Co-Investment Opportunities: How Retail Investors Can Participate

The Direct Route into Private Deals

In the architecture of private equity, the dominant model is the blind-pool fund, where investors commit capital to a General Partner (GP) for a set period, trusting them to source, manage, and exit deals. Co-investment presents a deviation from this model. It is an arrangement where a GP offers its fund investors, known as Limited Partners (LPs), the opportunity to invest directly into a specific company alongside the main fund investment.

This is not a theoretical instrument, but a widely used method for executing larger transactions. For the LP, the proposition is one of targeted exposure. Rather than allocating to a diversified portfolio of 15-20 companies, the investor can choose to increase their financial stake in a single enterprise they find particularly compelling. This offers a degree of control and portfolio concentration that is absent in a traditional fund commitment.

The rise of digital platforms has extended access to these opportunities beyond the large institutional investors that historically dominated the co-investment space. For qualifying UK retail investors, this presents a route to participate in private equity deals on a selective, case-by-case basis, fundamentally altering the way they can construct their private market portfolios.

Why GPs Offer Co-Investments

The syndication of a deal via co-investment is driven by clear strategic objectives on the part of the GP. A primary motivator is the management of fund concentration limits. A fund’s governing documents typically restrict the percentage of its total capital that can be invested in a single company, often around 10-15%. If a GP finds an attractive deal that requires more equity than this limit allows, co-investment provides a mechanism to secure the transaction without breaching the fund's diversification rules.

Relationship management is another key consideration. Offering co-investment slots to significant LPs is a way to strengthen ties, rewarding key partners with preferential economics. It can also serve as a useful indicator of an LP’s conviction in the GP's strategy, which can be valuable when the GP returns to the market to raise their next fund. The process itself is demanding for the invited LP, who must conduct their own due diligence under a compressed timetable, often just two to four weeks, as the GP has already completed the primary underwriting.

Finally, in a market where financing can be constrained or expensive, bringing in co-investment equity can help a GP de-risk a transaction or increase their bidding power in a competitive auction. It provides a flexible pool of capital that can be called upon to complete a deal efficiently.

The Economic Case: Modifying the "2 and 20" Model

The most direct appeal of co-investment lies in its economic structure. The conventional fee model in private equity involves a 2% annual management fee on committed capital and a 20% share of the profits, known as carried interest, once a minimum return hurdle is met. Co-investments significantly alter this arrangement, typically being offered on a "no fee, no carry" basis, or with substantially reduced terms.

This fee reduction has a material impact on net returns. The absence of a management fee drag and carried interest means that a far greater proportion of the gross return from the underlying asset flows directly to the co-investor. For an asset that performs well, this can result in a significant outperformance compared to investing in the same asset via the main fund.

Evidence from major data providers supports this conclusion. Analysis from organisations such as Cambridge Associates and Preqin has consistently shown that, on an aggregate-net-of-fees basis, co-investment portfolios have historically performed on par with, or slightly better than, primary private equity fund portfolios. The fee advantage provides a structural tailwind to returns that is difficult to ignore, explaining the high demand for these opportunities among informed investors.

Adverse Selection: The Co-Investor's Core Risk

The primary risk faced by any co-investor is adverse selection. This is the legitimate concern that a GP will only offer co-investment opportunities for deals they perceive as less attractive, while keeping the highest-conviction investments exclusively for their main fund. The GP's incentive is to maximise carried interest within their fund, so the theory holds that they might be tempted to syndicate the riskier or lower-return prospects.

Mitigating this risk requires a robust due diligence capability on the part of the LP. An investor cannot simply rely on the GP's own analysis; they must have the internal resources and expertise to independently underwrite the deal and form their own view on its merits within the tight deadline. A key question an LP must ask is: "Why is this deal being offered to me?" Understanding the GP's motivation—whether for fund diversification limits or other strategic reasons—is critical.

Reputation serves as a powerful counterbalance. High-quality GPs recognise that their long-term success depends on maintaining strong LP relationships. Consistently offering suboptimal deals for co-investment would damage their reputation and compromise their ability to raise future funds. Therefore, a strong alignment of interest often exists, but the onus remains on the co-investor to remain disciplined and selective.

Digital Platforms: Opening Access for UK Investors

Historically, co-investment was the exclusive domain of large institutional LPs like sovereign wealth funds, university endowments, and major pension schemes. These organisations have the scale to write large cheques and the resources to maintain dedicated underwriting teams. For individual investors in the UK, direct access was practically impossible. This has changed with the emergence of specialised digital investment platforms.

Firms such as Moonfare, Titanbay, S64, Bite Investments, and iCapital have developed business models designed to close this gap. They operate by aggregating capital from multiple qualified investors to meet the institutional-sized minimums required by GPs, which can often be £10 million or more per co-investment slot. This pooling mechanism is what opens access for private individuals.

These platforms provide a curated menu of opportunities, typically sourced from reputable mid-market and large-cap private equity managers. They also perform their own layer of due diligence on each transaction, providing their clients with investment memoranda and analysis. While this does not replace the need for an investor to form their own judgement, it provides a crucial layer of professional filtering.

The Cross-Border Operating Structure

To facilitate these investments, UK-focused platforms commonly use a well-established cross-border legal structure. The typical model involves the creation of a feeder fund vehicle in a jurisdiction like Luxembourg, often structured as a Reserved Alternative Investment Fund (RAIF) or a Special Limited Partnership (SCSp). These are internationally recognised fund structures designed for efficiency and regulatory clarity.

The process involves the UK investor subscribing for shares or interests in this Luxembourg-based feeder fund. The platform, acting as the manager or advisor to the feeder, then pools all the commitments and invests this capital into the master investment vehicle, which sits alongside the GP's main fund. This structure ensures that from the GP's perspective, they are dealing with a single institutional-grade counterparty, rather than a multitude of smaller investors.

For the UK investor, this model provides a layer of professional administration and governance. The platform and its service providers in Luxembourg handle the capital calls, distributions, and reporting. While the ultimate investment exposure is to a single underlying company, the legal wrapper is that of a managed fund, subject to the relevant European and UK regulatory frameworks.

Investor Suitability and Governance Realities

Access to co-investments via these platforms is strictly limited to investors who meet specific criteria set by the Financial Conduct Authority (FCA). An individual must be able to self-certify as either a 'High Net Worth Individual' (with an annual income exceeding £170,000 or net assets of at least £430,000, excluding their primary residence and pension) or a 'Certified Sophisticated Investor', based on their professional experience in financial markets.

The financial commitments required are also substantial. While lower than institutional minimums, typical entry points for a single co-investment deal start at £100,000. Furthermore, this is a highly illiquid investment class. Capital is locked up for the life of the deal, which is typically five to seven years but can extend to ten or more. There is no established secondary market for these holdings, and investors must be prepared to hold the asset until the GP orchestrates an exit.

In terms of governance, while investors receive detailed financial reporting, their direct influence over the company is minimal. All board seats and decision-making rights are held by the GP. The LP's rights are typically limited to those outlined in a side letter or the fund documentation, focusing on information access and the ability to review valuation reports.

The Co-Investment Market in 2025-2026

The current market environment, characterised by higher borrowing costs and greater economic uncertainty, has direct implications for co-investment activity. With debt financing more expensive and harder to obtain, GPs are increasingly using co-investment equity to bridge valuation gaps and secure transactions. This can lead to an increase in the supply of co-investment opportunities being shown to LPs.

Simultaneously, some traditional institutional LPs have found themselves overallocated to private markets due to the 'denominator effect' (where falling public market valuations increase the percentage weighting of their private holdings). This has constrained their ability to commit to new opportunities, potentially opening the door for non-traditional investors, such as those on wealth platforms, to access high-quality deals that might have been oversubscribed in previous years.

However, competition for the best assets managed by top-quartile GPs remains intense. Investors on these platforms must be prepared for a sporadic and unpredictable deal flow. Opportunities are not "always on" but appear when a GP secures a specific deal, meaning investors need to be patient and ready to act decisively when a suitable transaction arises.

A Tool for Concentrated Portfolio Construction

Co-investment offers a compelling proposition for the right type of investor. The potential for enhanced net returns through significantly reduced fees, combined with the ability to select specific deals, makes it a powerful tool for building a concentrated, high-conviction private equity portfolio. The emergence of UK-facing wealth platforms has made this institutional strategy accessible to a broader pool of qualified investors.

This access does not, however, negate the risks. The requirement for rapid and sophisticated due diligence to counter the threat of adverse selection is paramount. The high minimum commitments, long periods of illiquidity, and the need to meet strict regulatory suitability criteria mean co-investing is appropriate only for a specific subset of experienced investors who understand and can bear the associated risks.