Summit Partners
Growth equityBoston · Series B–Late Stage · 33 people tracked
Also known as SUMMIT PARTNERS CREDIT ADVISORS, L.P. · Summit Partners Private · SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC · SUMMIT PARTNERS, L.P.
Investment thesis
Summit Partners focuses on investing in category-leading companies with the goal of supporting their continued growth. The firm operates across three main areas: technology, healthcare and life sciences, and growth products and services. It takes a collaborative approach, investing as either a minority or majority partner depending on the situation, and leverages decades of experience to help market leaders scale. Summit emphasizes supporting both the companies and the people who lead them, drawing on its long track record in growth equity investing.
Source: firm website, verified Aug 3, 2026.
Team · 33 people
from the firm's website & public directories
What they invest in
from 30 of 135 portfolio companiesEnterprise Software ×13SaaS ×13AI & Machine Learning ×11Healthtech ×6Developer Tools ×5Cloud Computing ×4Cybersecurity ×4Data & Infrastructure ×3
HQs:United States×26Canada×1United Kingdom×1Singapore×1
Investments · 135 tracked
founders shown can be your intro pathKlaviyo is an AI-powered CRM platform for B2C brands that integrates customer data, marketing automation, customer service, and analytics in a unified solution.
AI & Machine LearningDirect to ConsumerMarketing TechSaaSBoston, US
Andrew Bialecki(Co-founder and Co-CEO)Ed Hallen(Co-founder and Chief Strategy Officer)Tony Weisman(Director)Michael Medici(Director)Benjamin Cook(Executive Officer)Kimberly Hammonds(Director)
Board seatMichael Medici· per SEC Form D
SaaS-based data and marketing platform (NYSE: KVYO)
Immersive Labs provides cybersecurity training and labs where teams practice response to emerging threats and current attacker methods.
AI & Machine LearningCybersecurityEnterprise Software<UNKNOWN>, GB
James Hadley(Founder)in
BoardJack Huffard(Chairman of the Board)
HealthtechTampa, US
Darryl Stephen Shaw(Manager (of the Limited Liability Company Issuer))Craig D. Frances(Manager (of the limited liability company issuer))Barry M. Alpert(Manager (of the limited liability company issuer))Dan W. Lorimer(Manager (of the limited liability company issuer))Mark I. Dorfman(Manager (of the limited liability company issuer))Richard J. Dobkin(Manager (of the limited liability company issuer))
Board seatPeter FrancisCraig Frances· per SEC Form D · $2.1M raise · filed Jan 2015
Broadview Heights, US
Paul Carleton(Director)Len Pagon(Director)William Stuart(Chief Operating Officer)Jesse Lane(Director)Frederick Croft(Executive Chairman)Mark A. Delaar(Director)
Board seatMark deLaar· per SEC Form D · $1.5M raise · filed Nov 2015
Chicago, US
Eion Hu(Director)Peter Chung(Director)Eunji Chung(Director)Peter L. Rottier(Director)Sagit Halpern(Executive Officer)Paul Salay(Executive Officer, Director)
Board seatPeter ChungPeter Rottier· per SEC Form D · $74.5M raise · filed Dec 2020
Boston, US
Michael J. Mahoney(Director)Paul Furer(Director)Gerald P. Townsend(Director)John T. Ruggieri(Director)Steven P. McCarty(Director)Patrick McLaughlin(Director)
Board seatPaul Furer· per SEC Form D · $30.5M raise · filed Jul 2026
Alameda, US
MARK TIES(Executive Officer)SCOTT FERGUSON(Director)JANET DRYER(Executive Officer, Director)PETER ROTTIER(Director)C.J. FITZGERALD(Director)
Board seatScott FergusonPeter Rottier· per SEC Form D · $97.4M raise · filed Feb 2016
Sterling, US
W Daniel Hall(Director)Frank Mendicino(Director)Alan Taetle(Director)Brian Beyer(CEO)
Board seatColin Mistele· per SEC Form D
Pluralsight provides online technology training and workforce development solutions for enterprises and individuals across 180 countries.
Developer ToolsEdTechEnterprise SoftwareFuture of WorkTexas, US
Provides a full spectrum of home health and hospice services across the US; based in Durango, CO.
Acacia designs and manufactures optical networking components and systems, including silicon photonics solutions and coherent optical interconnects for cloud data centers, AI clusters, carrier networks, submarine cables, and satellite communications.
Cloud ComputingData & InfrastructureHardware
Ultra high-speed coherent optical interconnect solutions (acquired by Cisco)
Wireless and wireline network performance solutions
Global leader in Product Information Management solutions enabling retailers and brands to deliver consistent customer experience across sales channels.
Allego is a sales enablement platform that helps revenue teams manage sales content, drive buying experiences, and facilitate continuous learning through mobile technology and interactive video.
AI & Machine LearningEnterprise SoftwareSaaSSales Tech
Yuchun Lee(CEO and Co-Founder)inMark Magnacca(Co-Founder)
Anesthesiology and pain management services (acquired by TeamHealth)
LumaBridge is an oncology-focused contract research organization (CRO) that supports outsourced clinical trials, offering services such as regulatory affairs, clinical operations, data management, medical writing, and biostatistics.
BiotechDigital HealthHealthtech
George Peoples(Founder)
Customer experience management SaaS (acquired by Qualtrics)
Clinical trial data quality/risk-based monitoring company; team led its €6M seed in 2015, later acquired by EQT at a valuation exceeding €500M (Theodorus III).
CookiePro is a consent management platform used by websites to manage cookie consent and privacy compliance.
SaaS
Dandy is a digital dental laboratory that provides AI-powered technology and software to dental practices, offering services including crowns, bridges, dentures, implants, and clear aligners.
AI & Machine LearningHealthtechMedical Devices
Daniel Hanover(Founder)inToni Oloko(Cofounder)
Diagnostic cell culture products (acquired by Quidel)
DuckDuckGo is a privacy-focused search engine and technology company that emphasizes user protection and data privacy in web search and AI services.
Developer ToolsSaaS
Gabriel Weinberg(Founder)in
Mansfield, US
Raj Indupuri(Manager of the Issuer)Bharat Agrawal(Manager of the Issuer)Robert Arnesen(Manager of the Issuer)Michael Mancuso(Manager of the Issuer)Jesse Lane(Manager of the Issuer)Mark deLaar(Manager of the Issuer)
Molecular biology products (acquired by Thermo Fisher Scientific)
Fundraising platform for nonprofits
Rows marked “SEC filing” are inferred from directors named on the company's SEC Form D — public regulatory data, not a portfolio list published by the firm.
Fund performance · per public LP disclosures · 55
as of Jun 2025| Fund | Vintage | Committed | Net IRR | TVPI | DPI |
|---|---|---|---|---|---|
| Summit Partners Europe Growth Equity Fund IV, SCSpLPs: California State Teachers' Retirement System | 2024 | — | -55.3% | 0.77x | — |
| Summit Europe Growth Equity IVLPs: Maine Public Employees Retirement System | 2023 | — | — | 0.71x | — |
| Summit Partners Credit Fund IV L.P.LPs: Sacramento County Employees' Retirement System | 2022 | — | 13.7% | 1.29x | 0.76x |
| Summit Prtnrs Growth Eqty XI ALPs: California State Teachers' Retirement System | 2022 | — | 2.0% | 1.03x | 0.01x |
| Summit Growth Equity XILPs: Maine Public Employees Retirement System | 2021 | — | 5.4% | 1.09x | 0.02x |
| Summit Partners Co-Invest (CS)LPs: Maine Public Employees Retirement System | 2021 | — | 1.8% | 1.07x | — |
| Summit Partners Europe GE IIILPs: California State Teachers' Retirement System | 2021 | — | 15.5% | 1.47x | 0.24x |
| Summit Partners Growth Equity Fund XI, L.P.LPs: California Public Employees' Retirement System, Minnesota State Board of Investment, Pennsylvania Public School Employees' Retirement System +3 more | 2021 | — | 4.6% | 1.08x | 0.02x |
| Summit Partners VC Fd V-A L.P.LPs: California State Teachers' Retirement System | 2021 | — | 5.3% | 1.12x | 0.05x |
| Summit Ptrs Reinvestment FundLPs: California State Teachers' Retirement System | 2021 | — | 15.8% | 1.39x | 0.98x |
| Summit Europe Growth Equity IIILPs: Maine Public Employees Retirement System | 2020 | — | 15.8% | 1.48x | 0.31x |
| Summit Europe Growth Equity III PELPs: Maine Public Employees Retirement System | 2020 | — | — | 0.93x | — |
| Summit Partners Co-Invest (Indigo)LPs: Maine Public Employees Retirement System | 2020 | — | 0.0% | 1.00x | — |
| Summit Partners Co-Invest (Lions)LPs: Maine Public Employees Retirement System | 2020 | — | 14.6% | 1.93x | 0.02x |
| Summit Partners Europe Growth Equity Fund III, SCSPLPs: Los Angeles County Employees Retirement Association, Sacramento County Employees' Retirement System | 2020 | — | 14.4% | 1.47x | 0.25x |
| Summit Partners Venture Capital Fund V A L.P.LPs: Sacramento County Employees' Retirement System, Pension Reserves Investment Management Board | 2020 | — | 5.4% | 1.12x | 0.06x |
| Summit Venture Capital VLPs: Maine Public Employees Retirement System | 2020 | — | 5.8% | 1.14x | 0.12x |
| Summit Venture Capital V PELPs: Maine Public Employees Retirement System | 2020 | — | — | 0.90x | — |
| Summit Growth Equity XLPs: Maine Public Employees Retirement System | 2019 | — | 12.7% | 1.45x | 0.48x |
| Summit Growth Equity X PELPs: Maine Public Employees Retirement System | 2019 | — | 63.7% | 1.28x | 0.13x |
| Summit Partners Co-Invest (Giants-B)LPs: Maine Public Employees Retirement System | 2019 | — | 77.7% | 2.83x | 2.78x |
| Summit Partners Growth Equity Fund X-ALPs: California State Teachers' Retirement System, California Public Employees' Retirement System, Pennsylvania Public School Employees' Retirement System +1 more | 2019 | — | 12.7% | 1.49x | 0.43x |
| Summit Partners Co-Invest (Ironman)LPs: Maine Public Employees Retirement System | 2018 | — | 3.9% | 1.30x | — |
| Summit Partners Credit Fund III L.P.LPs: Sacramento County Employees' Retirement System | 2018 | — | 12.3% | 1.23x | 1.15x |
| Summit Partners Europe Growth Equity Fund II, SCSPLPs: California State Teachers' Retirement System, Sacramento County Employees' Retirement System, Rockefeller Foundation | 2018 | — | 60.5% | 3.27x | 1.84x |
| Summit PartnersLPs: District of Columbia Retirement Board, Pension Reserves Investment Management Board | 2017 | — | 23.1% | 1.97x | 1.61x |
| Summit Partners Growth Eqty Fd IX-A,L.P.LPs: California State Teachers' Retirement System, Andrew W. Mellon Foundation | 2017 | — | 23.6% | 2.16x | 1.34x |
| Summit Growth Equity IXLPs: Maine Public Employees Retirement System | 2015 | — | 23.1% | 1.93x | 1.34x |
| Summit Growth Equity IX PELPs: Maine Public Employees Retirement System | 2015 | — | 45.8% | 2.18x | 0.46x |
| Summit Partners Growth Equity Fund IXLPs: Pennsylvania Public School Employees' Retirement System, Minnesota State Board of Investment, Baltimore City Employees' Retirement System | 2015 | — | 22.7% | 2.01x | 1.37x |
| Summit Partners Venture Capital Fund IV A L.P.LPs: Pennsylvania Public School Employees' Retirement System, California State Teachers' Retirement System, Sacramento County Employees' Retirement System +1 more | 2015 | — | 33.5% | 2.72x | 1.28x |
| Summit Venture Capital IVLPs: Maine Public Employees Retirement System | 2015 | — | 33.5% | 2.55x | 1.25x |
| Summit Venture Capital IV PELPs: Maine Public Employees Retirement System | 2015 | — | 49.1% | 2.17x | 0.81x |
| Summit Partners Credit Fund B-2, L.P.LPs: California State Teachers' Retirement System | 2014 | — | 2.5% | 1.08x | 0.92x |
| Summit Partners Credit IILPs: Pennsylvania Public School Employees' Retirement System, Maine Public Employees Retirement System, Sacramento County Employees' Retirement System +1 more | 2013 | — | 2.1% | 1.06x | 0.98x |
| Summit Partners Credit II PELPs: Maine Public Employees Retirement System | 2013 | — | 5.9% | 1.14x | 0.78x |
| Summit Partners Growth Equity Fund VIII-ALPs: New York City Police Pension Fund | 2012 | — | 25.4% | 2.37x | 2.37x |
| Summit Partners Growth Equity Fund VIII-A LPLPs: Florida State Board of Administration, Pennsylvania Public School Employees' Retirement System, California State Teachers' Retirement System +3 more | 2012 | — | 25.3% | 2.36x | 2.27x |
| Summit Partners Venture Capital Fund III-A, L.P.LPs: Pennsylvania Public School Employees' Retirement System, California State Teachers' Retirement System, Sacramento County Employees' Retirement System +2 more | 2012 | — | 17.8% | 2.28x | 1.95x |
| Summit Growth Equity VIIILPs: Maine Public Employees Retirement System | 2011 | — | 25.3% | 2.13x | 2.05x |
| Summit Growth Equity VIII PELPs: Maine Public Employees Retirement System | 2011 | — | 27.5% | 2.29x | 1.75x |
| Summit Partners Credit Fund, LPLPs: Sacramento County Employees' Retirement System, Baltimore City Employees' Retirement System | 2011 | — | 8.9% | 1.30x | 1.30x |
| Summit Partners Growth Equity Fund VIIILPs: Minnesota State Board of Investment, Hawaii Employees' Retirement System | 2011 | — | 25.3% | 2.33x | 2.24x |
| Summit Partners Growth Equity VIII-ALPs: Los Angeles County Employees Retirement Association | 2011 | — | 25.3% | 2.07x | 1.99x |
| Summit Venture Capital IIILPs: Maine Public Employees Retirement System | 2011 | — | 17.8% | 2.11x | 1.82x |
| Summit Venture Capital III PELPs: Maine Public Employees Retirement System | 2011 | — | 17.6% | 1.95x | 1.81x |
| Summit Partners Europe PE FundLPs: California State Teachers' Retirement System, Andrew W. Mellon Foundation, Rockefeller Foundation | 2009 | — | 18.5% | 2.62x | 2.62x |
| Summit Subordinated Debt Fund IV, L.P.LPs: Minnesota State Board of Investment, California State Teachers' Retirement System | 2008 | — | 9.7% | 1.35x | 1.35x |
| Summit Partners Private Equity Fund VII-A, L.P.LPs: California State Teachers' Retirement System, Hawaii Employees' Retirement System, Rockefeller Foundation | 2006 | — | 10.2% | 1.87x | 1.83x |
| Summit Partners Private Equity Fund VII, L.P.LPs: Los Angeles County Employees Retirement Association | 2006 | — | 10.2% | 1.80x | 1.76x |
| Summit Partners Venture Capital II-A, LPLPs: California State Teachers' Retirement System | 2006 | — | 19.2% | 2.27x | 2.24x |
| Summit Subordinated Debt Fund III, L.P.LPs: Minnesota State Board of Investment, California State Teachers' Retirement System | 2004 | — | 8.6% | 1.44x | 1.42x |
| Summit Ventures VI-A, L.P.LPs: California State Teachers' Retirement System, Andrew W. Mellon Foundation, Rockefeller Foundation | 2001 | — | 15.2% | 2.16x | 2.16x |
| Summit Partners Credit Fund II L.P.LPs: Employees' Retirement System of Rhode Island | — | — | 1.7% | 1.04x | 0.95x |
| Summit Partners Growth Equity Fund IX, L.P. 2017LPs: Baltimore City Employees' Retirement System | — | — | — | 1.10x | — |
Source: public limited-partner disclosures (CalPERS, CalSTRS). Net IRR / TVPI / DPI as reported by the limited partner; a fund's early-year IRR is an interim estimate (J-curve).
Frequently asked questions
- What stage does Summit Partners invest at?
- Summit Partners invests at the Series B, Series C, Growth, Late Stage stages.
- What is Summit Partners's typical check size?
- Summit Partners typically writes checks of $10M – $500M.
- What sectors does Summit Partners focus on?
- Summit Partners focuses on AdTech, AI & Machine Learning, Biotech, Cloud Computing, Consumer, Cybersecurity, Data & Infrastructure, E-commerce, EdTech, Enterprise Software, Fintech, Healthtech, InsurTech, Logistics & Supply Chain, Marketing Tech, Medical Devices, PropTech, SaaS, Sector Agnostic.
- Where is Summit Partners located?
- Summit Partners is headquartered in Boston, US.
- Does Summit Partners lead rounds?
- Yes, Summit Partners leads investment rounds.
Images
Co-investors · 71
Andreessen Horowitz's Strategic Partnerships page describes collaborations that connect its portfolio companies with established institutions to help scale and deploy their technology.
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Craft Ventures is a venture capital firm founded and run by former founders, operators, and investors who provide startups with hands-on support, senior talent access, and proven scaling playbooks.
Bessemer Venture Partners is a venture capital firm that partners with entrepreneurs from early stages through every stage of growth, publishing investment roadmaps across multiple technology sectors.
Accel is a venture capital firm that partners with exceptional founding teams, positioning itself as a first partner to startups globally.
Khosla Ventures is a venture capital firm known for backing bold, contrarian bets in world-class teams that can reshape entire industries.
Greylock Partners is a venture capital firm that backs founders at the earliest stages, often as their first investor before a product exists.
Uncork Capital is a seed-stage venture firm that backs founders at the earliest stage, before their potential is widely recognized.
Insight Partners is a software-focused investment firm that provides capital and operational support to companies from early to late stage, backed by its in-house Insight Onsite operating team.
Felicis Ventures is an early-stage venture capital firm that has backed founders for over 20 years, leading or co-leading the majority of its investments across seed and Series A rounds.
FJ Labs is a venture capital firm specializing in marketplaces and network-effect businesses, having built a large portfolio of marketplace startups with over 30 becoming unicorns.
Bain Capital Ventures is the venture arm of Bain Capital, backing founders from incubation and seed through growth-stage, leveraging Bain Capital's global platform, industry expertise, and network.
▶59 more co-investors
Kleiner PerkinsMenlo VenturesFoundation CapitalEverywhere VenturesSpark CapitalIVP (Institutional Venture Partners)Great Oaks Venture CapitalSapphire VenturesACME CapitalPartech VenturesNextView VenturesCanvas VenturesPractical Venture CapitalElectric CapitalNext47Ribbit CapitalGustoFifth WallMatrixHustle FundUncorrelated VenturesDell Technologies CapitalCostanoa VenturesCiti VenturesGeneral AtlanticLeft Lane CapitalComcast VenturesWebb Investment NetworkTeamworthy VenturesHigh Alpha2xNThird Point VenturesWork-BenchDragonfly645 VenturesHoxton VenturesGigascale CapitalForum VenturesTen ElevenVersion One VenturesH.I.G. Growth PartnersFYRFLY Venture PartnersJump CapitalActon CapitalAdams Street PartnersVista Venture PartnersAtlantic Bridge VenturesGrotech VenturesBasecamp FundANIMO VenturesSV Health InvestorsThird PrimeInformation Venture PartnersCortical VenturesBlockchain Coinvestors AngelList SyndicateCedar FundNasdaq VenturesSystemiq CapitalEvans Capital
Firms observed investing alongside Summit Partners, from public investor directories.
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