Eighteen48 Partners Closes €175M First Tranche for Mid-Market Fund

Eighteen48 Partners, a London-based alternative asset manager, has secured €175 million in the first close of its debut private equity fund, with a final target of €350 million. The vehicle is designed to back European mid-market buyouts sourced exclusively through independent sponsors,deal finders who identify and negotiate acquisitions before raising capital, rather than drawing from a pre-committed pool.

The first tranche attracted a diverse group of backers, including existing clients, institutions, family offices, and ultra-high-net-worth individuals. Since 2020, Eighteen48 has deployed over €200 million into independent-sponsor transactions, meaning this fund formalizes a strategy the team has been executing for six years, rather than marking a true debut.

How the Independent Sponsor Model Works

Independent sponsors occupy a distinct niche in private equity. Traditional buyout firms raise a blind-pool fund and then hunt for deals. In contrast, independent sponsors first identify a specific acquisition target and then approach capital providers to fund it. This model gives investors full visibility into deal terms before committing capital, avoiding the typical trust-based arrangement where a general partner deploys funds over several years with limited oversight.

For the sponsors, the risk is carrying deals without guaranteed financing,a challenge that limits the model to experienced operators with strong networks. For capital providers like Eighteen48, the reward is access to off-market transactions that never enter competitive auctions, where most mid-market private equity deals are priced. Oliver Mayer, Eighteen48’s head of private equity, described these relationship-driven deals as a structural advantage that drives the firm’s returns.

A Model Crossing the Atlantic

Independent sponsors have been a staple of the American private equity landscape for over a decade, but the model is relatively new in Europe. Several factors are accelerating its adoption: experienced dealmakers leaving established firms to operate independently, family offices seeking more direct exposure to private companies, and a broader reconfiguration of European capital markets pushing investors toward flexible structures. The EU’s own efforts to overhaul startup funding have further normalized the idea that European companies need access to a wider range of capital providers, not just traditional fund managers.

According to IPEM, the private equity industry body, Europe now has a growing ecosystem of independent sponsors, and more deals of this type are expected in 2026 as the broader fundraising environment for traditional blind-pool funds remains challenging. Nearly 70% of European private equity professionals surveyed said they plan to deploy more capital this year, and 87% described 2026 as a good year for dealmaking,the most bullish sentiment in five years.

Eighteen48’s peers in the independent-sponsor-focused segment include Kartesia, which manages nearly €6 billion in private credit strategies, and Idinvest Partners, a pan-European mid-market investor. Eighteen48 distinguishes itself by having invested directly in independent-sponsor deals for six years before launching a formal fund, giving it a track record that most first-time fund managers lack.

The Founders and Their Vision

Julien Sevaux, the firm’s founding partner and chief executive, previously co-founded Stanhope Capital in 2004. He and his co-founders established Eighteen48 in 2019 as a “next-generation private investment office,” a platform managing capital across public and private markets for families and institutions. The private equity fund is the first vehicle Eighteen48 has raised externally, a step reflecting both the growth of its independent-sponsor deal pipeline and the increasing institutional appetite for European mid-market exposure.

The fund’s €350 million target is modest by global private equity standards but substantial for the independent-sponsor segment, where deal sizes typically range from €10 million to €150 million. If fully raised, it would make Eighteen48 one of the larger dedicated capital providers for independent sponsors in Europe,a position that, if current dealmaking momentum holds, could prove well-timed.

Sevaux said the fund “formalises a highly differentiated strategy” the firm has been running for several years. In a market where most private equity firms compete for the same auctioned assets, Eighteen48 is betting that the deals no one else sees are the ones worth paying for.