Jeff Heer

Co-Founder & Chief Scientist, Ridge AI; Co-Founder, Trifacta (acq. Alteryx, 2022); Jerre D. Noe Endowed Professor of Computer Science & Engineering, University of Washington at independent

Reviewed Updated May 1, 2026

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Location Seattle, WA
Check Size Angel checks; specific size not publicly disclosed
Last Verified Investment Ridge AI (Pre-seed) — Apr 7, 2026
Social @jheer.org
Stage Focus
pre-seed seed
Sector Focus
data-infrastructure data-visualization developer-tools AI analytics SaaS

Background

Jeff Heer is the Jerre D. Noe Endowed Professor of Computer Science & Engineering at the University of Washington’s Paul G. Allen School, where he co-directs the Interactive Data Lab 1. He holds B.S., M.S., and Ph.D. degrees in Computer Science from UC Berkeley, and served as faculty at Stanford from 2009 to 2013 before joining UW 1. His academic awards include MIT Technology Review’s TR35 (2009), a Sloan Fellowship (2012), the ACM Grace Murray Hopper Award (2016), the IEEE Visualization Technical Achievement Award (2017), and induction into both the IEEE Visualization Academy (2019) and the ACM CHI Academy (2021) 1.

Heer’s lab has produced an unusually influential set of open-source data visualization tools, including D3.js (with his former student Mike Bostock, now founder of Observable), the Vega and Vega-Lite declarative visualization grammars, the Mosaic framework, and predecessors Protovis and Prefuse 12. These libraries are widely used across industry and academia.

In October 2012, Heer co-founded Trifacta with UC Berkeley professor Joe Hellerstein and Stanford Ph.D. Sean Kandel, commercializing joint research on interactive data wrangling 2. Trifacta raised more than $200M across four rounds — $4.3M Series A (Accel, 2012), $12M Series B (Greylock, December 2013), $25M Series C (Ignition Partners, May 2014), and $48M Series D (Columbia Pacific, Deutsche Börse, Ericsson, Google, New York Life, January 2018), plus a $35M raise in February 2016 2. Heer served as Trifacta’s Chief Experience Officer alongside his UW faculty role. Alteryx completed its acquisition of Trifacta for $400 million in all-cash in February 2022, integrating the technology into Alteryx Designer Cloud 23.

In April 2026, Heer emerged from stealth as Co-Founder and Chief Scientist of Ridge AI, an AI-native embedded analytics platform for B2B SaaS, alongside CEO Ellie Fields (former Tableau executive) 456. Ridge AI raised a $2.6M pre-seed led by Madrona Venture Group (Tim Porter, Mark Nelson) with TheFounderVC and angels Chris Stolte (Tableau co-founder), Adrien Treuille (Streamlit), Elissa Fink (former Tableau CMO), Jeff Hammerbacher (Cloudera), and Carlos Guestrin (Stanford AI Lab) 456.

Stated Thesis

Heer has not published a formal investment thesis. He is not primarily positioned as an angel investor — his public role is as an academic and operator-founder. The categories he has invested in and built within (data visualization, analytics, data wrangling, end-user data tooling) directly mirror the technical surface area of his 20+ year research career.

Inferred Thesis

This analysis is based on a very small set of publicly verifiable angel-style investments. Heer’s profile is closer to that of a builder/scientist who operates inside companies rather than a prolific outside investor. Within the research window, only one current cap-table position was independently confirmed against primary press sources, and that position is as a Co-Founder rather than a passive angel. Sample size is too small for percentages.

Verified cap-table positions / operating roles:

  • Ridge AI (AI-native embedded analytics for B2B SaaS; Pre-seed, April 7, 2026) — $2.6M led by Madrona Venture Group, with TheFounderVC and angels Chris Stolte, Adrien Treuille, Elissa Fink, Jeff Hammerbacher, and Carlos Guestrin. Heer is Co-Founder and Chief Scientist 456.
  • Trifacta (founded October 2012; acquired by Alteryx for $400M, February 2022) — Co-Founder and former Chief Experience Officer; raised $200M+ from Accel, Greylock, Ignition, Cathay Innovation, Columbia Pacific, Deutsche Börse, Ericsson, Google, and New York Life 23.

Sector observations (qualitative): Heer’s entire public investing and founding record sits in data visualization, data wrangling, and analytics tooling. There is no evidence of activity outside this domain. He pattern-matches with the Stanford/UC Berkeley “data tools mafia” — Hellerstein (Trifacta co-founder, Berkeley), Hanrahan (Stanford / Tableau), Stolte (Tableau), Hammerbacher (Cloudera), Treuille (Streamlit), Guestrin (Turi / Stanford AI Lab) — and tends to back or co-found companies inside that network.

Co-investor patterns: The Ridge AI cap table is the clearest data point: it reads as a near-complete reunion of senior figures from the prior generation of data-tooling companies (Tableau, Trifacta, Streamlit, Cloudera) backing the next one 45.

Notable gap: Beyond Ridge AI and the Trifacta founding cap table, no other independently verifiable angel checks were located in the research window. Heer’s primary identity is academic researcher and operator-founder, not investor; his angel footprint appears genuinely small rather than poorly documented.

Portfolio

Company Year Stage Source
Trifacta (co-founder) 2012-10 Series A → Series D (acq. Alteryx, 2022) 23
Ridge AI (co-founder) 2026-04-07 Pre-seed 456

This table represents the publicly confirmed cap-table positions identified within the research window. Both are founder-level positions rather than outside angel checks. Crunchbase lists Heer primarily as Co-Founder & CXO of Trifacta and does not surface a meaningful angel portfolio under his name 7.

In Their Own Words

No first-person quotes specifically about Heer’s investment philosophy or decision criteria were located within the research window. Heer’s public commentary is concentrated on visualization research, tools, and pedagogy rather than investing.

Representative academic framing — on the gap between visualization research and analyst practice, in a 2022 Allen School news note covering his IEEE VIS Test of Time Award for “Enterprise Data Analysis and Visualization: An Interview Study”:

“[The paper] helped the visualization community better understand challenges facing data analysts.” — Allen School News paraphrase of award citation, October 18, 2022 8

This is paraphrased, not a direct quote, and is included here only to convey the substance of Heer’s research orientation. No verbatim investing-philosophy quotes were located.

What Founders Say

No independently sourced founder testimonials specifically about working with Jeff Heer as an angel investor were located within the research window. Press coverage of Ridge AI names him as a Co-Founder rather than an outside backer, so the “investor working relationship” framing does not directly apply.

Connections

  • Co-Founder & Chief Scientist, Ridge AI (2026-present) — alongside CEO Ellie Fields (former Tableau executive) 456
  • Co-Founder & former CXO, Trifacta (2012-2022) — alongside Joe Hellerstein (UC Berkeley) and Sean Kandel (Stanford Ph.D.); company acquired by Alteryx for $400M, February 2022 23
  • Jerre D. Noe Endowed Professor, University of Washington Paul G. Allen School (2013-present) — co-directs the Interactive Data Lab 1
  • Former Stanford faculty (2009-2013) — overlapped with the broader Stanford visualization community including Pat Hanrahan’s group (which produced Tableau) 12
  • Education: UC Berkeley (B.S., M.S., Ph.D., Computer Science) 1
  • Co-creator, D3.js — with former student Mike Bostock (now founder of Observable) 1
  • Co-creator, Vega / Vega-Lite / Mosaic — declarative data-visualization grammars and frameworks widely used in industry 12
  • Co-investor cluster (Ridge AI cap table, April 2026) — Chris Stolte (Tableau), Adrien Treuille (Streamlit), Elissa Fink (former Tableau CMO), Jeff Hammerbacher (Cloudera), Carlos Guestrin (Stanford AI Lab / Turi) 456
  • Lead VC relationship: Madrona Venture Group — led Ridge AI pre-seed (Tim Porter, Mark Nelson) 45
  • Prior VC relationships (Trifacta) — Accel (Series A lead), Greylock (Series B lead), Ignition Partners (Series C lead), plus Cathay Innovation, Columbia Pacific, Deutsche Börse, Ericsson, Google, and New York Life 2
  • Awards — TR35 (2009), Sloan Fellowship (2012), ACM Grace Murray Hopper Award (2016), IEEE Visualization Technical Achievement Award (2017), IEEE Visualization Academy (2019), ACM CHI Academy (2021) 1

Sources

  1. Paul G. Allen School of Computer Science & Engineering, “Jeffrey Heer, Professor,” University of Washington, accessed May 2026. https://www.cs.washington.edu/people/faculty/jeffrey-heer/↩↩↩↩↩↩↩↩↩↩

  2. Wikipedia, “Trifacta,” accessed May 2026. https://en.wikipedia.org/wiki/Trifacta↩↩↩↩↩↩↩↩↩↩

  3. Amalgam Insights, “Alteryx Acquires Trifacta: Considerations for DataOps, MLOps, & the Analytic Community,” February 9, 2022, accessed May 2026. https://amalgaminsights.com/2022/02/09/alteryx-acquires-trifacta-considerations-for-dataops-mlops-the-analytic-community/↩↩↩↩

  4. GeekWire, “Data visualization all-stars unveil Ridge AI with $2.6M to fix the analytics problem for SaaS apps,” April 7, 2026, accessed May 2026. https://www.geekwire.com/2026/data-visualization-all-stars-unveil-ridge-ai-with-2-6m-to-fix-the-analytics-problem-for-saas-apps/↩↩↩↩↩↩↩↩

  5. SuperbCrew, “Ridge AI Raises $2.6 Million In Pre-Seed Funding,” April 2026, accessed May 2026. https://www.superbcrew.com/ridge-ai-raises-2-6-million-in-pre-seed-funding/↩↩↩↩↩↩↩↩

  6. Ridge AI, “Team” page, accessed May 2026. https://www.ridgedata.ai/team↩↩↩↩↩↩

  7. Crunchbase person profile, “Jeffrey Heer — Co-Founder & CXO @ Trifacta,” accessed May 2026. https://www.crunchbase.com/person/jeffrey-heer↩

  8. Allen School News, “Jeffrey Heer wins Test of Time Award at IEEE VIS for helping the visualization community better understand challenges facing data analysts,” October 18, 2022, accessed May 2026. https://news.cs.washington.edu/2022/10/18/jeffrey-heer-wins-test-of-time-award-at-ieee-vis-for-helping-the-visualization-community-better-understand-challenges-facing-data-analysts/↩