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Startup Companies in London: 1,100+ Active Firms (2026)
Startup companies in London build early-stage, scalable products or services across sectors, centred on the capital's venture ecosystem.
Across London, commercial demand tends to sit around revenue and finance teams looking for faster sales, payments or reporting workflows; product and engineering teams buying developer, automation and infrastructure tools; and regulated operating teams in finance, health, energy, aviation or legal services. Buyers range from SME departments testing a focused tool to public-sector or enterprise teams funding pilots before wider procurement. Engagements are usually modular rather than estate-wide at the outset: paid trials, annual subscriptions, usage-based contracts and service-wrapped deployments that need a clear route from founder-led selling to repeatable account expansion.
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London has 1,173 actively trading startup-tagged companies in this cohort, giving the capital a sizeable but still selective slice of the early-company market rather than a proxy for every newly formed business. Reported headcount totals 1,207 people, which points to a list weighted towards founder-led and early-commercial employers rather than mature operating groups. The shape matters for researchers: revenue-ranked shortlists will surface only a small mature tail, while most firms are better assessed through product evidence, hiring cadence, customer type and whether the business model can move beyond bespoke project work.
Startup status does not create a separate regulatory perimeter; it is a lifecycle and size label overlaid on ordinary company administration. Incorporated businesses still deal with Companies House filings, including confirmation statements, and identity checks may be required before filings can be made. Permissions then depend on the activity rather than the label. Financial-services, energy-supply, aviation, healthcare and legal-service models carry their own authorisation and conduct requirements, so a London startup selling into those markets faces the same permissioning questions as a more mature operator.
The cohort appears likely to remain fragmented, with many businesses sitting between prototype, paid pilot and repeatable sales. London’s advantage is less about any particular subsector than the concentration of customers, advisers, funders and specialist labour that lets founders test regulated and unregulated models in close proximity. Scale-up scarcity may persist where products need long enterprise procurement cycles or formal permissions before revenue can compound. Consolidation tends to come later, once a category has clearer budgets and acquirers can distinguish durable usage from short-lived experimentation.
1,173
Active firms
2026
326
Recent incorporations
Since 2022
16
Above £5M turnover
Reported turnover
Key facts
About 1% of the trading cohort reports turnover above £5M (16 of 1,173 firms) — the rest sits below that revenue band.
27% of the cohort was incorporated since 2022 (326 firms), so a sizeable share is in its first few filing cycles.
Startup is a lifecycle and size tag rather than a separate UK regulatory category, so sector permissions still apply in regulated financial services, energy supply, aviation, healthcare and legal activities.
Most incorporated startups still sit within Companies House administration, including confirmation statement filing and identity-verification checks for some filers.
The UK had 5.5 million private-sector businesses at the start of 2024, with SMEs accounting for 99.8% of that population.
ONS reported 2.725 million UK businesses registered for VAT and/or PAYE as of March 2024, down 0.1% from March 2023.
London was ranked joint #2 globally with New York City in 2024, behind Silicon Valley.
Top London startup companies
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides embedded finance APIs and infrastructure enabling developers and businesses to build financial products such as savings accounts, deposits, cards, lending products and B2B payment systems,…
Serves B2B customers including fintechs, banks, consumer brands and digital platforms, targeting developer and product teams building embedded banking, lending, payments and credit products.
Financial Health
WeakWeak
Location
COUNT TECHNOLOGIES LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDevelops a cloud-based analytics platform that connects to databases and business tools, enabling teams to query data with AI, build metric trees and dashboards, perform collaborative analysis, and…
Sells to B2B data, analytics and business teams at organisations that need collaborative BI across data warehouses, semantic layers, spreadsheets and SaaS tools.
Financial Health
StrongStrong · Growing, Hiring · 24% CAGR over 4y
Location
ZINT TECHNOLOGY LIMITED
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsDevelops sales intelligence and prospecting software that analyses UK company data and annual reports to identify potential customers. Provides CRM integrations, predictive scoring, trigger alerts,…
Sells to B2B sales and revenue teams, including SDRs, account managers and data leaders, particularly in foreign exchange, logistics, banking, energy, insurance, recruitment and R&D tax advisory…
Financial Health
StrongStrong · Growing, Hiring · 38% CAGR over 5y
Location
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDevelops cloud‑native software-as-a-service for wealth managers, providing modular middle- and back‑office systems, APIs, automated workflows, and integration tools used to build, launch, and operate…
Sells to wealth management firms, pension providers and financial institutions launching or modernising digital wealth products, especially product, technology and operations teams.
Financial Health
StrongStrong · Growing, Hiring · 38% CAGR over 3y
Location
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides a digital platform for employment and income verification. Uses integrations with HMRC, payroll systems, Open Banking and other data sources to deliver verified work history and earnings…
Serves B2B customers that need employment and income checks, including background screening providers, recruiters, employers, tenant referencing providers and financial services firms.
Financial Health
StableStable · Hiring · 47% CAGR over 2y
Location
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsProvides an online platform for creating and managing investment vehicles such as SPVs and venture funds. Offers fund structuring, capital calls, investor onboarding, legal and tax documentation,…
Serves B2B private market participants: founders raising capital, angel syndicate leads, and fund managers/VC firms that pool investments and manage investors, including users collecting capital…
Financial Health
StrongStrong · Hiring · 47% CAGR over 2y
Location
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsDevelops carbon management software that helps businesses measure and manage greenhouse gas emissions across operations and supply chains. Platform provides carbon footprint calculations, product…
Serves growing businesses and corporate sustainability, ESG and operations teams needing emissions management, product footprinting and disclosure support across operations and supply chains.
Financial Health
StableStable · Hiring · 65% CAGR over 3y
Location
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsDevelops a no-code software platform that enables businesses to build and run custom web applications such as CRMs, internal tools, workflow systems and customer portals, using spreadsheet or…
Serves business teams and enterprises worldwide, including operations, programme management, CRM and customer portal owners needing tailored internal, customer and partner applications.
Financial Health
StrongStrong · Growing, Hiring · 8% CAGR over 4y
Location
FENNECH FINANCIAL LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDevelops a treasury and finance software platform that aggregates bank accounts, payments and liquidity data, providing real-time cash visibility, payment processing, reconciliation automation and…
Serves corporates with global finance and treasury teams, fintechs embedding finance products, and banks modernising corporate and transaction banking services.
Financial Health
StrongStrong · Hiring · 32% CAGR over 4y
Location
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides software and managed services for global indirect tax compliance. Platform automates sales tax, VAT and GST registration, calculation, filing and remittance, integrating with e‑commerce and…
Serves B2B eCommerce, SaaS, tech and marketplace businesses, including Shopify-led brands and global companies, with founders, CFOs, accountants and operators as key buyers.
Financial Health
StrongStrong · Hiring · 134% CAGR over 2y
Location
Trajectory
5y · 2023–NowFinancial sub-scores
Computed from 5 filingsDevelops loan management software for lenders. The platform supports loan origination, servicing, portfolio monitoring, covenant tracking and investor reporting, tailored for property finance such as…
Sells to B2B specialist lenders, particularly bridge and development finance providers, property finance firms, and SME lenders offering business loans, leasing, and equipment finance. Targets…
Financial Health
HealthyHealthy · Hiring · 6% CAGR over 3y
Location
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDevelops a software platform that provides data, monitoring and financial management tools for physical assets such as vehicles, energy infrastructure and equipment, supporting pay‑per‑use finance,…
Serves institutional funders, asset operators and suppliers in transport, energy, agriculture and construction, including fleet operators, charging and storage providers, hydrogen projects and…
Financial Health
StableStable · Hiring · 57% CAGR over 4y
Location
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsDevelops financial software for debt capital markets. Provides a platform used by agents, issuers, law firms and investors to manage bond, loan and escrow transactions, including deal execution,…
Serves B2B debt capital markets participants, including agents, issuers, arrangers, borrowers, investors, lenders, law firms and financial infrastructure providers at global financial institutions.
Financial Health
StrongStrong · Hiring · 73% CAGR over 2y
Location
LINKEDTRADE TECHNOLOGIES LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides a SaaS platform for designing, pricing, trading and monitoring structured investment products and OTC derivatives. Connects private banks, asset managers, brokers and issuers through a…
Serves B2B financial institutions in structured products, including private banks, asset managers, wealth managers, financial advisers, specialised brokers and distributors, with connectivity to…
Financial Health
StrongStrong
Location
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides cloud-based software for managing company equity and employee share plans, including cap table management, automated financial reporting, compliance across jurisdictions, participant…
Serves private and public companies managing employee equity and share plans, including startups scaling toward IPO and listed businesses with finance, legal, HR, and reward teams responsible for…
Financial Health
StrongStrong · Growing · 0% CAGR over 2y
Location
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides a configurable data platform for go-to-market teams to map target markets, enrich company and contact data, define personas, prioritise accounts, segment prospects, and sync data with sales…
Sells to commercial, revenue operations and sales development leaders at B2B companies, particularly teams running account-based, SDR-led or programmatic go-to-market strategies from startup to IPO…
Financial Health
StrongStrong · Hiring · 98% CAGR over 2y
Location
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsDevelops cloud software for finance teams that consolidates data from multiple Xero, QuickBooks and other accounting systems. Provides tools for group financial reporting, intercompany…
Sells to B2B finance teams, group finance directors, accountants and bookkeepers managing multi-entity organisations that use Xero, QuickBooks or Pennylane.
Financial Health
HealthyHealthy · Hiring · 15% CAGR over 2y
Location
Trajectory
5y · 2022–NowFinancial sub-scores
Computed from 5 filingsProvides a cloud-based software platform used by institutional asset owners and financial institutions to design, analyse and manage investment strategies, integrating data and tools for portfolio…
Sells B2B to institutional asset owners and financial institutions needing technology for investment design, delivery and ESG-related investment workflows.
Financial Health
StableStable · Hiring · 8% CAGR over 4y
Location
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides a subscription-based HR and payroll software platform with tools for employee onboarding, applicant tracking, time‑off management, learning management, document management, analytics and…
Serves B2B customers, mainly small teams and growing companies with 2–500 employees, targeting HR, people, finance and operations leaders responsible for workforce management, payroll, hiring,…
Financial Health
StableStable · Hiring · 52% CAGR over 4y
Location
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDevelops workforce management software for shift‑based organisations, providing tools for employee scheduling, time and attendance tracking, mobile clock‑in, payroll data export, incident reporting,…
Serves shift-based organisations with hourly workforces, including live events venues, security firms, temporary staffing agencies and fire departments, targeting shift, operations, finance and HR…
Financial Health
StableStable · Hiring · 13% CAGR over 4y
Location
Novoville Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDevelops cloud-based software platforms for local governments to manage citizen service requests, payments and engagement, administer parking and mobility systems, and coordinate building repairs and…
Serves local governments, municipalities and public authorities seeking digital citizen services, civic engagement, urban mobility and housing repair programmes, with related platforms used by…
Financial Health
StrongStrong · Growing, Hiring · 41% CAGR over 4y
Location
Nossa Data Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides software for corporate ESG reporting and data management. The platform collects, manages and validates environmental, social and governance data, supports disclosures across frameworks such…
Serves B2B ESG, sustainability and investor relations teams at UK and EU companies facing regulatory reporting and disclosure requests from investors, rating agencies, procurement teams and other…
Financial Health
HealthyHealthy · Hiring · 70% CAGR over 5y
Location
TRIBECA KNOWLEDGE LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDevelops cloud-based software platforms for pharmaceutical and biotech companies to manage product launches, market access and reimbursement planning, tender management, and pipeline coordination,…
Sells B2B to pharmaceutical and biotech companies, particularly global and country teams responsible for product launches, market access, HTA/reimbursement, tenders, capability management, and…
Financial Health
StrongStrong · Growing · 0% CAGR over 4y
Location
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides software tools for client due diligence and financial data analysis, including ID verification, source‑of‑funds checks, bank statement scanning, open banking data collection, and…
Serves B2B professional services firms, including law, accountancy, insolvency and compliance teams, that need client financial checks, AML evidence, source-of-funds reviews and affordability…
Financial Health
HealthyHealthy · Hiring · 36% CAGR over 4y
Location
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsDevelops software and data services that measure carbon, energy and water emissions from cloud and AI usage across platforms such as AWS, Azure and GCP, enabling organisations to analyse cloud…
Serves B2B organisations using AWS, Azure or GCP, particularly FinOps, sustainability, IT leadership and compliance teams seeking cloud sustainability data and GreenOps training.
Financial Health
StrongStrong · Growing, Hiring · 7% CAGR over 3y
Location
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsOperates a mobile and web platform for discovering, comparing, and booking parking spaces. Lists on‑street, off‑street, and event parking, supports advance reservations and payments, and provides…
Serves drivers seeking parking across Europe and North America, and sells to parking operators, cities and event parking providers wanting to attract motorists, manage listings and pricing, and…
Financial Health
StableStable
Location
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsDevelops sustainability management software that enables organisations to collect, manage and analyse ESG and carbon emissions data. The platform supports Scope 1–3 tracking, value chain data…
Serves sustainability, finance and compliance teams at companies with complex value chains, including regulated enterprises and financial institutions needing ESG, carbon and disclosure management…
Financial Health
StableStable · Hiring · 48% CAGR over 2y
Location
ADVANTIQ SOLUTIONS LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDevelops software that converts unstructured business content such as documents, emails and forms into structured data and automated workflows, enabling organisations to process information and run…
Serves businesses and organisations with document-heavy operations, particularly teams handling high volumes of documents, emails and forms that need structured workflow data.
Financial Health
StrongStrong · Growing, Hiring · 82% CAGR over 4y
Location
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDevelops a browser-based software platform for creating and managing product image renders, interactive 3D models, and visualisation applications. Tools enable marketers and manufacturers to build…
Serves B2B manufacturers, particularly marketing and sales teams at companies selling machinery, technical devices, components, specialist products or materials across international markets.
Financial Health
HealthyHealthy · Hiring · 16% CAGR over 4y
Location
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides cloud-based event site planning software that lets organisers design layouts on mapped locations, import floor plans, and place infrastructure such as stages, barriers, staff positions and…
Sells to B2B and public-sector event planners, including event companies, venues, festivals, local governments, sports federations, and teams managing road, sports, cultural, and community events.
Financial Health
HealthyHealthy · Hiring · 55% CAGR over 4y
Location
Journey Mentor Holdings Ltd formerly Journey Mentor Ltd
Trajectory
1y · 2024–NowDevelops travel technology software for airlines, travel agencies, and travel management companies. Provides SaaS tools for flight sales, trip management, dynamic pricing, loyalty programmes, cargo…
Serves B2B customers in the travel sector, including travel agents, travel management companies, airlines, freight and cargo operators, jet operators/owners and travel marketing companies.
Financial Health
Insufficient historyInsufficient history
Location
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDevelops a cloud-hosted digital banking platform that connects banks and businesses, integrating core banking and payment services with tools for finance management, customer data access, cash…
Serves B2B customers, primarily banks and business finance teams, including organisations needing integrated banking, payments, finance management, credit access, FX exposure management and…
Financial Health
HealthyHealthy · Hiring · 73% CAGR over 4y
Location
MARKETSIO LIMITED
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsDevelops software platforms for managing and distributing financial market data. Provides a universal data platform, API abstraction layer, and tools that enable banks, brokers, exchanges, and funds…
Serves B2B financial services organisations, including banks, brokers, exchanges, funds and other capital markets participants.
Financial Health
StrongStrong · Growing, Hiring · 16% CAGR over 5y
Location
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsOperates a digital platform for carbon markets that connects companies and investors with environmental projects. Provides tools for project data verification, transaction management, monitoring of…
Serves corporates with net zero or ESG commitments, carbon buyers and climate finance investors, alongside carbon project partners and communities in climate-vulnerable low-income countries seeking…
Financial Health
HealthyHealthy · 0% CAGR over 2y
Location
Prevalent AI Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDevelops cybersecurity software that integrates security and asset data into a unified knowledge graph to provide exposure management. The platform identifies attack surfaces, prioritises…
Sells to B2B cybersecurity and IT security teams in organisations managing complex digital assets, identities, cloud environments and attack surfaces, particularly buyers responsible for risk…
Financial Health
WeakWeak · 0% CAGR over 4y
Location
Trajectory
4y · 2020–NowFinancial sub-scores
Computed from 4 filingsDevelops software and credit products that enable payment service providers and platforms to offer payment‑linked financing to businesses. Advances funds to merchants and collects repayments…
Serves small businesses needing payment-linked financing, especially immigrant- and woman-owned firms, plus payment service providers, marketplaces, brokers, vendors, fintechs and neobanks in the US,…
Financial Health
StrongStrong · Hiring · 100% CAGR over 4y
Location
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides fintech software platforms for neobanks, banking‑as‑a‑service providers and online marketplaces, including core banking systems, internet banking, risk management tools, API hubs and…
Sells to B2B fintech and platform operators, including neobanks, marketplaces, BaaS providers, and transportation, food or car-sharing networks building or replacing financial infrastructure.
Financial Health
StableStable · -47% CAGR over 2y
Location
GRIDCOG INTERNATIONAL LIMITED
Trajectory
2y · 2024–NowFinancial sub-scores
Computed from 2 filingsDevelops energy modelling and simulation software used to analyse and design electricity projects. The platform models multi-site and multi-asset systems such as EV charging, battery storage, hybrid…
Sells B2B to energy analysts and teams at large-scale asset developers, e-mobility and EV charging operators, consultants serving commercial and industrial clients, and energy majors working on…
Financial Health
WeakWeak · 0% CAGR over 1y
Location
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsDevelops software platform for private capital firms to manage fund and deal operations, including cap table tracking, waterfall calculations, investor reporting, document management, compliance…
Serves private capital firms and related law firms, targeting fund investment, legal, finance, audit and compliance teams, plus portfolio company managers and limited partners involved in private…
Financial Health
StableStable
Location
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDevelops cloud‑native loan origination software for mortgage lenders. The platform provides configurable application forms, workflow automation, integrations and decision‑support tools to manage,…
Serves mortgage lenders, building societies and new lending entrants handling specialist or complex mortgage applications, including teams managing broker and intermediary channels.
Financial Health
StrongStrong · Growing, Hiring · 52% CAGR over 4y
Location
Avvoka Limited
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsDevelops legal drafting automation software for law firms and in-house legal teams, enabling users to generate documents from firm precedents, standardise templates, manage clauses and workflows, and…
Sells to B2B legal customers, primarily modern law firms and in-house legal teams that manage complex drafting, firm precedents and document standards.
Financial Health
HealthyHealthy · Hiring · 40% CAGR over 4y
Location
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides an open banking payment platform enabling businesses to accept Pay by Bank transfers and card payments in store and online. Offers POS terminals, payment links, QR payments, online checkout,…
Serves UK businesses of varying sizes that take in-store, remote or online customer payments, including retailers, ecommerce merchants and service businesses seeking alternatives to card processing.
Financial Health
DistressedDistressed · -86% CAGR over 2y
Location
Planlab.ai Limited
Trajectory
2y · 2025–NowFinancial sub-scores
Computed from 2 filingsDevelops AI-powered project scheduling software that generates and optimises complex project schedules, provides disruption alerts, supports scenario planning and collaboration, and integrates with…
Serves B2B project planning teams at large construction and infrastructure organisations, including major contractors, energy utilities and project portfolio owners.
Financial Health
WeakWeak · 0% CAGR over 1y
Location
MeeToo Education Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDevelops digital mental health support applications that enable users to share problems anonymously and receive moderated peer support, advice and resources. The platform includes crisis…
Serves NHS commissioners, local health systems, employers and organisations supporting children, young people and autistic people, alongside individuals seeking anonymous mental health support.
Financial Health
HealthyHealthy · -7% CAGR over 4y
Location
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDevelops enterprise strategic portfolio management software for planning, prioritising and tracking project and product portfolios. Provides tools for resource capacity planning, financial budgeting…
Sells to enterprise organisations managing complex project, product and technology portfolios, including strategy and transformation leaders, PMOs, IT leadership, product portfolio teams and finance…
Financial Health
StableStable · Hiring · 7% CAGR over 4y
Location
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsDevelops a digital control‑of‑works software platform used on high‑risk industrial sites. The system manages permits, safety briefings, inspections, registers and tasks, providing real‑time…
Serves B2B organisations running major high-risk projects, especially in construction, utilities, nuclear and defence, targeting site operations, health and safety, compliance teams, and contractor…
Financial Health
StableStable · Hiring · 22% CAGR over 2y
Location
COMPARESOFT LTD
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsOperates an online platform for comparing and selecting B2B software. Provides tools to define requirements, analyse software products using data and algorithms, generate shortlists, and connect…
Serves B2B software buyers across micro, small, medium and enterprise organisations, including public sector bodies, universities and commercial teams seeking categories such as CMMS, ERP, asset,…
Financial Health
HealthyHealthy · Hiring · 24% CAGR over 4y
Location
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides a platform that connects banks with merchants to deliver card‑linked offers and savings for customers, enabling financial institutions and retailers to run promotions and customer engagement…
Sells B2B to banks, financial institutions and consumer-facing merchants, especially teams responsible for customer engagement, retention and embedded savings propositions.
Financial Health
WeakWeak · Hiring · 16% CAGR over 4y
Location
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsDevelops software platform for financial institutions to measure and analyse carbon emissions linked to transactions and portfolios, providing data analytics, reporting tools and APIs to support…
Sells to financial institutions, including banks, fintechs and other finance-sector organisations needing sustainability and carbon-related data capabilities for their customers, products or…
Financial Health
HealthyHealthy · Hiring · 9% CAGR over 3y
Location
Trajectory
5y · 2022–NowFinancial sub-scores
Computed from 5 filingsProvides a digital customer platform that organisations integrate into their offerings, giving users access to business support resources, compliance guidance, and practical tools. Also delivers…
Sells B2B to UK enterprises and consumer-facing brands seeking to strengthen customer relationships, retention and acquisition for end users including businesses, individuals and families.
Financial Health
HealthyHealthy · 0% CAGR over 4y
Location
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How London startup companies work and how to sell to them
What they do
London startups usually earn revenue by packaging a new workflow into a product or repeatable service, then proving that customers will pay before costs harden. Subscription software, usage-priced infrastructure, transaction fees, licences, marketplace commissions and paid implementation work all appear in the cohort. Early engagements often start as proof-of-value deployments or narrow departmental contracts, with pricing adjusted while the firm tests willingness to pay, delivery effort and churn. Many still rely on founder-led selling, so revenue quality is judged less by headline bookings and more by repeatability, cash collection, gross margin and whether accounts can expand without bespoke work each time.
Who they sell to
Their buyers are often SME owners, departmental heads in mid-market businesses, enterprise technology teams, public-sector commissioners or consumers reached through direct digital channels. Decision makers vary by offer: CFOs usually own finance and reporting spend, CTOs and VP Engineering evaluate developer or infrastructure tools, while Heads of Operations, Procurement or Compliance get involved where workflow change or risk is material. Procurement is typically direct and relationship-led at first; larger accounts tend to introduce security review, legal terms, budget-holder sign-off and, in public-sector contexts, formal frameworks or RFPs. Sales cycles range from self-serve conversion to multi-stakeholder pilots.
What they buy
Most London startups tend to spend on systems that help them acquire customers, ship product, manage cash and pass buyer scrutiny. Common categories include CRM, billing, payments, accounting, analytics, product telemetry, cloud hosting, developer tooling, cyber security, HR, payroll, recruitment, legal, tax, insurance and workspace support. Firms selling into regulated customers also buy compliance advice, audit preparation, security testing and contract review earlier than other young companies. Budgets are usually constrained, so vendors that reduce implementation effort, avoid long commitments and map cost to usage often fit the buying pattern better than estate-wide platforms.
Why and how to sell to them
Buying intent tends to appear when a startup moves from founder-led delivery to repeatable commercial operations: after funding, senior hiring, a first enterprise customer, regulated-market entry, rising support volumes or a need to evidence security and financial controls. Pain points are usually practical rather than abstract: too much manual work, unclear sales ownership, weak management information, procurement delays, compliance drag and burn-rate pressure. A useful outbound angle is to connect the offer to a near-term operational constraint. Messages that assume abundant budget usually miss; buyers often prefer contained pilots, clear payback logic and less rework as teams specialise.
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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