What investors have funded DuckDuckGo and how much equity do they hold?

Checked on January 13, 2026
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Executive summary

DuckDuckGo has been funded by a mix of institutional venture firms and prominent individual backers — names repeatedly reported include Union Square Ventures, OMERS Ventures, GP Bullhound, Impact America Fund, Thrive, and notable individuals such as Brian Acton, Tim Berners‑Lee, Mitch Kapor and Freada Kapor Klein [1] [2] [3]. The company disclosed a large, mainly secondary financing in 2020–2021 that brought roughly $100M into the private market transaction, but DuckDuckGo is privately held and the precise equity percentages owned by those investors are not publicly disclosed in the sources available [2] [3] [4].

1. Institutional investors named in reporting

Multiple data providers and trade press identify a recurring core of institutional investors in DuckDuckGo: Union Square Ventures is cited as an early Series A investor [5], OMERS Ventures is listed among the “key investors” and a co‑lead in later rounds [6] [1], GP Bullhound and Impact America Fund are reported as participants in the June 2021 Series B/secondary activity [1] [2], and other commercial data aggregators (PitchBook, Crunchbase, CB Insights, Tracxn) enumerate additional firms such as Thrive, K5 Global, Avenir Growth Capital and others across DuckDuckGo’s funding history [7] [8] [9] [5].

2. High‑profile individual and philanthropic backers

Beyond institutional VCs, reporting repeatedly name‑checks several technology figures who invested or participated in the secondary: WhatsApp co‑founder Brian Acton, web inventor Tim Berners‑Lee, and tech‑philanthropy figures Mitch and Freada Kapor are explicitly listed in DuckDuckGo’s own accounts of the 2020/2021 transaction and by press recounting that deal [3] [2]. These individuals are described as supporters of privacy and mission‑aligned investors rather than as controlling owners [3].

3. The big 2020–21 secondary infusion and what it changed

DuckDuckGo disclosed that it “picked up $100M+ in mainly secondary investment” in the 2020 period, a transaction that allowed early employees and some early investors to sell shares while bringing new capital (and new names) onto the cap table; TechCrunch, Forge and DuckDuckGo’s own blog and related coverage list OMERS, GP Bullhound, Impact America Fund, Thrive and the individual names as participants in that round [2] [3] [6]. Data platforms differ on total historical raise figures — PitchBook lists $72M, Tracxn and others report around $113M or higher depending on which transactions are counted — reflecting variance in how primary rounds, bridge financings and secondary market trades are recorded [7] [5] [6].

4. How much equity do those investors hold? — the limits of public reporting

None of the sources reviewed publish audited cap‑table percentages for DuckDuckGo’s investors; because much of the 2020–21 activity was secondary (existing shareholders selling) rather than new primary issuance, the transaction redistributed ownership rather than necessarily creating a single clear new large institutional stake reported publicly, and DuckDuckGo remains privately held so exact investor percentages are not disclosed in filings accessible to the public [2] [4]. Some secondary‑market advisory sites and unofficial writeups offer estimates or ranges (for example speculative percentages attributed to OMERS or others), but those are not documented in the primary reporting and should be treated as unverified [10]. Trade coverage and marketplaces (Forge, EquityZen, Nasdaq Private Market) confirm the presence of these investors and the fact that shares trade in secondary markets for accredited investors, but they do not provide a sourceable breakdown of percentage ownership by investor [11] [6] [4].

5. Bottom line: who, and what remains unknown

The who is clear: a mix of venture firms (Union Square Ventures, OMERS Ventures, GP Bullhound, Impact America Fund, Thrive, and others named across PitchBook/Tracxn/CB Insights) plus prominent individual backers (Brian Acton, Tim Berners‑Lee, Mitch/Freada Kapor) participated in DuckDuckGo’s funding history and the 2020–21 secondary transaction [1] [3] [7]. The how‑much is not public: exact equity stakes, dilution over multiple rounds, and post‑secondary cap‑table percentages are not disclosed in the reporting and cannot be authoritatively calculated from the available public sources [2] [4]. Any detailed percentage claims in secondary writeups should be treated as estimates unless supported by DuckDuckGo or regulatory/transaction filings, which are not present in the provided sources [10].

Want to dive deeper?
Which venture firms led DuckDuckGo’s early rounds and what terms were reported?
How do secondary transactions (like DuckDuckGo’s 2020–21 deal) affect employee and founder ownership?
What public filings or disclosures would reveal precise cap‑table percentages for a private company like DuckDuckGo?