Summit Partners: Four Decades of Growth Equity in Technology and Healthcare

Founded in 1984, Boston-based Summit Partners manages over $44B across growth equity, venture and public equity — and has backed 550+ companies including Uber, McAfee and Socure.

The firm

Summit Partners, founded in 1984, is a Boston-based global growth equity firm that partners with category-leading, profitable growth companies. The firm manages $44B+ in assets under management and has invested in 550+ companies worldwide. Its portfolio companies have completed 175+ public offerings and 250+ strategic sales or mergers. Summit was started by Roe Stamps, Stephen Woodsum and Gregory Avis — the first two having previously worked at TA Associates — and is today led by CEO Peter Chung.

Thesis and sweet spot

Summit is a classic growth-equity investor: it backs later-stage companies that have already reached profitability and market leadership, then provides capital for growth, recapitalisations and management buyouts. It invests as a minority or majority partner, collaborating with management teams rather than replacing them. Typical equity cheques run $30 million to $500 million, with a venture programme writing $5 million to $30 million cheques for earlier-stage bets. Sector focus spans technology, healthcare, life sciences and other growth industries, and the firm operates offices in Boston, Menlo Park, London and Mumbai.

Notable portfolio

Summit's track record reads like a history of growth tech: early investments in Uber, cybersecurity leader McAfee, Avast, enterprise software company Infor, trading firm Flow Traders and logistics platform ShipMonk. In healthcare, it backed LifeStance Health through its IPO, and more recently made a strategic growth investment in Socure, the AI-native identity verification company serving more than 3,000 customers. The firm runs three business lines — growth & venture, credit and public equity (the latter via its 2015 acquisition of Alydar Capital).

People

The firm is led by CEO Peter Chung, with a global partnership team spanning Boston, Menlo Park, London and Mumbai. Summit's team includes deep sector specialists in technology and healthcare — reflecting a model where investment partners stay close to portfolio companies well beyond the cheque.

Programs, credits and how to engage

Summit Partners does not run an accelerator programme or startup credit scheme — it is a growth-stage equity firm investing $30 million-plus. Founders typically engage through direct outreach, a warm introduction, or by joining a Summit-backed company: the firm's portfolio job network is a practical way in.

Why it matters for founders

If your company is profitable, growing fast and aiming for category leadership in tech or healthcare, Summit Partners is one of the few firms that has done this exact job — backing market leaders to scale — for over forty years. It is not a seed investor, but for growth-stage founders it is a top-tier minority partner.