Andrew Collins, Len Ferrington, Michael Medici and Colin Mistele Named to GrowthCap's Top Software Investors of 2026 List

Four Managing Directors on Summit Partners’ Technology Team — Andrew Collins, Len Ferrington, Michael Medici and Colin Mistele — have been named to GrowthCap's “Top Software Investors of 2026” list.

In determining this year’s top software investors, GrowthCap evaluated the depth of each nominee's software investing experience, their AI capabilities and expertise, the types of investments they have made, and the role they have played in supporting the companies they back.

Summit Partners' Technology Team seeks to invest in leading growth companies across the technology sector, from software, AI and infrastructure to semiconductors and services. Within software, the team focuses on both the application and infrastructure layers, cybersecurity, fintech and vertical SaaS. The team's 2026 software investments include Stay22, a content monetization platform powered by AI-driven decisioning; Runpod, an AI developer cloud; Keyfactor, a provider of trust infrastructure for the machine identities that devices, workloads and AI agents depend on; and Socure, an AI-native identity verification and fraud prevention platform.

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Andrew Collins

Andy Collins is a Managing Director and the Co-Head of Summit Partners' Technology Team. Over his tenure, Andy has led or played a significant role in 31 Summit investments, building deep expertise across cybersecurity; horizontal, vertical and infrastructure software; e-commerce marketplaces and communications technology. Andy focuses on partnering with businesses whose proprietary data and core workflows can support durable advantage as AI reshapes their markets.

Investment experience
‍Andy’s current investment and board experience includes Furnished Finder, Jungle Scout, Keyfactor, NinjaOne, Output, Podium, Recharge, Socure and Striim. His prior investments and directorships include InfoArmor (acquired by Allstate Corporation), Jamf (NASDAQ: JAMF, acquired by Francisco Partners), NetWitness (acquired by EMC Corporation), Red Canary (acquired by Zscaler), Reverb.com (acquired by Etsy), RiskIQ (acquired by Microsoft), Uber (NYSE: UBER), Ubiquiti (NYSE: UI, formerly Ubiquiti Networks), Wildfire Interactive (acquired by Google) and Winshuttle (acquired by Symphony Technology Group).

Read Andy’s perspectives on Identity Authentication in the Digital Economy and on Building Trust Infrastructure in the AI and Quantum Era.

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Len Ferrington  

Len Ferrington is a Managing Director and the Co-Head of Summit Partners' Technology Team. Since joining the firm in 2006, he has led or played a significant role in 14 Summit investments, developing deep experience in application software, robotics and automation, cybersecurity, and technology that aims to enhance education, talent and workforce productivity. Len is particularly interested in software companies where AI is changing not only what the product does but how customers use it.

Investment experience
‍Len’s current board directorships include Keeper Security, StackAdapt and Ylopo. His prior board and investment experience includes Access Information Management (acquired by Berkshire Partners), Aeryon Labs (acquired by FLIR Systems), Ascentis (acquired by UKG), Redzone (acquired by QAD), Ruffalo Noel Levitz, Smartsheet (NYSE: SMAR), Teaching Strategies (acquired by KKR), Trident University International (acquired by Perdoceo Education Corporation) and Ubiquiti (NYSE: UI, formerly Ubiquiti Networks).

Read more on Len’s work with StackAdapt and Keeper Security.

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Michael Medici  

Michael Medici is a Managing Director on Summit Partners' Technology Team. Since joining the firm in 2005, Michael has led or played a significant role in 21 Summit investments, partnering with numerous high-growth companies across the technology landscape and building deep sector experience across both the application layer — e-commerce enablement, marketing automation, industrial technology and supply chain — and the infrastructure that supports it, including DevOps and, more recently, AI compute. Today, as AI reshapes the landscape, Michael focuses on companies positioned where those two layers meet.

Investment experience
‍Michael currently serves on the boards of Fundraise Up, Klaviyo (NYSE: KVYO), Later, MacStadium, Runpod and Sifted. His prior investments and directorships include Acacia Communications (NASDAQ: ACIA, later acquired by Cisco), Accedian Networks (acquired by Bridge Growth Partners), Anesthetix (TeamHealth), Clarabridge (acquired by Qualtrics), Diagnostic Hybrids (acquired by Quidel), Fermentas International (acquired by Thermo Fisher), Hiperos (acquired by Opus Global), Logi Analytics (acquired by Marlin Equity Partners), Mi9 Retail (acquired by General Atlantic), NetBrain Technologies (acquired by Blackstone) and Telerik (acquired by Progress Software).

Read Michael’s perspective on Backing the AI Builders.

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Colin Mistele  

Colin Mistele is a Managing Director on Summit Partners' Technology Team. Since joining the firm in 2011, he has led or played a significant role in 26 Summit investments. Over his tenure, Colin has invested in category-leading software businesses across vertical SaaS, security, fintech and digital consumer platforms, often as the first institutional investor in companies that were already growing and profitable. Today, Colin is focused on how AI is reshaping these sectors and working to back the management teams leading their markets through this platform evolution.

Investment experience
‍Colin's current board and investment experience includes CoderPad, DocuSketch, Foxen, Instrumentl, Jobber, Jungle Scout, Keyfactor, NinjaOne, onXmaps, Podium, Stay22 and TextExpander. His prior directorships and investments include Advanced Cell Diagnostics (acquired by Bio-Techne), Delphix (acquired by Perforce), Gainsight (acquired by Vista Equity Partners), InfoArmor (acquired by Allstate Corporation), Jamf (then NASDAQ: JAMF, acquired by Francisco Partners), PriceLabs (acquired by Onex Private Equity), Red Canary (acquired by Zscaler, NYSE: ZS), RiskIQ (acquired by Microsoft), TeleSign (acquired by BICS), TSheets (acquired by Intuit, NASDAQ: INTU) and Uber (NYSE: UBER).

Read Colin’s perspectives on Building Trust Infrastructure in the AI and Quantum Era.

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Read more about Andy, Len, Michael and Colin and the full list of honorees on GrowthCap’s 2026 Top Software Investors List.

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The GrowthCap Top Software Investors of 2026 award reflects GrowthCap's opinion, not that of Summit Partners, and is based on GrowthCap's evaluation of each honoree's career and investing experience using information Summit provided through August 31, 2026. Summit submitted a nomination and, upon selection, paid a publishing and copyright fee to promote the award. There can be no assurance that other providers would reach the same conclusion. Full selection methodology and honoree list are available at www.growthcapadvisory.com.

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