Jon Callaghan

Co-Founder & Managing Partner, True Ventures at True Ventures

Reviewed Updated May 1, 2026

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Location Palo Alto, California
Check Size $1M-$5M initial (typical seed/Series A); up to ~$50M lifetime via Select funds
Last Verified Investment Ernesta (Series B) — Mar 2026
Social LinkedIn
Stage Focus
pre-seed seed
Sector Focus
ai hardware consumer biotech climate infrastructure developer-tools wearables deeptech

Background

Jon Callaghan is a co-founder, investor, and managing partner of True Ventures, an early-stage venture capital firm he co-founded in 2005 1. Under his leadership, True was among the first institutional investors in Automattic, Duo Security, Fitbit, HashiCorp, Peloton, and Ring 1. He has been a venture capital investor since 1991 and has founded three companies of his own 2.

Callaghan’s first company, a mountain bike shop in Jackson Hole, was founded when he was a teenager and he ran it for eight years — an operating experience he has cited as the source of his founder empathy 23. He began his institutional venture career as an associate at Summit Partners in the early 1990s, where he first worked alongside his future True Ventures co-founder Phil Black 23. He later joined Greenhouse, AOL’s venture investment and incubation group, and entered the internet market early through CMGI’s @Ventures group in 1996 2.

Callaghan holds a Bachelor of Arts in Government from Dartmouth College and an MBA, with distinction, from Harvard Business School 1.

True Ventures was founded in 2005 by Callaghan together with Phil Black and John Burke; the firm’s first fund — $165 million — was among the largest dedicated seed funds at the time 4. As of October 2020 the firm had raised eleven funds and managed approximately $2.8 billion across an active portfolio that had created more than 25,000 jobs; that announcement included True Fund VII ($465M) and True Select Fund IV ($375M), bringing the firm to roughly $840M in fresh capital 5. By 2025, True Ventures’ AUM was reported at approximately $4 billion across twelve funds, with more than 1,050 founders and 500+ portfolio companies, seven IPOs, and more than 60 acquisitions 16.

Callaghan served as Chairman of the National Venture Capital Association (NVCA) from 2015 to 2016 1. He served on the board of Peloton for approximately ten years, from the company’s early days through January 2025 7.

Stated Thesis

(Self-reported: These represent how Callaghan describes his approach publicly. See Inferred Thesis for analysis of actual investment behavior.)

Callaghan frames the True Ventures mission as being a more aligned partner to founders than the historical venture model allows. On The Twenty Minute VC he said: “We started true, and we actually named the firm true because we thought that entrepreneurs deserved a better, more aligned partner in their cap table and better, more aligned partner on their board” 8. He has stated that the firm’s underlying premise is that “the creative founder is our society’s most precious resource… then their time, the founder’s time, is worth way more than all of the capital we have at true” 8.

His most distinctive public stance is on risk. In the same interview he said: “Our business is about being comfortable with massive amounts of ambiguity and risk” and “We want to try big things. We want to be out in the frontier, and we want to empower those founders to try big things and not worry about failing” 8. He has also been unusually direct about losses: “The dirty little secret of venture capital is half the time we lose, more than half the time” 8.

On bias, he has identified loss aversion as the largest cognitive obstacle for investors: “The biggest bias is loss aversion. So it’s very common. And for any investor to write a check and then begin worrying about losing it” 8.

Speaking about the current AI cycle in 2025, he described his orientation toward duration over speed: “This is yet again one of these magical times for entrepreneurship. Entrepreneurs can very efficiently — from a capital and human standpoint — build valuable applications on top of that,” and separately: “Early-stage investing is more about duration as a feature” 6.

Inferred Thesis

This analysis is based on True Ventures’ own published portfolio communications, Callaghan’s individual board seats sourced from primary press and the firm’s website, and Signal NFX’s listing of his individually-attributed recent rounds 195. True Ventures’ firmwide portfolio exceeds 500 companies and is not exhaustively enumerated in this profile 1. Percentages are not computed because the verified portfolio sample below (16 rows) is too small relative to the firm’s full activity to support statistical claims; the patterns below are qualitative.

Stage discipline. Callaghan operates almost entirely at pre-seed and seed. Signal NFX’s profile for him names initial check sizes in the $1M-$5M range with a $20M “sweet spot” inclusive of follow-ons 9. True’s Select funds (Select I-IV) exist specifically to add follow-on capital — Callaghan has said True can “comfortably” invest up to $50 million in a single company across the lifecycle by combining flagship and select funds 10. The first institutional check, however, is typically at company formation.

Sector composition — extremely broad with a distinctive hardware/consumer-device tilt. Across Callaghan’s verified board seats and named early investments, the most distinctive concentration is in hardware and “novel interface” consumer devices (Fitbit, Ring, Peloton, MakerBot, Glowforge, and most recently the voice-ring Sandbar) — a deeper hardware portfolio than nearly any peer generalist seed fund 110111213. Software is also strongly represented: developer infrastructure (HashiCorp), security (Duo Security), open-source/SaaS (Automattic), and a recent push into AI-native companies (Aisera, Daydream, Pipedream, Pallie AI) 169. True reports 85+ AI-native investments since 2015 16.

The most distinctive pattern: backing categories before they exist. Callaghan’s verified track record includes leading or participating in rounds for companies that defined categories rather than competing within existing ones — Fitbit’s first external round in 2008 (wearables as a category did not exist) 14; Ring’s Series A in April 2014 (smart doorbells/home security as a category did not exist) 11; HashiCorp seed in April 2013 (infrastructure-as-code as a category was nascent) 15; MakerBot (consumer 3D printing as a category did not exist). This is consistent with his publicly stated preference for “massive amounts of ambiguity and risk” 8.

Geographic focus. Callaghan’s individually-attributed recent investments are concentrated in the US (primarily Bay Area), with selective European activity 9.

Check size and round leadership. Callaghan’s recent Signal NFX-listed activity (2020-2026) shows him on a mix of early rounds ($2M-$20M typical) and Select-driven follow-ons up to $90M (Aisera Series D, August 2022) 9. Most recent verified investment as of this profile: Ernesta Series B ($20M, March 2026) 9.

Co-investor patterns. Across the verified subset of Callaghan-attributable deals, frequent co-investors include Foundry Group (Fitbit Series B 2010, Glowforge Series A 2015, MakerBot), Felicis, CRV, First Round, and Upfront (across Ring’s later rounds) 111316. Within True Ventures, Callaghan has co-led or jointly held board seats with co-founder Phil Black, longtime partners Tony Conrad, Adam D’Augelli, Toni Schneider (former Automattic CEO), Kevin Rose, and more recently Puneet Agarwal 17.

Founder profile pattern. Callaghan’s named first checks skew toward technical, operating-experienced founders: James Park (Fitbit), Jamie Siminoff (Ring), Mitchell Hashimoto and Armon Dadgar (HashiCorp), Matt Mullenweg (Automattic), Bre Pettis (MakerBot), Dan Shapiro (Glowforge), John Foley (Peloton). True’s published reasoning on the HashiCorp investment is illustrative: “We were extremely impressed with Mitchell during his time at Kiip, and we stayed close to him as he moved his focus to further building Vagrant and developing a company around it” 15.

Active-investor signal: very strong. Callaghan currently serves on the boards of Pipedream, Daydream, and Ernesta and is actively writing new checks as of 2025-2026 196.

Portfolio

The table below lists notable investments where Callaghan personally led, was named in the announcement, or held the board seat. This is a curated subset of True Ventures’ 500+ portfolio companies 1.

Company Year Stage Sector Status Source
Automattic 2007 Series A Open-source/SaaS Active (private) 18
Fitbit 2008 First external round Wearables IPO 2015; acq. Google 2021 14
Peloton ~2014-2015 Early Connected fitness hardware IPO 2019 (NASDAQ: PTON); Callaghan board seat through Jan 2025 17
MakerBot 2011-08-23 Series A ($10M; Foundry Group led) 3D printing (hardware) Acq. Stratasys 2013 (~$403-604M) 101920
HashiCorp 2013-04 Seed (first investor) Cloud infrastructure IPO 2021 (NASDAQ: HCP); acq. IBM 2024 15
Duo Security 2012-02-28 Series A ($5M; Google Ventures led; True participated) Security (MFA) Acq. Cisco 2018 (~$2.35B) 1102122
Ring 2014-04 Series A (lead) Smart home hardware Acq. Amazon 2018 11
Blue Bottle Coffee — Early Consumer/coffee Acq. Nestlé 2017 (majority stake) 10
Glowforge 2015 Series A Hardware/3D laser Active 13
Goodreads — Early Consumer/books Acq. Amazon 2013 10
BrightRoll — Early Ad-tech Acq. Yahoo 2014 (~$640M) 10
~unknown Evident.io — Early Cloud security Acq. Palo Alto Networks
Zymergen — Early/Select Biotech IPO 2021; subsequently delisted 10
~unknown Madison Reed — Early/Select Consumer/beauty Active
Aisera 2020-12 Series C Enterprise AI Series D Aug 2022 ($90M) 9
Pipedream 2022-05 Series A Developer tools Active; Callaghan board seat 19
Daydream 2024-06 Seed ($50M) AI Active; Callaghan board seat 9
Pallie AI 2025-04 Pre-seed ($2M) AI Active 9
HomeBoost 2024-10 Seed ($4M) — Active 9
Ernesta 2022-11 / 2026-03 Series A ($25M) → Series B ($20M) Consumer Active; Callaghan board seat 9

This table represents 20 verified investments out of True Ventures’ 500+ portfolio companies and Callaghan’s 84 individually-attributed deals on Signal NFX 19. Recent rounds (2020+) are sourced from Signal NFX’s individual-investor tracking; pre-2020 entries are sourced from True’s own announcements and contemporaneous press coverage.

In Their Own Words

On founding True Ventures (The Twenty Minute VC):

“We started true, and we actually named the firm true because we thought that entrepreneurs deserved a better, more aligned partner in their cap table and better, more aligned partner on their board.” — Jon Callaghan 8

On founders as the firm’s central premise:

“If you think that the creative founder is our society’s most precious resource, which I do, and we as a firm believe that, then their time, the founder’s time, is worth way more than all of the capital we have at true.” — Jon Callaghan 8

On embracing risk:

“Our business is about being comfortable with massive amounts of ambiguity and risk.” — Jon Callaghan 8

“We want to try big things. We want to be out in the frontier, and we want to empower those founders to try big things and not worry about failing.” — Jon Callaghan 8

On losing — and the honesty required for early-stage investing:

“The dirty little secret of venture capital is half the time we lose, more than half the time.” — Jon Callaghan 8

On the largest cognitive bias in venture:

“The biggest bias is loss aversion. So it’s very common. And for any investor to write a check and then begin worrying about losing it.” — Jon Callaghan 8

On the simple formulation of the strategy:

“Investing behind great people in great markets.” — Jon Callaghan 8

On the 2025 AI cycle (Crunchbase News interview, October 2, 2025):

“This is yet again one of these magical times for entrepreneurship. Entrepreneurs can very efficiently — from a capital and human standpoint — build valuable applications on top of that.” — Jon Callaghan 6

“Early-stage investing is more about duration as a feature.” — Jon Callaghan 6

“The application layer, historically, has created 5x to 10x the value in market cap terms on top of that capex.” — Jon Callaghan 6

“We have, as an industry, always underestimated the tail and the size of the area underneath the curve.” — Jon Callaghan 6

“I think we are in for a boom, but it will be bumpy.” — Jon Callaghan 6

On wearables and platform shifts (TechCrunch Disrupt SF 2015, in conversation with Fitbit CEO James Park):

“Wearables is one of these — like the Internet, like cloud, like robotics — very, very large horizontal markets.” — Jon Callaghan 14

“The Fitbit vision and frankly the mission is much broader than any one specific device being pitted against another.” — Jon Callaghan 14

“I think what people overlook too is the power of the software and the social network that’s behind Fitbit.” — Jon Callaghan 14

On the smartphone’s coming obsolescence (TechCrunch, December 30, 2025):

“We’re not going to be using iPhones in 10 years. I kind of don’t think we’ll be using them in five years.” — Jon Callaghan 12

“It does one thing really well. But that one thing is a fundamental human behavioral need that is missing from technology today.” — Jon Callaghan, on True’s investment thesis for novel-interface devices 12

What Founders Say

Callaghan’s portfolio is large and many founders have spoken publicly about working with him, but most independently sourced statements from True Ventures portfolio founders cited in this profile come from press interviews and the firm’s own announcement posts (which are biased but citable). One direct exchange with a True portfolio CEO that is on-record:

James Park, co-founder and CEO of Fitbit, at TechCrunch Disrupt SF 2015 — onstage in conversation with Callaghan:

“We didn’t know anything about hardware at the time… in hindsight it was probably something completely dumb for us to do.” — James Park 14

“People trust our products. We have a broad range of products at different price-points, different styles, cross platform compatibility.” — James Park, on building durable consumer hardware after True’s 2008 first check 14

No additional independently sourced founder testimonials specifically about working with Callaghan as a board member were verified at the time of this profile beyond the on-record Park exchange and the firm’s own posts. Future research should specifically search portfolio founder podcast appearances (Jamie Siminoff on 20VC; Mitchell Hashimoto interviews; Matt Mullenweg’s ma.tt blog) for direct quotes about Callaghan personally.

Connections

True Ventures co-founders and partners (firm team page) 17: - Phil Black — Co-founder, Partner. Met Callaghan at Summit Partners in the early 1990s 3. - John Burke — Co-founder of True Ventures (2005) 4. - Tony Conrad — Partner, True Ventures (founder of about.me, sold to AOL). - Adam D’Augelli — Partner, True Ventures (author of multiple True portfolio investment posts including HashiCorp) 15. - Toni Schneider — Partner, True Ventures; former CEO of Automattic 2006-2014 (a True portfolio company). - Kevin Rose — Partner, True Ventures (founder of Digg). - Puneet Agarwal — Partner, True Ventures (frequent co-author with Callaghan of public AI-thesis writing) 6. - Mike Montano, Keerthi Nalabotu, Natasha Sharma, Rohit Sharma, Soul Dayan — Investment team.

Notable board seats (current and past): - Peloton Interactive — Board member from early-stage through January 2025 (approximately ten years) 7. - Pipedream — Board member (current) 1. - Daydream — Board member (current) 1. - Ernesta — Board member (current) 9.

Prior employers: - Summit Partners (early 1990s, associate) — first colleague: Phil Black 23. - Greenhouse (AOL’s venture investment and incubator group) 2. - CMGI / @Ventures (joined 1996) — one of the early internet-era institutional incubators 2.

Industry leadership: - Chairman, National Venture Capital Association (NVCA) — 2015-2016 1.

Frequent co-investors (from verified rounds): - Foundry Group (Brad Feld) — Fitbit Series B (2010), MakerBot, Glowforge 16. - Felicis, CRV, First Round, Upfront — multiple Ring rounds 11. - Polaris Partners, Radar Partners, CNET — Automattic Series A 2007 18.

Sources

  1. True Ventures team page, “Jon Callaghan,” accessed May 2026. https://trueventures.com/team/jon-callaghan/↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩

  2. Stanford NVCA Venture Capital Symposium 2019, speaker page for Jon Callaghan, accessed May 2026. https://conferences.law.stanford.edu/vcs2019/speakers/john-callaghan/↩↩↩↩↩↩↩

  3. VC Sheet, “Jon Callaghan (True Ventures) — VC Breakdown & Contact,” accessed May 2026. https://www.vcsheet.com/who/jon-callaghan↩↩↩↩

  4. Crunchbase News / True Ventures secondary press confirming True I as $165M (2006) with John Burke as co-founder, accessed May 2026. https://www.crunchbase.com/organization/true-ventures↩↩

  5. True Ventures blog, “Powering Founders With Two New Funds and Additional Platform Resources” (Fund VII $465M + Select IV $375M; ~$2.8B AUM at announcement), October 14, 2020. https://trueventures.com/blog/true-fund-vii-select-fund-iv↩↩

  6. Crunchbase News, “From Web 2.0 To AI: How True Ventures Is Backing The Next Big Shift” (Jon Callaghan & Puneet Agarwal interview), October 2, 2025. https://news.crunchbase.com/ai/true-ventures-ai-investments-jon-callaghan-puneet-agarwal/↩↩↩↩↩↩↩↩↩↩↩

  7. Peloton Interactive investor relations, “Jon Callaghan — Board Member” (board service ending with January 16, 2025 director-vacancy filling per SEC filing), accessed May 2026. https://investor.onepeloton.com/board-member/jon-callaghan/↩↩↩

  8. The Twenty Minute VC (Harry Stebbings), “20VC: Why Investors Have The Biggest Problem with Bias, Why Our Job Is To Maximise Risk & Why It Is Essential To Get Good at Losing with True Ventures Founder, Jon Callaghan,” transcript via deciphr.ai, accessed May 2026. https://www.deciphr.ai/podcast/20vc-why-investors-have-the-biggest-problem-with-bias-why-our-job-is-to-maximise-risk–why-it-is-essential-to-get-good-at-losing-with-true-ventures-founder-jon-callaghan↩↩↩↩↩↩↩↩↩↩↩↩↩

  9. Signal NFX, “Jon Callaghan’s Investing Profile — True Ventures Managing Partner,” accessed May 2026. https://signal.nfx.com/investors/jon-callaghan↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩

  10. TechCrunch, “True Ventures has two new funds totaling $635 million to plug into a wide range of startups,” October 30, 2018. https://techcrunch.com/2018/10/30/true-ventures-has-two-new-funds-to-invest-totaling-635-million-to-plug-into-a-wide-range-of-startups/↩↩↩↩↩↩↩↩

  11. True Ventures blog, “Congratulating the Ring Team” (True led Ring Series A April 2014; Amazon acquisition announced February 2018), April 12, 2018. https://trueventures.com/blog/congratulating-the-ring-team↩↩↩↩↩

  12. TechCrunch, “The phone is dead. Long live . . . what exactly?” (Jon Callaghan interview), December 30, 2025. https://techcrunch.com/2025/12/30/the-phone-is-dead-long-live-what-exactly/↩↩↩

  13. GeekWire, “Glowforge raises $9M from Foundry Group, True Ventures, MakerBot founder to build 3D laser printers,” 2015. https://www.geekwire.com/2015/glowforge-raises-9m-from-foundry-group-true-ventures-makerbot-founder-to-build-3d-laser-printers/↩↩↩

  14. TechCrunch, “Fitbit CEO And True Ventures’ Jon Callaghan On The Big Fitness Opportunity” (TechCrunch Disrupt SF 2015 fireside chat; True invested in Fitbit’s first external round in 2008), September 22, 2015. https://techcrunch.com/2015/09/22/fitbit-ceo-and-true-ventures-jon-callaghan-on-the-big-fitness-opportunity/↩↩↩↩↩↩↩

  15. True Ventures blog, “Welcoming HashiCorp” (by Adam D’Augelli; True seed-funded HashiCorp in April 2013 as first investor), December 10, 2014. https://www.trueventures.com/blog/welcoming-hashicorp↩↩↩↩

  16. GeekWire, “How this reluctant Fitbit investor almost missed a $1.6 billion windfall” (Foundry Group co-investor in Fitbit Series B 2010 alongside True Ventures), 2017. https://www.geekwire.com/2017/reluctant-fitbit-investor-almost-missed-1-6-billion-windfall/↩↩

  17. True Ventures team page (full team listing), accessed May 2026. https://trueventures.com/team/↩↩

  18. Matt Mullenweg / Automattic press coverage of Series A (April 2007, Polaris Venture Partners, True Ventures, Radar Partners, CNET), accessed May 2026. https://ma.tt/tag/venture-capital/↩↩

  19. TechCrunch, “MakerBot Takes $10 Million In Funding From Foundry Group, Angels,” August 23, 2011. Accessed May 2026. https://techcrunch.com/2011/08/23/makerbot-takes-10-million-in-funding-from-foundry-group-angels/ — MakerBot’s $10M Series A announced August 23, 2011, led by Foundry Group with Bezos Expeditions, True Ventures, and RRE Ventures participating alongside a dozen angel investors. ↩

  20. AllThingsD, “MakerBot Raises $10 Million for 3D Printers,” August 23, 2011. Accessed May 2026. https://allthingsd.com/20110823/makerbot-raises-10-million-for-3d-printers — Confirms $10M Series A on August 23, 2011 led by Foundry Group; RRE Ventures, True Ventures, and Bezos Expeditions participated. ↩

  21. AnnArbor.com, “Ann Arbor startup Duo Security lands $5 million from investment group including Google,” February 28, 2012. Accessed May 2026. https://www.annarbor.com/business-review/ann-arbor-startup-duo-security-lands-5-million-from-investment-group-including-google/ — Duo Security’s $5M Series A announced February 28, 2012, led by Google Ventures with True Ventures and Resonant Venture Partners participating. ↩

  22. PE Hub, “Duo Security Seals $5M,” February 28, 2012. Accessed May 2026. https://www.pehub.com/duo-security-seals-5m/ — Confirms Duo Security $5M Series A on February 28, 2012 with True Ventures and Resonant Venture Partners as prior backers in the 2010 seed round. ↩