Private Equity Companies in London: 7,817 Active Firms (2026)
Private equity firms in London invest institutional capital into private companies, from growth-stage businesses to buyouts.
Buying centres tend to sit with investment committees, partner groups, portfolio operations teams and institutional allocator relationships, rather than a single procurement function. London managers in this category serve pension capital, professional investors, family-office-style capital pools and private company owners seeking growth funding, buyout succession or transaction advice. Engagements are high-touch and relationship-led: diligence, valuation, structuring, monitoring and exit planning matter as much as origination. The operating shape is therefore closer to fund management and advisory services than to a volume financial product, with European and international deal activity often handled from a London base.
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London has 7,817 actively trading private equity firms in this list, making the capital’s private-markets cluster a sizeable pool of managers, advisers and portfolio support entities rather than a narrow buyout-only segment. Reported headcount totals 786 people, which points to a visible employment footprint but also to a market where many entities may be management vehicles, advisory companies or compact specialist teams. The cohort contains both operating-scale managers and younger entities, so revenue ranking is a cleaner guide to the largest firms than incorporation age or simple entity count.
Fund managers and investment advisers usually operate around a regulated perimeter shaped by who controls capital, who gives advice and how interests are marketed to professional investors. Buyout and growth-capital work also brings less formal market-structure constraints: limited-partner reporting cycles, valuation governance, conflicts procedures and portfolio-company oversight. London’s role as an allocator and advisory centre means some entities look like fund managers, while others are transaction advisers or operating partners attached to private company acquisitions. That split matters, because regulatory exposure tends to follow the activity performed rather than the private equity label.
Newer entrants appear numerous, but the operating burden favours managers with repeatable fundraising relationships, credible reporting processes and the capacity to support portfolio companies between transactions. Smaller advisory and deal-originating entities may remain compact, while larger managers tend to add portfolio operations, compliance and investor-relations functions as mandates become more institutional. Fee pressure and longer exit timetables have been pushing attention toward value creation inside existing holdings rather than relying on buoyant sale markets. London should remain attractive for cross-border private markets work, though not every entity in the cohort will develop into a full fund-management platform.
What’s in the file
One row per company, 50+ columns — everything below plus each company’s verified directors, from Companies House filings.
Company data
Verified directors — included
Active director count is the full Companies House board, so it can be higher than the number of names listed — we leave out nominee and formation-agent directors, who aren’t worth contacting. It’s blank for the small number of companies whose officers we haven’t fetched yet.
You’re charged per business, not per row. Where a business trades through several registered companies you get every one, and the Group Primary column marks one row per business — filter to those and the count matches your invoice. Rows sharing a website are not automatically one business: franchises and multi-site operators each count separately, and where names don’t prove a relationship we count them apart rather than guess.
7,817
Active firms
2026
184
£5M+ revenue
larger revenue band
2,823
New since 2022
recent incorporations
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Key facts
About 2% of the trading cohort reports turnover above £5M (184 of 7,817 firms) — the rest sits below that revenue band.
36% of the cohort was incorporated since 2022 (2,823 firms), so a sizeable share is in its first few filing cycles.
Private equity buyers tend to split spending across deal origination, due diligence, portfolio operations, finance, compliance and investor reporting.
London’s market includes investment vehicles, fund managers and diversified operating groups, so supplier qualification often needs activity-level segmentation rather than a single private-equity label.
Compliance workload often sits around anti-money-laundering checks, investor onboarding, valuation governance and reporting controls.
Origination-led teams tend to prioritise market mapping and diligence tooling, while portfolio-operations teams usually buy finance, people, procurement and analytics services.
Top London Private Equity companies
Financial 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
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- Biif Holdco06704550
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…
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- Cinven06684110
- CinvenOC431829
Operates a private equity investment firm that raises and manages funds to acquire stakes in businesses across sectors including business services, consumer, financial services, healthcare,…
Serves institutional investors and management teams of growth-oriented businesses, with sector focus on business services, consumer, financial services, healthcare, industrials and TMT.
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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…
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Financial sub-scores
Computed from 5 filingsOperates a private equity investment firm focused on mid‑market European companies. Invests in businesses with enterprise values of about €100m–€500m, partnering with management teams and…
Serves management teams and shareholders of European mid-market businesses with €100m-€500m enterprise value, plus institutional investors seeking private equity exposure.
Financial Health
StrongStrong · Profitable, Growing, Hiring · 9% CAGR over 5y
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Financial sub-scores
Computed from 5 filingsPrivate equity investment firm that acquires and develops businesses with strategic asset bases. Invests in mid‑market companies and works with management to grow cash flows and value, managing a…
Serves institutional investors and management teams of Western European strategic-asset businesses, typically with enterprise values of €50m-€1bn, across sectors including TMT, transport and…
Financial Health
DistressedDistressed
Location
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- TDR Capital06899043
Manages private equity funds that invest in mid‑market companies across Europe. Provides capital and strategic support to portfolio businesses and manages investments across sectors, aiming to grow…
Sells to mid-market businesses across Europe seeking private equity investment, and to institutional investors interested in its funds. Targets established, growing companies and investor audiences…
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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.
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Manages private equity funds that invest in and acquire stakes in mid‑market companies across sectors. Partners with management teams to finance acquisitions, support operational development, and…
Targets entrepreneurial management teams and business owners seeking private equity backing, across sectors including healthcare, business services, industrials, utilities, energy and IT.
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Operates a private equity and fund management business investing in mid‑market software, data, and analytics companies. Partners with management teams to acquire, develop, and scale software and…
Targets mid-market enterprise software, data, analytics and software-enabled technology services companies, working with management teams; also addresses institutional investors seeking private…
Financial Health
N/AN/A
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- Rhône Group04054446
Financial sub-scores
Computed from 5 filingsOperates a private equity investment firm focused on transatlantic middle‑market companies. Invests in industrial and consumer businesses through carve‑outs and partnerships with founding families,…
Serves institutional and private investors, and targets founding families and corporate sellers of transatlantic middle-market industrial and consumer businesses.
Financial Health
DistressedDistressed · -71% CAGR over 4y
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- Charterhouse Capital Partners13054642
Private equity investment firm that raises and manages funds to invest in established companies. Works with management teams to support growth, acquisitions and operational change, and manages a…
Serves ambitious management teams at established businesses seeking private equity backing, including companies in healthcare, manufacturing, technology and consumer-related sectors across multiple…
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- Investindustrial09204466
Private equity investment group that acquires and develops mid‑market companies, primarily in Europe. Provides capital, industrial expertise, and operational support to portfolio businesses across…
Serves institutional investors and owners of predominantly European mid-market private companies seeking private equity backing and international expansion.
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Provides private equity investment in asset‑based businesses across multiple sectors. Supplies equity capital and financing expertise, partners with management teams, and manages investment funds…
Targets management teams and owners of Western European strategic-asset businesses, typically capital-intensive companies with enterprise values of €50 million to €1 billion across sectors such as…
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Financial sub-scores
Computed from 3 filingsProvides investment advisory, private equity and asset management services, managing and structuring investments for institutional clients and funds across sectors including financial services,…
Serves institutional capital providers, including sovereign wealth funds, and companies or assets in financial services, technology, infrastructure, and consumer, media, entertainment and sports.
Financial Health
HealthyHealthy · Growing · 0% CAGR over 2y
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Financial sub-scores
Computed from 2 filingsManages private markets investment funds and strategies focused on small business buyouts, private credit, emerging markets, real estate and energy. Connects institutional and private investors with…
Serves institutional investors, family offices and private investors, plus companies and assets seeking capital and investment managers seeking partnerships in niche private markets globally.
Financial Health
StrongStrong · Hiring · 100% CAGR over 1y
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- Montagu Private Equity07433001
- MontaguOC339798
- Montagu Private EquityOC319972
- Montagu Private Equity09489746
- Montagu Private Equity04641061
Financial sub-scores
Computed from 2 filingsProvides private equity investment and management consultancy, acquiring and supporting companies including corporate carve‑outs, and working with management teams to develop and grow businesses…
Serves institutional investors, corporate sellers and management teams of mid-market businesses in healthcare, financial sector services, critical data, digital infrastructure and education, with…
Financial Health
HealthyHealthy · 0% CAGR over 1y
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- Aurelius Finance Property ONE10898235
Financial sub-scores
Computed from 3 filingsProvides investment management and advisory services focused on private equity, private debt and real estate. Targets mid‑market buyouts and growth investments, sourcing, acquiring and managing…
Targets mid-market and lower-mid-market businesses, private debt opportunities and real estate counterparties, with a focus on companies and assets across Europe and North America.
Financial Health
HealthyHealthy · -3% CAGR over 2y
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Financial sub-scores
Computed from 5 filingsProvides private equity investment, taking majority stakes in established businesses. Invests €100m–€300m of equity and works with management teams to expand through acquisitions, international…
Targets high-performing, cash-flow-generative European businesses seeking majority investment, particularly management-led companies in business services, consumer, education and healthcare sectors…
Financial Health
StrongStrong · Hiring · 17% CAGR over 4y
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Operates as an investment company focusing on private equity and infrastructure. Invests in and manages stakes in mid‑market businesses, builds portfolios, and provides capital and strategic support…
Serves mid-market businesses headquartered in Europe and North America, especially consumer, healthcare, industrial, services and software companies, alongside infrastructure fund investors.
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- Sun European Partners05064740
Financial sub-scores
Computed from 5 filingsProvides private equity investment and advisory services. Acquires and invests in mid‑market companies, partnering with management teams to improve operations, support growth, and develop portfolio…
Serves founders, owners and management teams of defensible mid-market businesses in growing markets, targeting platform companies with €50m-€1bn revenue and smaller strategic add-on acquisitions.
Financial Health
StableStable · -3% CAGR over 4y
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Financial 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
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Financial sub-scores
Computed from 5 filingsPrivate investment firm providing private equity investment in small and mid-sized companies across Europe. Manages concentrated investment portfolios and works with portfolio companies through an…
Targets professional and institutional investors seeking exposure to European small and mid-sized private equity opportunities, including those looking for a hands-on, concentrated investment…
Financial Health
StrongStrong · Growing · 0% CAGR over 4y
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Financial sub-scores
Computed from 3 filingsOperates as a private equity investment firm. Raises and manages investment funds and acquires stakes in businesses, partnering with management teams to develop and grow portfolio companies and…
Serves institutional investors and entrepreneurial European companies, targeting business owners and management teams seeking private equity partnership and growth capital.
Financial Health
StableStable · Hiring · 183% CAGR over 2y
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Manages investment funds that acquire and combine small and medium‑sized businesses in fragmented sectors, building platform companies and overseeing strategy and operations while providing…
Serves international institutional investors seeking SME exposure and entrepreneurial owners of profitable SMEs in fragmented, growing sectors, including healthcare, building compliance, low-energy…
Financial Health
N/AN/A
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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…
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- Fremman Capital12883710
Private equity investment firm focused on lower mid‑market companies. Provides growth and strategic capital to founders and management teams, investing across sectors including business and…
Serves European lower mid-market founders, management teams and successors seeking strategic capital, international growth or consolidation, particularly in business and tech services, healthcare,…
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Financial sub-scores
Computed from 5 filingsPrivate equity firm that invests in information, data and software companies. Acquires majority stakes and provides growth capital and strategic support, focusing on businesses aligned with…
Serves owners and management teams of information, data and software businesses in Northern and Western Europe seeking private equity backing, typically for majority transactions of €30m–€100m.
Financial Health
StableStable · Hiring · 32% CAGR over 4y
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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.
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Financial 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
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Private equity investment firm making majority and significant minority investments in European businesses. Partners with management teams to support growth, acquisitions, international expansion and…
Serves founders, management teams and shareholders of ambitious European businesses seeking majority or significant minority private equity investment, across business services, technology, financial…
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Financial sub-scores
Computed from 5 filingsOperates as an investment and private equity entity, managing funds that invest in companies across sectors including technology, healthcare, infrastructure, and real assets, and supporting portfolio…
Serves institutional investors, private wealth clients and other capital providers seeking exposure to private capital, infrastructure, real estate and life sciences investments; also addresses…
Financial Health
StableStable · -68% CAGR over 4y
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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
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- Bowmark CapitalOC331233
Financial 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
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Financial sub-scores
Computed from 5 filingsProvides private equity investment in businesses that deliver technology‑enabled or knowledge‑based products and services. Undertakes direct and portfolio acquisitions, supplying capital and…
Serves motivated management teams and business owners seeking long-term private equity backing, especially companies offering technology- or know-how-led solutions and services across varied…
Financial Health
HealthyHealthy · 0% CAGR over 4y
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Financial sub-scores
Computed from 5 filingsManages private equity funds and invests equity or equity-type capital in established companies, partnering with management teams to support growth, strategic development, and operational…
Targets mature companies in Central and South Eastern Europe, particularly businesses led by experienced management teams with successful track records seeking equity or equity-type investment.
Financial Health
StrongStrong · Hiring · 19% CAGR over 4y
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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…
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Operates a private equity investment platform providing majority and minority equity, credit, and fund investments in mid‑market companies. Focuses on growth, buyouts, co‑investments, and secondaries…
Serves institutional and private investors, and targets mid-market companies and funds across North America and Europe, including software, consumer, food and beverage, business services, climate and…
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Private equity investment firm that acquires and invests in businesses in the technology, consumer, education and business services sectors, partnering with founders and management teams to grow…
Serves founders and management teams of growth businesses in technology, consumer, education and business services, alongside investors seeking exposure to private equity strategies.
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Financial sub-scores
Computed from 5 filingsPrivate equity investment firm focused on corporate carve-outs. Acquires operating divisions of large corporations and invests in small and medium-sized businesses, partnering with management to…
Targets corporate vendors and management teams of UK and Ireland SMEs being divested by large corporations, alongside institutional investors seeking private equity exposure to corporate carve-outs.
Financial Health
StrongStrong · Growing, Hiring · 28% CAGR over 4y
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Financial sub-scores
Computed from 5 filingsPrivate equity and credit investor focused on companies providing technology, software, and services to government and commercial customers. Acquires and develops businesses in sectors including…
Serves institutional investors seeking private equity and credit exposure, and targets technology and technology-enabled businesses serving government and commercial customers worldwide.
Financial Health
StrongStrong · Hiring · 15% CAGR over 5y
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Financial sub-scores
Computed from 5 filingsManages private equity and real estate investments across Europe. Establishes and acquires platform companies, invests in residential, retail, office and logistics property developments, and oversees…
Sells to institutional investors and partners seeking private equity and real estate exposure, with a focus on Central and Eastern Europe, Germany and selected EU markets. Targets investors backing…
Financial Health
WeakWeak
Location
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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.
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Financial sub-scores
Computed from 5 filingsProvides private equity investment management focused on secondary market transactions. Structures and manages funds and portfolios that acquire interests in existing private equity funds and…
Serves institutional investors, accredited investors, global limited partners and individual retail investors with private equity allocation needs, including flagship funds, separately managed…
Financial Health
HealthyHealthy · Profitable, Hiring · 6% CAGR over 4y
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Private equity investment firm that acquires controlling stakes in companies, primarily in consumer staples, healthcare and essential services. Works with management teams to expand portfolio…
Targets management teams and owners of businesses in resilient, non-discretionary sectors—consumer staples, healthcare and essential services—alongside institutional investors in private equity funds.
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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…
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Financial sub-scores
Computed from 4 filingsProvides private equity investment and turnaround support to mid‑market businesses. Focuses on carve-outs and special situations, supplying capital and working with management teams to restructure…
Serves UK mid-market businesses, particularly management teams and owners in carve-out, special situations, turnaround, transformation and growth scenarios.
Financial Health
StrongStrong · Hiring · 29% CAGR over 2y
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Financial sub-scores
Computed from 2 filingsPrivate equity investment firm focusing on control investments in financial technology and business services companies. Partners with management teams to support growth, providing capital along with…
Serves B2B financial technology and business services companies in Western Europe, particularly market-leading, high-growth businesses with proven models. Targets management teams seeking control…
Financial Health
StrongStrong · Growing · 8% CAGR over 1y
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Computed from 4 filingsProvides private equity and real asset investment management, developing value‑creation plans for portfolio companies and supporting investments through operational expertise, industry analysis, and…
Financial Health
WeakWeak · -78% CAGR over 3y
Location
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Computed from 5 filingsProvides advisory and investment services to private equity investors, focusing on mid‑market companies. Supports management teams with capital investment, transaction structuring and operational…
Targets management teams of UK and Ireland headquartered mid-market businesses in business services, industrials, IT/software, healthcare, education and consumer niches, as well as professional…
Financial Health
WeakWeak · Hiring · 3% CAGR over 4y
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How London Private Equity companies work and how to sell to them
What they do
Private equity firms make money from fund-management fees, carried interest on realised gains, advisory retainers and transaction-related fees. Their product is not a standardised financial account; it is access to private-company investment strategy, deal sourcing, diligence, structuring, governance and exit execution. Pricing usually follows a percentage fee on committed or invested capital, with performance economics agreed in fund documents. Advisory-only entities may charge retainers or success fees around acquisitions, disposals and capital raises. Engagements are long-dated and relationship-based, so revenue quality depends on fundraising cadence, portfolio performance and repeat allocator confidence rather than short sales cycles.
Who they sell to
Most London private equity firms sell to two related markets: capital providers and private-company stakeholders. On the capital side, buyers are typically pension schemes, insurers, endowments, family-office-style allocators, wealth channels and professional investors, with CIOs, investment committees and consultant gatekeepers shaping approval. On the deal side, they engage founders, management teams, corporate sellers, lenders and advisers. Procurement rarely looks like a simple vendor purchase. Fund commitments move through due diligence questionnaires, reference checks, legal review and committee approval, while transaction opportunities tend to come through adviser networks, sector relationships and direct origination.
What they buy
Most private equity firms tend to spend on systems and services that reduce friction in fundraising, diligence, reporting and portfolio oversight. Common software categories include investor CRM, fund accounting, portfolio monitoring, document management, secure data rooms, workflow tools, market intelligence, compliance reporting, cyber security, HR systems and analytics. Service spend often sits with legal advisers, tax advisers, audit, fund administration, valuation support, due diligence providers, communications advisers and recruitment firms. Larger managers may also buy portfolio operations support, procurement benchmarking, technology assessments and finance-transformation help for companies they control, particularly where value creation is more important than financial engineering alone.
Why and how to sell to them
Private equity buyers tend to evaluate vendors when a fundraise is under way, a new fund has closed, reporting demands increase, a portfolio expands, a compliance gap appears or a transaction pipeline becomes harder to manage manually. Outreach works better when it connects to those events rather than a generic efficiency claim. Useful angles include faster investor reporting, cleaner audit trails, lower diligence workload, better visibility across holdings, reduced cyber exposure and more repeatable portfolio-company execution. Credibility matters: sales teams should expect confidentiality concerns, legal review, partner-level scrutiny and a preference for references from comparable regulated or private-markets teams.
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
Related directories
Frequently asked questions
How many private equity companies are there in London?
What counts as a private equity company in this list?
Which are the largest private equity companies in London?
What do private equity companies in London actually do?
How does London private equity compare internationally?
How is this list built and how fresh is the data?
How big are the typical private equity companies in London?
Are these mostly new or established private equity companies?
What SIC codes does this use?
What buying signals should I look for?
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