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Growth Equity Companies in the UK: 300+ Active Firms (2026)
Growth equity firms provide expansion capital to established scaleups and profitable private businesses across the UK.
Buying activity centres on founder-led scaleups, profitable mid-market companies and private businesses that already have recurring or repeatable revenue rather than concept-stage risk. Engagements tend to be diligence-heavy and relationship-led, with investment teams assessing revenue quality, unit economics, management depth and the route from founder-led sales to repeatable go-to-market. Portfolio support usually matters as much as capital allocation: hiring senior operators, preparing governance packs, refining pricing, and building the reporting cadence expected before a later exit or institutional funding round. For buyers and partners, the relevant contact is usually the investment team, with finance and operating partners involved once a mandate is live.
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The UK market is fairly small in headcount terms, with 364 actively trading growth equity firms and reported employment of 1,264 people. That points to an investment-management base built around compact teams rather than large operating workforces: origination, diligence, portfolio support and investor relations can sit inside the same partnership structure. The cohort also includes 42 companies with turnover above £5M, so the revenue distribution appears uneven, with a minority of firms sitting above the most visible commercial threshold. Recent formation is not absent, but the market still looks relationship-led, where track record and access to growth-stage deal flow matter more than broad physical scale.
Private-company investment is shaped less by a single sector rulebook than by the activities each manager undertakes. Firms raising external capital, advising on investments, arranging deals or managing regulated vehicles may fall within the FCA perimeter, while direct investment from a balance sheet can sit outside parts of that regime. Marketing to investors, valuation processes, conflicts management and client-money controls remain recurring compliance questions. Market practice is also influenced by BVCA guidance, UK GAAP reporting conventions and HMRC treatment of investment structures. The practical result is a sector where legal form, fund structure and investor type often matter as much as the target company’s growth profile.
Future development appears likely to favour managers that can show repeatable sourcing and operational support rather than capital alone. The cohort’s compact staffing profile suggests many firms will keep specialist focus, whether by sector, deal stage or founder transition, instead of adding broad internal teams. Fundraising pressure may also push managers toward co-investment, continuation structures and closer reporting to limited partners. Consolidation is plausible where smaller partnerships struggle to raise fresh pools of capital, but the category tends to remain fragmented because personal networks and domain credibility still carry weight in originating growth-stage deals.
364
Active firms
2026
42
Over £5M
Reported revenue
41
Recent incorporations
Incorporated since 2022
Key facts
About 11% of the trading cohort reports turnover above £5M (42 of 364 firms) — the rest sits below that revenue band.
11% of the cohort was incorporated since 2022 (41 firms), so a sizeable share is in its first few filing cycles.
Growth equity sits between earlier-stage venture funding and control-oriented buyout activity.
The segment targets established scaleups and profitable private businesses rather than pre-revenue startups.
Expansion capital is commonly used for hiring, product development, acquisitions or international sales.
Top UK growth equity companies
Risk Capital Partners
Private equity investment firm that invests £2–£15 million in established profitable businesses, taking minority or majority stakes and supporting management teams with growth strategies,…
Serves UK-based entrepreneurs, management teams and founder shareholders of established, profitable companies seeking £2m–£15m equity, with particular relevance to consumer, leisure and retail…
Location
Provides private equity investment to growth companies, primarily in B2B services and technology sectors. Partners with management teams to fund expansion, support acquisitions, and develop…
Serves experienced management teams of UK-based B2B services and technology growth companies valued £20m-£100m, including niche leaders and market challengers, alongside investors in private equity…
Location
Provides private equity investment to management teams of mid‑market businesses, offering growth capital, management buyout funding and strategic support. Invests across sectors including business…
Serves ambitious UK management teams and business leaders seeking private equity backing, across business services, consumer, healthcare, ICT, industrials, media and technology sectors.
Location
UC PARTNERS LIMITED
Trajectory
2y · 2024–NowFinancial sub-scores
Computed from 2 filingsPrivate investment firm providing growth capital to mid‑market businesses. Partners with founders and management teams to invest in and scale companies, raises capital from investors, and manages…
Serves founders and entrepreneurial management teams of UK mid-market businesses seeking growth capital, strategic support, and investment partners.
Financial Health
StrongStrong · Growing, Hiring · 40% CAGR over 1y
Location
Risk Capital Limited
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsProvides private equity investment of £2m–£15m to established profitable businesses. Takes minority or majority stakes and partners with management teams to fund acquisitions, roll‑outs and organic…
Targets entrepreneurs, management teams and founder shareholders of established, profitable UK companies seeking £2m–£15m equity investment, with emphasis on consumer, leisure and retail sectors.
Financial Health
StableStable · -9% CAGR over 3y
Location
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsPrivate equity investment firm that invests in mid-sized companies in the UK, Ireland and Benelux. Partners with management teams to provide capital and strategic, operational and financial support…
Serves entrepreneurs, owners and management teams of mid-sized companies in the UK, Ireland and Benelux with growth or operational improvement potential.
Financial Health
StrongStrong
Location
NEXT WAVE PARTNERS LLP
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides growth capital through private equity investments. Partners with entrepreneurs to fund business expansion, support scaling strategies, and develop portfolio companies through strategic…
Targets entrepreneurs and owner-managed growth businesses seeking private equity backing, alongside portfolio companies and investment stakeholders in the growth capital market.
Financial Health
HealthyHealthy · Hiring · 41% CAGR over 2y
Location
Trajectory
2y · 2025–NowFinancial sub-scores
Computed from 2 filingsMakes long-term equity investments in small and medium-sized enterprises and provides shared services including IT infrastructure, digital technology, legal, finance, HR and risk support, helping…
Targets UK small and medium-sized entrepreneurial companies, particularly owner-led brands seeking long-term equity investment and centralised business support for growth.
Financial Health
StableStable · 5% CAGR over 1y
Location
Invstr Capital Limited
Trajectory
4y · 2023–NowFinancial sub-scores
Computed from 4 filingsInvests its own capital in small and medium-sized businesses, providing growth funding or acquiring companies outright. Works with existing owners to support expansion or purchase businesses to…
Serves owners, advisers and management teams of SMEs with £3m-£30m revenue seeking growth capital, partial investment or a full business exit.
Financial Health
StrongStrong
Location
Private equity investment firm that invests in mid‑market digital and technology‑enabled businesses. Provides growth capital and strategic support to companies in sectors such as AI‑enabled services,…
Serves management teams and founders of UK mid-market digital businesses, typically companies valued £50m-£300m seeking £30m-£150m investment, across AI-enabled services, digital media, marketplaces…
Location
Provides growth capital investment to B2B technology and specialist services businesses. Partners with management teams to fund expansion, offering flexible financing and strategic support to help…
Serves ambitious entrepreneurs and management teams of high-growth, intellectual-capital-led B2B technology and specialist services businesses in the knowledge economy.
Location
YFM Private Equity Limited
Trajectory
2y · 2024–NowFinancial sub-scores
Computed from 2 filingsManages private equity and venture capital funds that invest in small and medium-sized businesses. Provides growth capital and management buyout funding, and supports portfolio companies with…
Serves UK small and medium-sized businesses, founders and management teams seeking £3m–£15m growth capital or management buyout funding, alongside investors in its VCT and buyout funds.
Financial Health
HealthyHealthy · Hiring · 23% CAGR over 1y
Location
Provides private equity investment to management teams, funding management buyouts, growth capital and development projects. Works with businesses across sectors to support expansion, acquisitions…
Serves UK management teams and business leaders seeking private equity backing, across business services, consumer, healthcare, ICT, industrials, media and technology sectors.
Location
Provides private equity investment through buyout and growth credit funds. Invests in UK businesses across multiple sectors, acquires equity stakes, and works with management teams to support growth,…
Serves UK entrepreneurs, founder/CEOs and management teams seeking private equity or growth credit, alongside investors and advisers in the private equity market across multiple sectors.
Location
Panoramic Growth Equity (Fund Management) LLP
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides equity and debt financing to small and medium-sized businesses. Invests typically £2m–£8m to support management buyouts, growth capital, and private float transactions, and manages…
Targets owners and management teams of UK privately owned SMEs across sectors, typically businesses with £3m-£20m revenue and at least £500k EBITDA seeking growth capital, management buyouts or…
Financial Health
WeakWeak · -8% CAGR over 4y
Location
Trajectory
2y · 2020–NowFinancial sub-scores
Computed from 2 filingsPrivate equity investment firm that invests in and partners with entrepreneurs and family‑owned businesses. Provides capital and strategic support to help portfolio companies grow, scale operations,…
Serves successful entrepreneurs and family-owned companies seeking growth capital and operational scaling, primarily in Western Europe, with emphasis on the UK, Netherlands, France, Belgium and…
Financial Health
HealthyHealthy · Hiring · 20% CAGR over 1y
Location
Private equity investment firm that invests in and partners with founder- and family-owned businesses, providing capital and strategic support to scale operations and grow portfolio companies.
Targets successful entrepreneurs and family-owned businesses seeking growth investment, particularly in the UK, Netherlands, France, Belgium and Ireland, alongside investors allocating capital to…
Location
Trajectory
4y · 2023–NowFinancial sub-scores
Computed from 4 filingsPrivate equity investment manager that invests £/€30–100 million in mid‑market companies. Focuses on growth-stage businesses in business services, financial services, and energy or industrial…
Serves founders and management teams of growing mid-market European businesses seeking £/€30-100m investment, particularly in business services, financial services, and energy/industrial services.
Financial Health
HealthyHealthy · 0% CAGR over 2y
Location
YFM Equity Partners LLP
Trajectory
2y · 2024–NowFinancial sub-scores
Computed from 2 filingsProvides private equity investment to small and medium-sized businesses, offering growth capital and management buyout funding. Invests equity stakes through managed funds, typically £3–15m, and…
Serves UK SMEs, founders and management teams seeking £3m-£15m equity investment for growth capital or management buyouts, typically with £1m+ sales or profits.
Financial Health
HealthyHealthy · Hiring · 23% CAGR over 1y
Location
SPECTRUM EQUITY UK, LLP
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides growth equity investment to technology, data and digital service companies. Partners with management teams to fund expansion, taking minority stakes and supporting portfolio businesses with…
Targets founders and leadership teams of growth-stage technology and internet-enabled businesses, including software, data, healthcare, fintech, cybersecurity and consumer digital companies seeking…
Financial Health
DistressedDistressed
Location
Manages private equity funds that invest in UK businesses across multiple sectors. Provides buyout and growth credit financing and works with portfolio companies to support expansion, operational…
Serves UK business owners, founders/CEOs and management teams seeking private equity or growth credit, alongside investors and advisers involved in mid-market, multi-sector transactions.
Location
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsPrivate equity investment firm that invests in technology and tech‑enabled businesses. Provides growth capital and strategic support to portfolio companies, including acquisitions, operational…
Serves ambitious founders and management teams of high-growth tech and tech-enabled businesses, particularly software and tech-enabled services firms seeking scale-up investment and support.
Financial Health
StrongStrong · Growing, Hiring · 28% CAGR over 4y
Location
Private equity firm that invests in and partners with mid‑market companies. Provides capital and strategic support to management teams, manages investment funds for investors, and develops portfolio…
Serves institutional investors and management teams of UK mid-market businesses valued around £30m-£150m across a range of sectors seeking private equity backing.
Location
Provides private equity investment through buyout and growth credit funds, investing in businesses across multiple sectors. Works with portfolio companies to support expansion, operational…
Serves UK entrepreneurs, founders and CEOs of growth businesses, alongside institutional and professional investors, across multiple sectors.
Location
Monacosol Ltd
Trajectory
2y · 2024–NowFinancial sub-scores
Computed from 2 filingsInvests in small and medium-sized B2B software and technology companies. Provides growth capital alongside strategic support in areas such as sales development, marketing, finance, and technology to…
Targets founders and owners of UK SME B2B software and technology businesses seeking growth capital and practical support, including firms in vertical software and tech-enabled services.
Financial Health
StrongStrong · Hiring · 22% CAGR over 1y
Location
Private equity investment firm that invests in growth-stage companies in services and technology sectors. Provides equity investments and strategic support to businesses in areas such as data and…
Serves management teams and owners of growth-stage services and technology companies valued up to £300m, especially in data and insight, managed IT services, software and tech-enabled business…
Location
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides growth capital and strategic support to consumer brands. Invests in retail, food, beauty and lifestyle businesses, partnering with founders to scale operations, expand digital and physical…
Serves founders and leadership teams of fast-growing consumer brands with £5m-£50m sales, particularly purpose-led, founder-led businesses seeking an investment partner to scale.
Financial Health
StableStable · -4% CAGR over 4y
Location
ASHRIDGE CAPITAL FUND I GP LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides private equity investment to entrepreneur‑led and owner‑managed businesses. Invests typically £1m–£20m to support management buyouts, growth financing, acquisitions, and shareholder…
Targets ambitious entrepreneurs and management teams in owner-managed businesses seeking £1m-£20m private equity for MBOs, growth, shareholder restructurings, cash-out transactions or acquisitions.
Financial Health
StrongStrong
Location
Provides growth capital and private equity investment to businesses, primarily in technology‑enabled services, software and data, and financial services, and works with management teams to support…
Serves entrepreneurs, founders and management teams of growth businesses in tech-enabled services, software and data, and financial services seeking private equity partnership.
Location
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides growth private equity investment to companies across sectors including technology, healthcare, financial services, consumer and business services. Partners with management teams, supplies…
Serves management teams and stakeholders at growth companies in business services, consumer, financial services, healthcare and technology sectors.
Financial Health
HealthyHealthy · 0% CAGR over 4y
Location
ORCHID HOLDINGS UK LTD
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsProvides long‑term investment capital to mid-sized businesses. Makes control, minority and structured equity investments, partnering with management teams to support growth in sectors including…
Serves growing mid-market businesses and management teams seeking long-term investment partners, particularly in business services, consumer, financial services, healthcare and industrials, typically…
Financial Health
StrongStrong · Hiring · 10% CAGR over 3y
Location
Trajectory
2y · 2023–NowFinancial sub-scores
Computed from 2 filingsPrivately funded investment group that acquires and invests in mid‑market businesses and manages a portfolio of operating companies. Focus areas include technology, cyber security, marketing and…
Targets owners of UK mid-market businesses seeking acquisition or long-term investment, especially marketing/creative agencies, cyber security, AI, edtech, data consultancy, SaaS, content creation…
Financial Health
HealthyHealthy · Hiring · 22% CAGR over 1y
Location
Expedition Operations Ltd
Trajectory
2y · 2024–NowFinancial sub-scores
Computed from 2 filingsProvides growth equity investment to software companies, typically investing €10m–€30m, and supports portfolio businesses with operational expertise, strategic guidance, and liquidity options for…
Serves bootstrapped European software founders and rapidly growing software companies seeking €10m–€30m growth equity, founder liquidity, and support for global expansion.
Financial Health
HealthyHealthy · Hiring · 100% CAGR over 1y
Location
Manages investment funds on behalf of team members, associates and clients, investing in knowledge‑based businesses including IT, software, education and training, and specialist professional and…
Targets founders, CEOs and management teams of UK knowledge-based services and software businesses, including IT, education and training, specialist business services and professional services,…
Financial Health
Insufficient historyInsufficient history
Location
CODEX CAPITAL PARTNERS LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsActs as an independent financial sponsor providing equity capital to businesses, partnering with management teams to fund growth, recapitalisations and ownership transitions using investment from…
Serves UK-based businesses and management teams seeking a first institutional equity partner for growth, recapitalisation or ownership transition, alongside institutional and family office investors.
Financial Health
DistressedDistressed · -11% CAGR over 2y
Location
Provides long-term minority equity investment to growing businesses. Invests in early-stage deep tech and life sciences companies, private SMEs, and small-cap quoted firms, offering growth capital…
Serves entrepreneurs, management teams and small to mid-sized businesses across the UK and Ireland, including early-stage deep tech and life sciences ventures, private SMEs seeking scale-up capital,…
Location
Private equity firm investing in lower mid‑market companies in the financial services ecosystem, particularly software, technology and tech‑enabled services businesses. Provides growth capital and…
Serves founders and entrepreneurial management teams at European lower mid-market software, technology and services businesses within the financial services ecosystem.
Location
Apposite Capital LLP
Trajectory
2y · 2024–NowFinancial sub-scores
Computed from 2 filingsProvides private equity investment and investment management focused on healthcare companies in the UK and Europe. Backs lower mid‑market healthcare businesses through management buyouts, growth…
Serves lower mid-market healthcare SMEs across the UK and Europe, including founders, owners and management teams seeking first institutional capital, buyouts, growth capital, retirement sales or…
Financial Health
StrongStrong · Profitable, Growing · 0% CAGR over 1y
Location
Manages private equity funds that invest in businesses across multiple sectors. Provides buyout and growth credit investments and works with portfolio companies to support expansion, operational…
Serves UK entrepreneurs, founder-CEOs and management teams seeking private equity or growth credit, alongside institutional and professional investors allocating to private equity funds across…
Location
Trajectory
2y · 2020–NowProvides growth capital and investment through a family office structure, investing in service-sector businesses and partnering with management teams to support expansion, acquisitions, and long-term…
Targets UK service-sector businesses seeking growth capital and strategic partnership, including owner-led or growth-stage companies looking for an investment partner.
Financial Health
Insufficient historyInsufficient history
Location
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsProvides private equity and debt financing to businesses, supporting management buyouts, growth capital and equity investments. Manages regional investment funds and offers property development…
Serves entrepreneurial and established UK businesses, management teams pursuing buyouts, owners seeking exits or growth funding, experienced property developers and asset managers, plus private and…
Financial Health
DistressedDistressed · -25% CAGR over 3y
Location
Private equity investment firm that acquires and invests in mid‑market Western European companies. Focuses on consumer, healthcare, industrial and services sectors, supporting portfolio businesses…
Targets mature mid-market businesses in Western Europe with €50m-€350m enterprise value, across consumer, healthcare, industrials & engineering, and services sectors.
Location
Silverfleet Capital
Provides private equity investment services, acquiring and partnering with established businesses and supporting expansion. Manages a portfolio of companies across sectors and works with management…
Serves ambitious management teams and high-growth businesses seeking private equity backing for international expansion across varied sectors.
Location
SMEDVIG CAPITAL LIMITED (CONSOLIDATED)
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsInvests in private market assets including private equity and venture capital. Provides direct investment in growth‑stage businesses and commits capital as a limited partner to private equity and…
Serves the Smedvig family and select family offices, with investment relationships spanning growth-stage founders and private equity or venture capital managers across UK, Nordics, BeNeLux and DACH.
Financial Health
StrongStrong · Growing · 0% CAGR over 4y
Location
E.I.C. Group Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsOperates as a holding and private equity investment firm, investing in established and growth‑oriented businesses across multiple industries. Provides growth capital, recapitalisation and liquidity…
Targets owners, entrepreneurs and management teams of SMEs and established growth-oriented businesses across industries seeking liquidity, succession options, recapitalisation or growth capital.
Financial Health
WeakWeak · -23% CAGR over 2y
Location
FRESTON SHIPPING LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides growth equity investment and strategic support to consumer-focused businesses and startups. Partners with founders to scale brands, offering capital, operational experience and guidance…
Targets founders and entrepreneurs behind UK consumer brands and disruptive businesses ready to scale, from startups to established brands.
Financial Health
StrongStrong · Hiring · 11% CAGR over 4y
Location
ANAVO CAPITAL LTD
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides private equity investment to established businesses, supplying long-term capital and strategic guidance. Partners with management teams to support acquisitions, operational improvements, and…
Targets business owners and leadership teams of established companies with strong fundamentals and growth potential seeking a long-term private equity partner.
Financial Health
HealthyHealthy · Hiring · 47% CAGR over 4y
Location
Spring Ventures LLP
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides private equity investment and advisory support to businesses with high growth potential, working with management teams to fund expansion, evaluate opportunities, and support portfolio…
Targets ambitious management teams at high-growth UK companies seeking private equity backing and hands-on support, particularly entrepreneurial businesses with potential to scale.
Financial Health
HealthyHealthy
Location
H2 EQUITY PARTNERS LIMITED
Trajectory
3y · 2024–NowFinancial sub-scores
Computed from 3 filingsPrivate equity investment firm that invests in mid-sized companies with growth or improvement potential, providing capital and working with management teams through active non-executive roles to…
Targets entrepreneurs, owners and management teams of mid-sized companies in the UK, Ireland and Benelux with growth or operational improvement potential.
Financial Health
StableStable · 0% CAGR over 2y
Location
TPA Capital LLP
Trajectory
2y · 2024–NowFinancial sub-scores
Computed from 2 filingsPrivate equity investment firm targeting small and medium-sized businesses. Identifies, invests in and manages equity stakes in companies, working with management teams to support growth and develop…
Targets UK SME owners and management teams seeking private equity investment to scale or realise business opportunities.
Financial Health
StrongStrong · Growing · 0% CAGR over 1y
Location
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How UK growth equity companies work and how to sell to them
What they do
Growth equity managers make money by raising pools of capital from institutions, family offices and other investors, then deploying that capital into private companies with proven revenue traction. Their economic model usually combines ongoing management fees with carried interest if investments exit above an agreed return threshold; some also earn monitoring, transaction or co-investment fees depending on structure. The product is not software or advice in isolation, but capital plus judgement: origination, due diligence, negotiation, governance and portfolio support. Day-to-day work is document-heavy, with investment papers, financial models, legal diligence, valuation reviews and board reporting sitting around a small number of live deals.
Who they sell to
Growth equity firms sell in two directions. On one side, they market funds or mandates to pension schemes, endowments, insurers, family offices and wealth managers, where CIOs, investment committees and external consultants tend to control allocation. On the other, they sell capital to founders, chief executives, CFOs and chairs who want expansion funding without treating the business as early venture risk. Most mandates are relationship-led rather than self-serve: introductions come through corporate finance advisers, lawyers, accountants, banks, sector networks and prior portfolio contacts. Institutional capital raising can involve formal questionnaires and consultant screening, while company-side origination is usually a long direct-sales process built on trust, timing and perceived fit.
What they buy
Most growth equity firms tend to spend on tools and services that improve sourcing, diligence, investor reporting and portfolio oversight. Common software needs include CRM for deal flow, secure document management, fund accounting, portfolio monitoring, valuation workflows, analytics, compliance tracking and cyber security. Service budgets often go to legal counsel, tax advisers, financial due diligence, commercial diligence, market mapping, executive search, interim finance support and marketing help for fundraising. Operating partners may also buy services on behalf of portfolio companies, especially recruitment, pricing work, revenue operations, procurement support and finance-system upgrades. Sellers should expect a small buying group and a preference for evidence over broad platform claims.
Why and how to sell to them
Buying intent often appears when a manager is raising a new fund, adding operating partners, taking on more portfolio companies, preparing an exit, changing fund administrators or tightening FCA-facing processes. Pain points are usually practical: too much partner time spent on manual reporting, inconsistent portfolio metrics, slow diligence on competitive processes, weak visibility of proprietary deal flow, or pressure from investors for clearer valuation and performance evidence. Outbound tends to work better when it names a workflow problem rather than claiming to help with growth. Useful angles include faster investment-committee preparation, cleaner LP reporting, audit-ready documentation, better founder coverage and support for portfolio hiring or revenue operations.
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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