Summit Partners
UnclaimedAt a Glance
- Check Size
- $25M – $500M
- Stage
- Series B+
- AUM
- $42B
- Sectors
- Enterprise, Digital Health, Consumer +2
- Founded
- 1984
- HQ
- Boston, MA
About Summit Partners
Summit Partners was founded in 1984 and has grown to become one of the largest and most established growth equity firms globally, with over $42 billion in capital raised across its funds. Based in Boston with offices worldwide, Summit focuses on growth-stage investments in technology, healthcare, and other rapidly expanding sectors. The firm typically invests in companies with proven business models, strong management teams, and clear paths to market leadership.
Summit's investment approach emphasizes operational partnership, providing portfolio companies with strategic guidance on scaling, market expansion, and value creation initiatives. The firm has a strong track record across multiple decades and market cycles, with notable exits including Snowflake's public offering and the sales of companies like Ultimate Software and Solera. What distinguishes Summit is its global reach, deep sector expertise across multiple verticals, and systematic approach to value creation that combines strategic guidance with operational support through their extensive network of industry experts and advisors.
Investment Thesis
“Partners with growth-stage companies across technology and healthcare, providing capital and operational expertise to accelerate their trajectory.”
Leadership Team
Roe Stamps IV and Stephen G. Woodsum founded Summit in 1984 and are both listed on the firm's site as cofounders and former managing directors. Peter Y. Chung is managing director and chief executive officer, and has signed Summit's growth equity fund filings continuously since Fund VIII in 2010. Adam H. Hennessey is managing director and chief financial officer, David H. Schiller is managing director and chief investor relations officer, and Han Sikkens is managing director and head of Europe, based in London.
Form D filings also name Scott Collins, Martin Mannion, Bruce Evans, Thomas Roberts, Thomas Jennings, John Carroll, Craig Frances and Darren Black as executive officers of successive growth equity funds. The firm employs more than 225 professionals across five offices, including a Peak Performance Group that provides on-demand operating support to portfolio companies.
Sector Focus
Investment Stage
Notable Portfolio Companies
Fund History
- Summit raises across three fund families: growth equity, venture and credit.
- SEC Form D filings trace the growth equity line from Summit Partners Growth Equity Fund VIII, which came to market in 2010 with a $3.0 billion target, through Fund IX, which opened in August 2015 at a $3.18 billion target and had sold $2.35 billion of interests by August 2016.
- Fund X closed the full $4.5 billion it offered after a February 2019 first sale, and Fund XI closed its entire $7.75 billion offering within days of an October 2021 first sale, the largest single pool in firm history.
- Fund XII began filing in September 2024 across US, parallel and Luxembourg SCSp vehicles, alongside dedicated XII Access feeders for US and international investors.
- Each generation also carries a parallel Growth Equity Investors partnership for firm-affiliated capital.
- Summit writes $10 million to $500 million per company and has backed more than 550 businesses across four decades.
SEC Fund Filings
- Vehicles filed, last 24 months
- 17
- Latest filing
Summit Partners filed a Form D for 17 fund vehicles between Sep 30, 2024 and Sep 29, 2026. The 8 most recent:
| Fund vehicle | Source |
|---|---|
| Summit Partners Co-Invest (Cipher), L.P. | SEC Form D, filed |
| Summit Partners Reinvestment Fund II-A, L.P. | SEC Form D, filed |
| Summit Partners Reinvestment Fund II-B, L.P. | SEC Form D, filed |
| Summit Partners Co-Invest (Fury), L.P. | SEC Form D, filed |
| Summit Partners Co-Invest (Catalyst), L.P. | SEC Form D, filed |
| Summit Investors XII, LLC | SEC Form D, filed |
| SUMMIT INVESTORS X, LLC | SEC Form D, filed |
| SUMMIT INVESTORS XI, LLC | SEC Form D, filed |
A Form D is the notice a fund files with the SEC when it raises money in a private offering. Feeder funds, parallel funds and SPVs each file their own, so the count measures filing activity, not the number of flagship funds.
Source: SEC EDGAR Form D filings for pooled investment funds, original filings only (amendments excluded). Our filing data starts Jul 1, 2024. Vehicles are matched to Summit Partners by fund name and checked against the sponsor address and named principals on each filing; offering amounts are not shown. Each “SEC Form D” link opens an EDGAR full-text search for that vehicle’s exact name, where the filing itself is listed. See every new fund filing on the Form D Radar.
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Frequently Asked Questions
What stage does Summit Partners invest at?
Summit Partners primarily invests at the Series B+ stage. This means they focus on companies that are at various stages of growth.
Where is Summit Partners located?
Summit Partners is headquartered in Boston, MA. Many of their portfolio companies are also based in this region, though they invest across geographies.
What sectors does Summit Partners focus on?
Summit Partners focuses on investments in Enterprise, Digital Health, Consumer, Fintech, SaaS. Their portfolio reflects deep expertise and networks within these sectors.
What is Summit Partners's typical check size?
Summit Partners's typical investment check size ranges from $25M to $500M. Actual amounts may vary based on the stage, sector, and specific opportunity.
How much does Summit Partners have under management?
Summit Partners manages approximately $42B in assets under management (AUM) across their funds.
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