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Growth Equity Companies in London: 100+ Active Firms (2026)
Growth equity companies provide expansion capital to established high-growth businesses from a London investment base.
Buying centres sit with investment committees, portfolio-operating teams and finance leaders rather than software buyers or procurement desks. The London growth equity model tends to serve revenue-generating private companies that have moved beyond seed-style risk but are not obvious buyout candidates. Engagements are usually bespoke: minority investment, commercial due diligence, board-level reporting, and follow-on support around hiring, pricing, international sales or acquisitions. Sellers are often specialist investment teams with sector theses, while buyers of their capital are founders, management teams and existing shareholders looking for scale-up funding without handing over full control.
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London has 173 actively trading growth equity companies, giving a focused view of managers and investment businesses rather than a broad private-capital universe. Reported employment is lean: the cohort has 603 staff in aggregate, consistent with specialist deal teams, finance staff and portfolio-support roles rather than operating-company workforces. The mix also includes managers above the lower mid-market threshold and a newer tail of businesses formed since the current fundraising cycle tightened, so headcount should be read as an indicator of operating capacity, not portfolio reach.
Private-market investing sits inside a rule-heavy perimeter even when the underlying portfolio companies are not themselves regulated. Managers need clear boundaries between marketing to investors, advising on transactions, handling conflicts and presenting valuations. Fund documentation, side letters, investor suitability checks and investor reporting create much of the compliance workload. The market structure is also relationship-led: access to later-stage private companies often comes through advisers, existing shareholders and sector specialists, so diligence quality and reputation matter as much as ticket size. London’s institutional density helps origination, but it also makes differentiation harder for newer managers.
London’s growth equity cohort appears likely to remain selective rather than broad-based. A sizeable part of the market still looks like specialist investment partnerships, with only a smaller set carrying the staff base associated with platform functions and portfolio operations. That tends to favour managers with repeatable origination and sector focus, particularly where later-stage private companies need capital but are cautious about valuation resets. Consolidation is possible, but the more likely near-term pattern is quieter: fewer generalist propositions, more emphasis on portfolio support, and longer scrutiny before new commitments are made.
173
Active firms
2026
20
Above £5M
reported revenue
25
Since 2022
new incorporations
Key facts
About 11% of the trading cohort reports turnover above £5M (20 of 173 firms) — the rest sits below that revenue band.
14% of the cohort was incorporated since 2022 (25 firms), so a sizeable share is in its first few filing cycles.
Growth equity usually sits after early venture funding and before a buyout route becomes the main option.
London is the investment base for this list, rather than a claim about where portfolio companies operate.
Mandate, fund structure and portfolio fit often separate otherwise similar investment firms in this segment.
Top London growth equity companies
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
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
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
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
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
WINCHESTER CAPITAL LTD
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsPrivate equity investment firm that invests in growth companies in technology and business services sectors. Provides equity investments and works with management teams to expand through…
Sells to management teams and shareholders of growth-stage B2B services and technology companies, especially in data and insight, managed IT services, software, and tech-enabled business services,…
Financial Health
WeakWeak · -16% CAGR over 4y
Location
Bowmark Capital
Provides private equity investment in growth-stage companies, primarily in data and insight, managed IT services, software, and tech‑enabled business services. Makes equity investments and works with…
Serves institutional investors and management teams of growth companies valued up to £300m, particularly in data and insight, managed IT services, software and tech-enabled business services.
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
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
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
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
FARVIEW EQUITY PARTNERS LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsPrivate equity investment firm that invests in enterprise technology businesses, particularly SaaS, business and information services, and financial technology companies. Partners with management…
Targets European enterprise technology businesses, especially SaaS, business and information services, and fintech companies beyond product-market fit, led by entrepreneurs seeking growth capital and…
Financial Health
HealthyHealthy · Hiring · 15% CAGR over 4y
Location
ESSEX WOODLANDS HEALTH VENTURES UK LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides growth equity investment to healthcare and life sciences companies, focusing on pharmaceuticals, medical technology, and tech‑enabled healthcare services. Partners with management teams to…
Targets growth-stage healthcare and life sciences businesses in the US and Europe, particularly pharmaceuticals, MedTech and tech-enabled services companies, plus limited partners seeking…
Financial Health
StableStable · -8% CAGR over 4y
Location
NEXT WAVE CORPORATE MEMBER LIMITED
Trajectory
3y · 2023–NowProvides growth capital investments in businesses through private equity, partnering with entrepreneurs and management teams to scale and transform companies, and managing a portfolio of invested…
Targets entrepreneurs and owner-managed growth businesses seeking private equity backing, particularly management teams looking to scale and transform established companies.
Financial Health
Insufficient historyInsufficient history
Location
Bowmark Capital
Private equity investment firm that invests in growth-stage companies in the services and technology sectors. Provides equity investments and strategic support to management teams to accelerate…
Serves institutional investors and management teams of growth-stage services and technology businesses, particularly companies in data and insight, managed IT services, software and tech-enabled…
Location
Bowmark Capital
Private equity investment firm that backs growth-stage companies in services and technology sectors. Makes equity investments and partners with management teams to scale businesses through…
Serves institutional investors and management teams of growth companies valued up to £300m, particularly in data and insight, managed IT services, software and tech-enabled business services.
Location
Bowmark Capital
Private equity investment firm that invests in growth companies in the technology and services sectors. Provides equity funding and strategic support to management teams to accelerate expansion…
Serves institutional investors and management teams or owners of growth companies valued up to £300m, mainly in data and insight, managed IT services, software and tech-enabled business services.
Location
Bowmark Capital
Private equity investment firm investing in growth companies in the technology and services sectors. Provides equity investments and strategic support to management teams, focusing on businesses in…
Serves institutional investors and management teams of growth companies valued up to £300m in services and technology, including data and insight, managed IT services, software and tech-enabled…
Location
Bowmark Capital
Provides private equity investment in growth-stage companies in technology and business services sectors. Makes minority or majority equity investments and works with management teams to support…
Serves management teams and owners of growth companies valued up to £300m in data and insight, managed IT services, software, and tech-enabled business services, alongside private equity fund…
Location
Private equity investment firm that invests in growing consumer brands with £5–50m in sales. Provides capital alongside brand strategy, digital, talent, and operational support to scale retail, food,…
Serves ambitious founders and leadership teams of fast-growing consumer brands with £5m-£50m sales, particularly purpose-led retail, food, beauty, hospitality and lifestyle businesses.
Location
Growth-focused private equity firm that invests in established companies in technology, healthcare and life sciences, and consumer and business services sectors, providing capital and strategic…
Serves category-leading, profitable growth companies and executive teams seeking minority or majority investment, primarily in technology, healthcare and life sciences, and growth products and…
Location
Cabot Square
Provides private equity investment to small and mid-sized companies. Manages investment funds for institutional investors and supports portfolio companies with growth capital, acquisitions, debt…
Serves small and mid-sized companies in the UK and Western Europe seeking growth, acquisition, expansion or turnaround capital, alongside institutional investors such as pension funds, financial…
Location
GREAT HILL PARTNERS UK LLP
Trajectory
2y · 2024–NowFinancial sub-scores
Computed from 2 filingsProvides private equity investment to high‑growth companies, focusing on sectors including software, financial services, healthcare, consumer, and business services. Partners with management teams to…
Serves institutional limited partners and high-growth businesses seeking private equity investment, focused on software, financial services, healthcare, consumer and business services.
Financial Health
StrongStrong · Hiring · 33% CAGR over 1y
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
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsProvides growth equity investment in defence, space and critical infrastructure technology companies. Focuses on businesses developing systems such as sensing, autonomy, secure communications and…
Targets post-revenue defence, space and critical-infrastructure technology companies scaling across Europe and NATO markets, especially those selling to defence, government or regulated customers.
Financial Health
StableStable · 0% CAGR over 2y
Location
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides private equity investment to mid‑market businesses, partnering with management teams to fund growth, acquisitions and expansion. Manages a portfolio of companies across sectors and provides…
Serves management teams and business leaders at UK mid-market companies across business services, consumer, healthcare, ICT, industrials, media and technology sectors.
Financial Health
DistressedDistressed · 0% CAGR over 2y
Location
MXP Partners
Provides private equity investment and expansion capital to mid‑market growth companies. Sources, executes and manages buyouts, carve-outs, management buyouts and growth investments, and offers…
Serves co-investors and UK/international mid-market growth businesses, including family-owned firms, owner-operators, MBO teams and corporate carve-outs, typically with £50m-£300m enterprise value or…
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
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
Growth Capital Partners
Provides growth capital investment and strategic support to technology and specialist services businesses. Partners with management teams to fund expansion, offering flexible financing, operational…
Serves entrepreneurial management teams and owners of high-growth knowledge economy businesses, especially B2B technology and specialist services firms seeking investment partners.
Location
Chiltern Capital
Provides private equity investment, backing businesses with long‑term capital. Works with management teams to fund expansion and acquisitions, participates in transactions, and supports portfolio…
Serves founders, management teams and advisers for established B2B companies seeking long-term private equity backing, expansion capital or acquisition support across multiple sectors.
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
Provides private equity investment, acquiring and managing stakes in established businesses. Partners with management teams to support expansion, operational development, and international growth…
Serves ambitious management teams and owners of high-growth businesses seeking private equity backing for international expansion across multiple sectors.
Location
Provides private equity investment, partnering with management teams to fund business growth, acquisitions and buyouts. Manages a portfolio of companies across multiple sectors and provides strategic…
Serves ambitious management teams and business leaders at UK mid-market companies seeking private equity backing, across business services, consumer, healthcare, ICT, industrials, media and…
Location
FIREFLY CAPITAL LTD
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsInvests in and manages growth-stage companies operating in asset management, financial technology and commercial property. Provides capital and strategic, managerial and operational support to…
Serves entrepreneurial management teams and growth-stage businesses in asset management, financial technology and commercial property.
Financial Health
WeakWeak · -68% CAGR over 4y
Location
Pears Capital
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsInvests private equity capital in businesses and investment opportunities, typically committing £20m–£200m per deal. Partners with founders, management teams, and investors to support long-term value…
Serves founders, management teams and investors in B2B private equity opportunities requiring £20m-£200m of long-term capital.
Financial Health
StrongStrong · Hiring · 11% CAGR over 4y
Location
TSG CONSUMER UK LLP
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides private equity investment in consumer brands, partnering with founders and management teams to fund and support growth. Focuses on sectors including health and wellness, food and beverage,…
Serves founders and management teams of established consumer brands seeking growth capital, particularly in health and wellness, home and auto, food and beverage, restaurants, and beauty and personal…
Financial Health
StrongStrong · Hiring · 29% CAGR over 2y
Location
Operates as an investment company providing private equity and infrastructure investment, funding and managing stakes in mid‑market businesses and infrastructure assets, primarily in Europe and North…
Targets mid-market companies seeking private equity or infrastructure investment, mainly headquartered in Europe and North America, across consumer, healthcare, industrial, services and software…
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
65 EQUITY PARTNERS MANAGEMENT (UK) LIMITED
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsProvides investment and advisory support to family‑owned and entrepreneur‑led businesses. Invests minority or co‑controlling stakes in mid‑market companies and offers capital for growth,…
Targets established family-owned and entrepreneur-led middle-market businesses seeking growth capital, across consumer, industrials, business services, healthcare and technology in Southeast Asia,…
Financial Health
StrongStrong · Hiring · 122% CAGR over 3y
Location
Constantine
Provides private investment and financing to growing and established businesses, taking long-term stakes and supporting development. Focuses on sectors including energy, logistics and property,…
Targets owners and management teams of growing, established B2B companies seeking long-term investment, especially in energy, logistics and property, including succession, growth funding and partial…
Location
Private equity investment firm that acquires and invests in established businesses, partnering with management teams to support expansion and international growth. Manages a portfolio of companies…
Serves ambitious management teams and owners of high-growth businesses looking to expand internationally, with a B2B focus on companies suitable for private equity partnership.
Location
MGT Ltd
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsManages private equity and venture capital funds, investing in growth-oriented companies across multiple sectors. Provides capital and strategic guidance to portfolio businesses and works with…
Serves investors seeking private equity and venture capital exposure, plus founders and management teams of growth-stage, market-leading companies across high-growth sectors.
Financial Health
StableStable · 0% CAGR over 2y
Location
BDG Partners Limited
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsPrivate equity firm that invests in mid‑market companies, providing capital, strategic guidance and operational expertise to support growth. Partners with portfolio businesses and leverages investor…
Targets mid-market companies and their entrepreneur-owners or management teams seeking a long-term private equity partner for growth.
Financial Health
WeakWeak · Hiring · 19% CAGR over 4y
Location
Provides private equity investment to mid‑market businesses, partnering with entrepreneurs and family-owned companies to fund growth, support acquisitions, and assist management teams with…
Serves successful entrepreneurs and family-owned businesses in Western Europe, particularly the UK, Netherlands, France, Belgium and Ireland.
Location
Private equity investment firm that backs and develops consumer brands. Provides growth capital, strategic guidance and brand expertise to companies typically generating £5–50m in sales, supporting…
Serves ambitious founders and leadership teams of fast-growing consumer brands with £5m-£50m in sales, particularly purpose-led businesses in sectors such as beauty, food, wellness, hospitality and…
Location
Provides investment advisory services for a growth-focused private equity firm, supporting investments in expansion-stage companies in technology, healthcare and life sciences, and growth products…
Targets category-leading growth companies and executive teams in technology, healthcare and life sciences, and growth products and services, including firms seeking minority or majority investment…
Location
Provides private equity investment, backing mid‑market businesses with capital‑intensive or strategic asset characteristics. Invests equity and arranges financing, working with management teams to…
Targets management teams and owners of Western European strategic-asset businesses with enterprise values of €50m–€1bn, across sectors including TMT, transport and logistics, utilities, healthcare…
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
Provides private equity investment, acquiring and partnering with mid‑market companies and supporting management teams to expand and grow internationally. Manages a portfolio of businesses across…
Serves ambitious management teams and high-growth companies seeking to scale into international businesses, across sectors represented by its portfolio.
Location
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How London growth equity companies work and how to sell to them
What they do
Growth equity firms earn revenue from fund management, advisory and performance-linked economics rather than from a conventional product sale. Investor-side pricing usually combines recurring management fees with carried interest if investments return capital above agreed hurdles. Portfolio-company engagement is deal-led: minority funding, diligence, transaction structuring, board participation and follow-on support. The service being sold is capital plus judgement, access and governance. Costs are front-loaded around origination and diligence, while upside depends on later exits, refinancings or secondary sales, so their commercial model is less predictable than a subscription software business.
Who they sell to
Their external market has two sides. On the capital-supply side, most growth equity managers sell fund access to institutional investors, family offices and other private-capital allocators, where investment committees, CIOs, CFOs and legal teams shape approval. On the investee side, they court founders, management teams, chairs and existing shareholders of revenue-generating private companies. Sales cycles are typically relationship-led and multi-month, with adviser introductions, direct outreach and sector networking doing more work than formal procurement. RFP-style processes appear more often in investor mandates than in company-side deal origination.
What they buy
Most London growth equity firms tend to spend on tools and services that improve origination, diligence, compliance and investor servicing. Common categories include CRM, private-market research, workflow management, secure document exchange, fund accounting, portfolio monitoring, valuation support, analytics, cyber security, HR and finance systems. Specialist services matter as much as software: legal advice, tax structuring, audit, commercial due diligence, market mapping, executive search and communications support all sit close to deal activity. Larger managers may also buy pricing, sales effectiveness and hiring support that can be reused across portfolio companies.
Why and how to sell to them
Growth equity buyers tend to evaluate vendors when fundraising pressure rises, a new fund is being launched, portfolio reporting becomes more demanding, or a team moves from partner-led working to a more formal operating model. Leadership hires in finance, operations, investor relations or compliance are useful intent signals, as are new platform roles and a run of new investments. Outbound usually works better when it speaks to specific frictions: faster diligence, fewer manual reporting cycles, cleaner audit trails, better portfolio visibility, or lower operational risk. Generic scale-up language tends to land poorly with investment teams that assess claims for a living.
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 London
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