Back in the 18th and 19th century, London was the undisputed global financial hub. While the term Private Equity was not coined back then, people from all over the world were making their trip to the United Kingdom to raise funds for their businesses and their governments.
Looking at the world today, London lost this title to New York as the financial capital, however the number of highly reputable Private Equity firms is still one of the highest with most UK and European focused PE funds having their headquarter in London.
As a former investment professional at a family office and later at a $3 billion private equity fund, I was pretty frustrated of not seeing good quality lists and rankings out there beyond the paid databases of MergerMarket, Pitchbook and Preqin. Having launched a growth consultancy firm which works with many of the leading PE and VC funds, I am excited to present you with a comprehensive list of the top 46 private equity firms in London from a value creation perspective.
The list is categorized by the size of investments Private Equity funds typically make which is usually based on a multiple of the EBITDA metric. The directory starts with lower mid market funds and finishes off with large cap funds, the more prominent buyout funds we usually see in the big media headlines.
In terms of attributes and features for the private equity firms, we focused on the following ones:
- Investment style: Provides information on whether the fund only looks at 100% acquisitions or considers also minority stakes. Investment style talks also about the industry focus, the geography focus and a bit more information on the size of the deals the firms is looking for.
- Portfolio Companies: We did not list every single portfolio company of a fund, however we tried to pick some of the most prominent businesses the private equity firm owned or still owns.
- We are also providing the founding date, the number of investment professionals, assets under management across all of their funds, number of funds, office locations.
- Value Addition Examples tries to pick up on specific examples how the team at the fund helped the business grow, beyond just acquiring the business and holding it and selling it at higher multiples due to a better sentiment in the market.
- Key investment professionals is a section where we focused on individuals who are more vocal and more well known in the media, its not a complete list by any means.
- We conclude the list with recent exits and recent acquisitions and a quote from one of the senior leaders at the firm.
Should you wish to add or change anything, please do not hesitate to get in touch here.
What is Private Equity?
Private equity involves investment funds that directly invest in private companies or engage in buyouts of public companies, resulting in the delisting of public equity. Investors in these funds typically include institutional investors like pension funds, endowments, and high-net-worth individuals. The goal is often to improve the company's financial health and operations, thereby increasing its value before eventually selling the company for a profit. Private equity can also intersect with infrastructure and development, creating opportunities for industries like construction and engineering. For those exploring Civil Engineer jobs in London, private equity-backed projects often bring exciting, large-scale opportunities.
46 Top Private Equity Firms in London and the UK
Private equity firms vary significantly in terms of the size and scope of their investments. Here, we break down the firms into three primary categories:
| Market Segment | Company Value | EBITDA |
| Lower Mid-Market | £10 million to £50 million | £1 million to £5 million |
| Middle Market | £50 million to £500 million | £5 million to £50 million |
| Large Cap | Over £500 million | Over £50 million |
Lower Mid-Market
Lower mid-market private equity firms invest and acquire smaller companies, typically valued between £10 million and £50 million. The target companies here are usually established businesses with a stable revenue and cash flow profile, however they are being operated by a founder who wants to retire or have a liquidity event via a partial exit. The lower mid-market has a lot of businesses which have a great business model but have not implemented levers to grow the business via M&A, international expansion or implementation of technology.
- Investment Focus: Stable companies where there is a lot of room to grow the business by adding a more professional management team, implementing a lot of the marketing and growth stack, international expansion and a buy and build strategy by adding smaller businesses in the same sector to the “platform” acquisition.
- Hands-On Approach: These firms tend to take a hands-on approach, working closely with the existing or new management teams to implement growth strategies, improve operational efficiencies, and build robust business models that can attract further investment.
- Company Value: £10 million to £50 million
- EBITDA: £1 million to £5 million
Mid-Market
Mid-market private equity firms typically invest and acquire companies valued between £50 million and £500 million. These firms focus on businesses that are larger than the lower middle market ones but do not fall into the large buyout funds territory. Its is the most competitive space given a lot of the large buyout funds look at this space and oftentimes have also dedicate mid-market funds looking at it, while the lower middle market funds also aspire to do bigger deals from time to time and thus you also have competing bids from the players in the lower mid-market.
- Investment Focus: Middle market firms often seek companies with established business models and steady revenue streams. They aim to enhance operational efficiency, expand market reach, and drive growth through strategic initiatives.
- Growth Potential: Companies in this range offer high growth potential due to their scalability and the ability to adapt quickly to market changes. Mid-market firms play a crucial role in helping these companies realize their full potential through capital infusion and strategic support. A common strategy is to pick sizable companies with an option to carve out some divisions which are non-core to the business and sell them separately to the core business while growing the core business through bolt-on acquisitions.
- Company Value: £50 million to £500 million
- EBITDA: £5 million to £50 million
Large Cap
Large cap private equity firms manage substantial amounts of capital and typically invest and acquire businesses valued above £500 million. These firms often engage in high-profile buyouts and have the resources to drive significant strategic changes in their portfolio companies.
- Investment Focus: Large cap firms target very well-established companies with significant market presence. Their investments are geared towards long-term value creation through major strategic transformations, mergers and acquisitions, and international expansion. One of the classic reasons to buy established businesses is to prepare them for an IPO and realize value creation by taking a private company public. The same can also be done by looking at undervalued public companies and taking them private.
- Resource Allocation: With vast resources at their disposal, large cap firms can support extensive research and development, large-scale marketing campaigns, and major operational overhauls. Their involvement often leads to transformative changes that position companies for substantial growth.
- Company Value: Over £500 million
- EBITDA: Over £50 million
Often times, large cap private equity funds employ value creation teams inside their funds and often work with operating partners which they can put as advisors into the portfolio companies or parachute them into executive roles. To learn more about the role of operating partners and value creation teams in private equity, please watch the video below:
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Interested in digging deeper into private equity and the art of value creation? Explore this video featuring NUOPTIMA’s founder and CEO, Alexej Pikovsky, as he unveils eight strategies for creating value in private equity:
Conclusion

The private equity landscape in London and the UK is dynamic and multifaceted, spanning lower mid-market, middle market, and large cap sectors. Each firm contributes uniquely to the economy, driving growth and innovation across various industries.
At NUOPTIMA, we work closely with PE funds and their portfolio companies, leveraging our expertise and passion for value creation. This curated list aims to provide CEOs and founders with a comprehensive guide to the top private equity firms in the region, helping them navigate and engage with the PE universe. Book a free discovery call to learn how NUOPTIMA can support your growth and strategic goals in the private equity landscape.