Summit Partners
Global alternative investment firm
Boston, MA


Overall Rank: 3
Category: Mid/Large Cap Growth
Category Rank: 3

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Founded in 1984, Summit Partners is a global alternative investment firm with capital dedicated to growth equity, fixed income, and public equity opportunities. The Summit Partners’ strategy is grounded in a foundational belief that profitable growth is the most reliable path to building a durable business and creating long-term value. For four decades, the Summit team has focused on partnering with and powering the growth of great people and great companies. As active board members and trusted advisors, and through the engagement of our Peak Performance Group, a purpose-built team that provides on-demand support to our portfolio companies, we work tirelessly to accelerate the growth of our portfolio companies. Summit invests across growth sectors of the economy and has invested in more than 550 companies in technology, healthcare, and other growth industries including financial services, consumer, business services and industrial technology. Summit maintains offices in North America and Europe and invests in companies around the world.


2023 Top Growth Equity Firms

2023 Top 40 Under 40 Growth Investors, Sophia Popova

2023 Top Software Investors, Michael Medici, Len Ferrington

2023 Top Private Equity Firms

2023 Top Women Leaders in Growth Investing, Sophia Popova and Chelsea Jurman

2023 Top 25 Healthcare Investors, Darren Black, Ross Stern

2023 Best Growth Investment Firms

2022 Top Women Leaders in Growth Investing, Sophia Popova

2021 Top 25 Growth Equity Firms

2021 Top 25 Private Equity Firms for Growth Companies

2020 Top 25 Growth Equity Firms

2020 Top 40 Under 40 Growth Investors, Matthew Hamilton, Andrew Collins

2020 Top 25 Software Investors, Michael Medici

2020 Top Women in Growth Equity and Private Equity, Sophia Popova

2019 Top 25 Software Investors, Greg Goldfarb

2017 Top 40 Under 40 Growth Investors, Han Sikkens, Michael Medici, Matthew Hamilton, Peter Francis

2016 Top 40 Under 40 Growth Investors, Michael Medici, Greg Goldfarb, Peter Rottier, Han Sikkens,

2014 Top 10 Pioneers of Growth Equity, Stephen Woodsum

2014 Top 40 Under 40 Growth Investors, Robert Hassell, Matthew Hamilton, Andrew Collins

2014 Top 25 Growth Equity Investors

2013 Top 15 Growth Equity Investors

Key People

Peter Chung, Chief Executive Officer and Managing Director

Peter joined Summit Partners in 1994 and currently serves as the Chief Executive Officer of the firm. During his tenure at Summit, Peter has invested in more than 30 companies, including 18 currently or formerly publicly traded companies. His investment and board experience spans the technology sector and includes a number of innovative, industry leading companies, including Acacia Communications (NASDAQ: ACIA, later acquired by Cisco), AltoCom (acquired by Broadcom), Arista Networks (NASDAQ: ANET), E-TEK Dynamics (NASDAQ: ETEK, later merged with JDS Uniphase), Finisar (NASDAQ: FNSR, later acquired by II-VI), GoldenGate Software (acquired by Oracle Corporation), MACOM (NASDAQ: MTSI), and Ubiquiti, Inc. (NYSE: UI). Peter holds an AB in economics, magna cum laude, from Harvard University and an MBA from the Stanford University Graduate School of Business.

Scott Collins, Chief Operating Officer and Managing Director 

Scott joined Summit Partners in 1996 and currently serves as the Chief Operating Officer of the firm. During his tenure at Summit, Scott has invested in, and served as a board director for, more than 30 companies. In 2001, he founded the firm’s London office, which he managed through 2016. Scott’s investment and board experience spans the technology sector and includes a number of innovative, industry leading companies, including 360T Group (acquired by Deutsche Börse), Acturis Limited (acquired by Astorg), Avast (LON: AVST), Calypso Technology (acquired by Thoma Bravo), Hittite Microwave Corporation (NASDAQ: HITT, later acquired by Analog Devices), Multifonds (acquired by Temenos), Ogone (acquired by Ingenico), PrismHR (acquired by Vensure Employer Services), SafeBoot (acquired by McAfee), Signavio (acquired by SAP) and Veepee. Scott holds an AB in economics, magna cum laude, from Harvard University and a JD, cum laude, from Harvard Law School. 

Key Investments

Acacia Communications: Invested 2013, IPO 2016 (later acquired by Cisco)
Sector: Communications Technology

Acacia Communications is a leading provider of high-speed coherent optical interconnect products.

Avast: Invested 2010, IPO 2018 (later acquired by NortonLifeLock)
Sector: Software

Avast is a global leader in digital security and privacy products.

Calypso: Invested 2016, Acquired by Thoma Bravo 2021
Sector: Software, Financial Technology 

Calypso is a global provider of capital markets software. 

EngageSmart: Invested 2015, IPO 2021 (later acquired by Vista Equity Partners)
Sector: Software, Financial Technology 

EngageSmart provides SaaS-based solutions designed to simplify client engagement. 

E-TEK Dynamics: Invested 1997, IPO 1998, Acquired by JDS Uniphase 2000
Sector: Communications Technology 

E-TEK Dynamics designs and manufactures quality fiber-optic components that enable next-generation optical networks.

FleetCor Technologies: Invested 2002, IPO 2010 (NYSE: FLT)
Sector: Financial Technology & Services, Business Services

FleetCor Technologies is a leading global business payments company.

Flow Traders: Invested 2008, IPO 2015 (AMS: FLOW)
Sectors: Financial Technology 

Flow Traders is a leading electronic ETP liquidity provider focused on high-growth asset classes.

Focus Financial Partners: Invested 2006, Acquired by KKR and Stone Point Capital 2017
Sector: Financial Services, Business Services

Focus Financial Partners is a leading partnership of independent, fiduciary wealth management firms.

HealthSun Health Plans: Invested 2016, Acquired by Anthem 2017
Sector: Healthcare 

HealthSun Health Plans is one of the fastest-growing integrated Medicare Advantage health plans and care delivery networks in Florida.

Integrated DNA Technologies: Invested 2014, Acquired by Danaher in 2018
Sector: Life Sciences

Integrated DNA Technologies (IDT) develops nucleic acid products for the life sciences industry in the areas of academic research, biotechnology, agriculture, medical diagnostics, and pharmaceutical development.

LifeStance Health: Invested 2017, IPO 2021 (NASDAQ: LFST), current portfolio company
Sector: Healthcare 

LifeStance Health is one of the largest providers of virtual and in-person outpatient mental health care in the United States, serving children, adolescents and adults experiencing a variety of mental health conditions.

MDVIP: Invested 2014, Acquired by Goldman Sachs and Charlesbank Capital 2021
Sector: Healthcare 

MDVIP is a U.S. leader in affordable personalized healthcare.

Ogone: Invested 2010, Acquired by Ingenico 2013
Sector: Financial Technology, Business Services

Ogone is a European online payment service provider, delivering fully integrated solutions for managing electronic payments in several domains.

Redzone: Invested 2020, Acquired by QAD 2023
Sector: Software, Industrial Technology

Redzone provides a connected worker platform designed to optimize productivity, safety and quality on the plant floor.

Ubiquiti: Invested 2010, IPO 2011 (NYSE: UI)
Sector: Communications Technology

Ubiquiti develops technology platforms for high-capacity distributed Internet access, unified information technology, and consumer electronics for professional, home and personal use.

Viroclinics-DDL: Invested 2019, Acquired by Cerba Healthcare 2022
Sector: Life Sciences

Viroclinics-DDL is a leading specialty contract research organization, serving the biopharmaceutical community with a broad range of non-clinical research, clinical diagnostic, assay development, laboratory, and clinical trial logistic services.

Capital Responsibility

Investing Responsibly

Their approach to responsible investing is focused in three key areas that they believe are critical components of a growth-focused investment approach: effective corporate governance, proactive risk management, and a commitment to human capital development. They believe responsible investing (“RI”) practices lead to stronger, more productive growth of their business and portfolio companies, and their RI program is focused on incorporating each of these principles into our investment and operational processes.

Growth Through Diversity, Equity and Inclusion

Summit’s focus is on growth: of their people, of their portfolio companies and of the teams with which they partner. The firm believes diverse teams create strong cultures and engaged employees, and seeks to celebrate and promote the positive impact diversity, equity and inclusion have on their investment process and outcomes.

The firm recognizes the importance of and is committed to creating a diverse, equitable and inclusive, performance-driven environment purpose-built to generate the best ideas, fuel innovation and power the professional growth of a diverse employee base both within Summit and across their portfolio companies.

Commitment to our Communities

Community engagement is core to the Summit culture. Together as a firm and independently as individuals, they are committed to serving the communities in which they work, invest and live. Year after year, members of the Summit Partners Network demonstrate dedication to civic engagement by participating in a variety of philanthropic activities and mentorship programs. Summit is proud of their culture of service, and encourages their team to dedicate their time, resources and talents to organizations doing good in the community.