industrial assets, often through repeat inspection cycles, scheduled calibration work, audit preparation and certification evidence packs. Engagements are usually mid-market and operationally specific: laboratory staff, field assessors and technical managers need documented workflows, controlled equipment records and traceable decisions that stand up to customer, insurer or regulator scrutiny.
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Hull is a small local market rather than a national TIC cluster: 55 conformity assessment companies are actively trading in and around the city. Reported headcount totals 396 employees, so the employment footprint looks concentrated in owner-managed laboratories, field inspection teams and specialist technical practices rather than large multi-site platforms. The small number of higher-turnover operators points to a market where local access, accreditation scope and turnaround discipline matter as much as scale, particularly for recurring industrial, facilities and product-evidence work.
Accreditation shapes the UK market structure. GOV.UK describes third-party accreditation as “checking the checkers”, with UKAS acting as the sole UK National Accreditation Body for organisations operating in the UK. Product conformity then sits across UKCA and CE regimes, where sector rules determine whether external assessment and marking are required. OPSS guidance adds another layer for conformity assessment bodies seeking appointment as Approved Bodies for Great Britain or UK Notified Bodies for Northern Ireland, with appointments made by the Secretary of State and listings maintained on the UK Market Conformity Assessment Bodies database.
Demand appears tied to the slow machinery of compliance rather than discretionary buying cycles. Hull's cohort looks weighted towards small technical practices, so consolidation is more likely to come through accreditation scope, sector specialism and field capacity than through broad national platform-building. Margin pressure tends to sit around assessor availability, calibration discipline, audit documentation and the cost of maintaining recognised scopes. Buyers are likely to keep favouring providers that can evidence competence, traceability and repeatable workflow without turning each job into bespoke consultancy.
55
Active firms
2026
3
Above £5M turnover
Reported turnover band
10
Incorporated since 2022
Newer Hull firms
Key facts
About 5% of the trading cohort reports turnover above £5M (3 of 55 firms) — the rest sits below that revenue band.
18% of the cohort was incorporated since 2022 (10 firms), so a sizeable share is in its first few filing cycles.
UKAS is the sole UK National Accreditation Body under the Accreditation Regulations 2009, and government only recognises UKAS accreditation for UK-operating organisations.
UKCA and CE regimes cover more than 20 product types, with sector-specific rules determining whether third-party assessment and marking are required.
Approved Bodies for Great Britain and UK Notified Bodies for Northern Ireland are appointed by the Secretary of State and listed on the UK Market Conformity Assessment Bodies database.
Forecasts put the UK testing, inspection and certification market on 3.51% CAGR to 2030 and 4.1% CAGR to 2033.
Testing is usually treated as the largest service line, while certification is commonly identified as the faster-growing service segment.
Top Hull Conformity Assessment companies
INSTCO LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides calibration, repair, servicing, and supply of test and measurement instruments. Offers electrical, electronic, mechanical, and temperature calibration, equipment sales and hire, and on-site…
Serves B2B industrial customers that use test and measurement instruments, including engineering, electrical, electronic, mechanical and temperature-control teams, with a focus on Hull, East…
Financial Health
StableStable · -7% CAGR over 2y
Location
Enertek International Limited
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsProvides ISO/IEC 17025 accredited testing, engineering design support, and certification guidance for heating, cooling, catering, hydrogen, heat pump and HIU appliances. Offers performance testing,…
Serves B2B appliance manufacturers developing heating, cooling, catering, hydrogen-ready, heat pump and heat interface unit products, particularly engineering and compliance teams needing independent…
Financial Health
DistressedDistressed · -3% CAGR over 3y
Location
Thorcal Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides calibration, repair, hire and sales of test and measurement equipment. Calibrates instruments including multimeters, pressure gauges, temperature probes, gas detectors and torque wrenches,…
Serves B2B customers with test and measurement equipment, including engineering teams in petrochemical, renewables, food production, utilities and field service operations across the UK.
Financial Health
StrongStrong · Growing, Hiring · 29% CAGR over 4y
Location
Marfleet Microbiology Ltd
Trajectory
2y · 2024–NowFinancial sub-scores
Computed from 2 filingsProvides microbiological testing services for food, cosmetics, nutraceutical, medical device and environmental samples. Conducts microbial quality assessments, preservative challenge tests, water and…
Serves B2B customers in food, nutraceuticals, cosmetics and beauty, medical devices, drinking water and environmental monitoring, including manufacturers and facilities needing compliance and quality…
Financial Health
StrongStrong · Hiring · 67% CAGR over 1y
Location
Groschtech Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsFinancial Health
StrongStrong · Growing · 0% CAGR over 2y
Location
Sparta Testing Services Ltd
Trajectory
4y · 2021–NowFinancial sub-scores
Computed from 4 filingsProvides inspection and safety testing services for the marine industry, including non‑destructive testing such as ultrasonic thickness measurement, magnetic particle and dye penetrant inspection,…
Serves B2B customers in the UK marine sector, including vessel owners, shipyards and classification societies, plus employers and contractors in industries with confined spaces or hazardous…
Financial Health
StrongStrong · Hiring · 26% CAGR over 4y
Location
Marfleet Analytical Services Limited
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsOperates an independent analytical laboratory providing testing and evaluation of materials and products for pharmaceutical, healthcare, cosmetic, food and speciality chemical sectors. Services…
Serves B2B customers in pharmaceutical, healthcare, health-food, food, cosmetics and speciality chemicals markets, including manufacturers, importers and medical device suppliers with products for…
Financial Health
WeakWeak · -5% CAGR over 4y
Location
Building Control Partnership Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides statutory building control services for construction projects, including plan assessment, regulatory compliance checks, consultation with authorities, and site inspections for domestic and…
Serves UK construction clients, including developers and contractors on major projects, housebuilders and estate developers, and domestic property owners undertaking new builds, extensions, loft…
Financial Health
WeakWeak · Hiring · 7% CAGR over 2y
Location
WEIGHTEK LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsSupplies and services industrial weighing equipment, including scales, weighbridges, laboratory balances, vehicle weighing systems and checkweighers. Provides installation, calibration, maintenance…
Serves B2B and public-sector customers across the UK and internationally, including manufacturers, food processors, chemical and energy firms, healthcare providers, laboratories, marine operators and…
Financial Health
WeakWeak · 0% CAGR over 2y
Location
Wally Mays (Contractors) Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides electrical contracting services for domestic, commercial and industrial properties. Carries out electrical testing and inspection including fixed appliance testing, periodic inspections,…
Serves domestic property portfolio holders, caravan parks, and commercial and industrial customers in Hull and East Yorkshire, including sites with vulnerable people requiring DBS-cleared contractors.
Financial Health
StableStable · -6% CAGR over 2y
Location
FTP ELECTRICAL TESTING SERVICES LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides electrical safety testing including PAT testing, fixed wire inspections (EICR), appliance testing and thermal imaging. Also delivers fire safety services such as fire alarm and extinguisher…
Serves homeowners, landlords and commercial property operators across the UK and Ireland, covering both domestic and business premises with compliance needs.
Financial Health
WeakWeak · -6% CAGR over 4y
Location
LSAS FIRE LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides fire safety services including supply and maintenance of fire extinguishers and suppression systems, fire alarm design and installation, fire risk and DSEAR assessments, emergency lighting,…
Serves businesses of all types and sizes across the UK, including commercial premises, kitchens, care homes and organisations requiring fire safety compliance, nurse call or dementia care systems.
Financial Health
WeakWeak · Hiring · 6% CAGR over 4y
Location
Price NDT Limited
Trajectory
1y · 2025–NowFinancial Health
Insufficient historyInsufficient history
Location
Halo Inspection Services Limited
Trajectory
5y · 2022–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
HealthyHealthy · 0% CAGR over 4y
Location
DS Subsea Inspection Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
HealthyHealthy · 0% CAGR over 4y
Location
Blue River Group (UK) Ltd
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides portable appliance testing (PAT) services, inspecting electrical equipment for safety and compliance in businesses, education and public sector organisations. Also offers PAT testing…
Serves UK business owners and organisations needing PAT testing, including clients across business sectors, education and local government, with engineers covering multiple regions.
Financial Health
WeakWeak · 0% CAGR over 2y
Location
The Aztech Group Ltd
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsProvides asbestos management services including asbestos removal, surveys and material sampling. Also delivers floor preparation and building repair works, including domestic and commercial insurance…
Serves homeowners, commercial property owners, insurers and loss adjusters, including clients involved in domestic and commercial insurance claims and major or complex loss cases.
Financial Health
StableStable · Hiring · 118% CAGR over 2y
Location
AVCK SERVICES LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
StrongStrong · Hiring · 19% CAGR over 4y
Location
North Star Integrity Services Limited
Trajectory
1y · 2025–NowFinancial Health
Insufficient historyInsufficient history
Location
Glen Wilson Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides design, installation and maintenance of ventilation systems for commercial and industrial buildings, including air handling maintenance, ductwork cleaning, fan repairs, fire damper testing,…
Serves local and national companies, facilities managers and building operators responsible for commercial or industrial premises with ventilation, air handling and fire-safety compliance…
Financial Health
HealthyHealthy · Hiring · 3% CAGR over 4y
Location
Elev8ed Ltd
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsFinancial Health
StableStable · Hiring · 26% CAGR over 3y
Location
Bureau Technical Services Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides technical inspection, quality assurance and quality control services for engineering and energy projects. Offers vendor auditing, fabrication surveillance, non‑destructive and mechanical…
Serves B2B clients in the global energy sector and UK engineering industry, including organisations in oil and gas, renewable energy, petrochemical and nuclear, plus engineering firms needing…
Financial Health
HealthyHealthy · -26% CAGR over 2y
Location
TEK-CAL LTD
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides on-site calibration and testing services using mobile laboratories. Calibrates and inspects measuring instruments, automotive diagnostic equipment, lifting equipment, torque, pressure and…
Serves UK businesses and public-sector organisations, including motor and truck dealers, haulage firms, crane and lift-truck operators, bodyshops, manufacturers, utilities, waste plants, local…
Financial Health
StrongStrong · Growing, Hiring · 32% CAGR over 4y
Location
Accuweigh Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsSupplies, installs, repairs and calibrates industrial and commercial weighing scales and systems. Provides servicing, preventative maintenance, certification and re‑verification of weighing…
Serves businesses and organisations across industries that use weighing equipment, including firms needing compliant calibration, certification, servicing or re-verification for ISO 9001 quality…
Financial Health
StableStable · 0% CAGR over 4y
Location
Magna Inspections Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides welding inspection and engineering services including non-destructive testing, welder qualification, welding procedure qualification, and welding quality assurance. Conducts on-site…
Serves businesses in the UK and Europe requiring welding-related compliance and quality support, including fabricators, structural welding contractors, manufacturers, and firms seeking EN 1090 or ISO…
Financial Health
HealthyHealthy · -8% CAGR over 2y
Location
Morgan Wolff Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides building control and building regulation approval services as an approved inspector. Reviews construction plans, conducts site inspections, issues regulatory certificates, and advises…
Serves client organisations and architect firms in the UK, across private and public sector building projects including education, healthcare, commercial, industrial, conservation, leisure and town…
Financial Health
HealthyHealthy · -4% CAGR over 4y
Location
M N A Group (East Yorkshire) Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides height safety systems including fall protection, guardrails, roof walkways and access ladders, with installation, inspection and recertification. Also delivers building and construction…
Serves B2B clients across the UK, particularly industrial and commercial property owners, facilities teams, construction buyers, and businesses needing height safety, roofing, cladding, building…
Financial Health
StableStable · -26% CAGR over 2y
Location
East Riding Laboratories Limited
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
StableStable · -12% CAGR over 4y
Location
STATE OF FLUX SERVICES LTD
Trajectory
2y · 2023–NowFinancial sub-scores
Computed from 2 filingsFinancial Health
StrongStrong
Location
ELECFORCE LIMITED
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsProvides electrical safety testing services including portable appliance testing (PAT), fixed installation inspection and testing, thermal imaging surveys, and electrical rectification work. Also…
Serves UK organisations and site operators needing electrical safety compliance support, including businesses with portable appliances, fixed installations, emergency lighting or fire alarm systems.
Financial Health
StableStable · -9% CAGR over 2y
Location
Independent Truck & Trailer Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides maintenance and repair services for commercial vehicles, including tachograph installation and calibration, vehicle diagnostics, brake testing, and workshop servicing. Operates an authorised…
Serves B2B commercial vehicle operators, fleet managers and motor trade customers, including single-vehicle businesses and larger HGV/PSV fleets in East Riding of Yorkshire.
Financial Health
StrongStrong · Growing · 0% CAGR over 4y
Location
Castium Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides specialist decontamination and industrial cleaning services for laboratories, cleanrooms and manufacturing facilities. Services include vapourised hydrogen peroxide biodecontamination,…
Serves B2B and public-sector organisations with controlled environments, including pharmaceutical and biotech manufacturers, research institutes, universities, healthcare providers, cell production…
Financial Health
StrongStrong · Growing, Hiring · 32% CAGR over 4y
Location
Chorley Consulting Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides toxicology consultancy for medical device manufacturers, including biological evaluation of materials and devices, ISO 10993 compliance support, toxicological risk assessments, management of…
Serves B2B medical device and materials manufacturers needing biological safety, biocompatibility and toxicological risk support for class I to class III devices.
Financial Health
DistressedDistressed · 0% CAGR over 2y
Location
BIOAPP SOLUTIONS LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides contract research and analytical laboratory services for pharmaceutical and biotechnology development, including assay development, method development and validation, and analysis supporting…
Serves pharmaceutical, biotech, CRO and clinical research organisations, particularly sponsors running discovery, nonclinical and clinical development programmes needing outsourced analytical support…
Financial Health
StrongStrong · Growing · 0% CAGR over 4y
Location
Data Facilities (Yorkshire) Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides electrical testing and contracting services, including portable appliance testing (PAT), fixed wire testing, electrical installation condition reports (EICR), load analysis and thermographic…
Serves UK businesses and facilities-sector clients, including facilities management and mechanical & electrical providers needing electrical compliance support.
Financial Health
StrongStrong · Growing · 1% CAGR over 4y
Location
PROFIRE RENEWABLES LTD
Trajectory
1y · 2025–NowFinancial Health
Insufficient historyInsufficient history
Location
SUPPLY CHAIN IN-SITES LTD
Trajectory
5y · 2022–NowFinancial sub-scores
Computed from 5 filingsProvides supply chain assurance and sustainability services, including audits, certification support, compliance monitoring, data analytics, and AI-based horizon scanning. Helps retailers, food and…
Serves B2B customers across retail, agri-food, aquaculture, forestry and horticulture supply chains, including global retailers, processors, farmers and suppliers with compliance and sustainability…
Financial Health
StableStable · Hiring · 14% CAGR over 4y
Location
CS INSPECTION LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
StrongStrong · Growing, Hiring · 11% CAGR over 4y
Location
Vision4Food Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
StableStable · 0% CAGR over 4y
Location
JJO Inspection Services Limited
Trajectory
2y · 2024–NowFinancial sub-scores
Computed from 2 filingsFinancial Health
StableStable · 0% CAGR over 1y
Location
AAShip'tec Limited
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
StableStable · 0% CAGR over 4y
Location
Eden Change Consultancy Limited
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsFinancial Health
DistressedDistressed
Location
Aspect (Hull) Ltd
Trajectory
4y · 2021–NowFinancial sub-scores
Computed from 4 filingsProvides land and hydrographic surveying services, including hydrographic, geophysical and oceanographic surveys, topographic and measured building surveys, utility mapping, LiDAR mapping, UAV…
Serves businesses and public-sector bodies needing land, coastal and marine survey data, including offshore renewables, oil and gas, ports and harbours, utilities, pipeline and cable route operators,…
Financial Health
StrongStrong · Growing, Hiring · 41% CAGR over 4y
Location
PRODAR SURVEYS LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides underground utility and land surveying services, including utility mapping, cable and pipe detection, ground penetrating radar (GPR) surveys, subsurface anomaly detection, topographic land…
Serves construction consultants, contractors and local authorities, with customers in infrastructure, utilities, education, retail, commercial property, industrial sites, healthcare, hospitality,…
Financial Health
WeakWeak · -7% CAGR over 2y
Location
POWER SONIC LIMITED
Trajectory
5y · 2022–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
WeakWeak · Hiring · 6% CAGR over 4y
Location
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How Hull Conformity Assessment companies work and how to sell to them
What they do
Revenue usually comes from repeat technical service work rather than one-off advisory projects. Hull conformity assessment providers tend to charge per inspection visit, test batch, calibration item, audit day, certificate cycle or evidence pack, with recurring income tied to scheduled checks and renewal windows. The service shape is operational: laboratory testing, field inspection, equipment calibration, management-system assessment and certification support. Pricing is often anchored to scope, risk, turnaround time and the competence required from assessors or technical signatories. Smaller jobs may be transactional, but the more attractive accounts are repeat programmes where the provider becomes part of the customer’s compliance calendar.
Who they sell to
Most customers are business buyers with products, facilities, systems or assets that need external evidence of safety, quality or performance. The day-to-day sponsor is usually a quality manager, engineering manager, operations lead, compliance head or technical director, with procurement involved once repeat spend or framework status is in play. Smaller purchases can move through direct sales, referrals and account renewal conversations; larger or more regulated engagements tend to involve supplier approval, accreditation checks, insurance requirements and formal tendering. Sales cycles are often practical rather than theatrical: buyers need scope fit, assessor availability, turnaround certainty and audit-ready documentation.
What they buy
Most Hull conformity assessment firms tend to spend on tools and services that protect traceability, utilisation and audit readiness. Relevant categories include quality management software, document control, calibration management, laboratory workflow systems, field-service scheduling, competence and training records, CRM, quoting, billing and customer portals. They may also buy cybersecurity, cloud storage, finance support, insurance advice, legal help on terms and liability, recruitment for technical staff, and marketing that reaches quality or engineering buyers rather than broad consumer audiences. Physical spend can include laboratory equipment, metrology kit, vehicles for field teams and facilities suited to controlled testing or sample handling.
Why and how to sell to them
Commercial intent often appears when a provider adds a service scope, moves beyond founder-led job control, hires assessors, prepares for accreditation activity or takes on a customer with repeat evidence requirements. Common pain points are assessor utilisation, missed calibration dates, inconsistent documentation, manual certificate production, slow quote turnaround and rework after internal or external audits. Outbound works better when it is tied to these operating pressures rather than generic efficiency claims. A credible angle is to show how the offer preserves traceable decisions, reduces administrative drag around repeat inspections, or helps technical managers evidence competence without weakening control over quality records.
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.
Also in Hull
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Frequently asked questions
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