San Francisco · Pre-Seed–Seed · 2 people tracked
Investment thesis
Euclid invests in vertical software founders building industry-specific solutions. The firm emphasizes early-stage support from pre-product through product-market fit, providing high-conviction capital up to $2M with follow-on capacity. The investment thesis centers on founder-market fit and leverages a network of 200+ vertical software operators and experts to accelerate portfolio companies through go-to-market and fundraising.
Source: firm website, verified Aug 5, 2026.
Team · 2 people
from public directories
Founder mafia
2 people who came through Euclid Venture Partners went on to found or lead other companies.
What they invest in
from 7 of 10 portfolio companiesSaaS ×5AI & Machine Learning ×4Healthtech ×3B2B Marketplaces ×1Construction Tech ×1Direct to Consumer ×1E-commerce ×1Fintech ×1
HQs:United States×4
Investments · 10 tracked
founders shown can be your intro pathBy year:2018 · 42017 · 15 dated
New York, US
Thor Ernstsson(Chief Executive Officer, President, Secretary and Treasurer)
Board seatOmar El-Ayat· per SEC Form D · $10M raise · filed Feb 2018
BuildingConnected is a construction bid management platform that connects general contractors, subcontractors, and project owners to streamline bidding workflows and prequalification processes across a network of over 1 million construction professionals.
B2B MarketplacesConstruction TechSaaS
Board seatOmar El-Ayat· per SEC Form D · $344.9K raise · filed Sep 2018
Co-investorsBee PartnersBrick Mortar VenturesCrosslink CapitalHomebrewLightspeed Venture PartnersManta Ray Ventures+4 more
Hungryroot is a personalized meal and grocery service that combines the convenience of meal kits with the variety of a grocery store, allowing customers to set their own budget and receive curated meals and ingredients matched to their dietary preferences.
Direct to ConsumerE-commerceFoodTechNew York, US
Benjamin McKean(President and Chief Executive Officer)
Board seatOmar El-Ayat· per SEC Form D · $23.3M raise · filed Apr 2018
Co-investorsAdvection Growth CapitalCrosslink CapitalGreat Oaks Venture CapitalLerer HippeauLightspeed Venture PartnersStarting Line+3 more
New York, US
David Diaz(Executive Officer)Jay Goldklang(Executive Officer, Director)Joe Guzel(Director)
BoardJed Cairo(Director)inPatrick Chun(Director)
Board seatOmar El-Ayat· per SEC Form D · $7.6M raise · filed Apr 2018
Co-investorsJUXTAPOSE VENTURES
Santa Monica, US
Stephen Estes(Executive Officer, Director)Maximillian Jaffe(Executive Officer, Director)
BoardWilliam Hsu(Director)
Board seatOmar El-Ayat· per SEC Form D · $2.9M raise · filed Oct 2017
Bitewing is a revenue-cycle platform for dental groups that identifies insurance underpayments by tying each claim variance to its source evidence — the EOB line, fee schedule, payer route, and contract period.
FintechHealthtechSaaS
Riviera provides an AI agent (Riley) that captures patient leads from calls, texts, forms, and social DMs, follows up with personalized outreach, and gives staff a prioritized daily action plan.
AI & Machine LearningHealthtechSaaS
A weekly podcast featuring deep dives into vertical AI, with founders and VCs discussing what it takes to build and scale such companies.
AI & Machine LearningMedia & Entertainment
Rows marked “SEC filing” are inferred from directors named on the company's SEC Form D — public regulatory data, not a portfolio list published by the firm.
Portfolio news
latest coverage across their companies
Building Connected · fortuneindia.com · Jul 17, 2026
Hungryroot · fortuneindia.com · Jul 17, 2026
Frequently asked questions
- How many investments has Euclid Venture Partners made?
- Euclid Venture Partners has 5 tracked investments.
- What stage does Euclid Venture Partners invest at?
- Euclid Venture Partners invests at the Pre-Seed, Seed stages.
- What is Euclid Venture Partners's typical check size?
- Euclid Venture Partners typically writes checks of $2M.
- What sectors does Euclid Venture Partners focus on?
- Euclid Venture Partners focuses on AI & Machine Learning, SaaS.
- Where is Euclid Venture Partners located?
- Euclid Venture Partners is headquartered in San Francisco, US.
- Does Euclid Venture Partners lead rounds?
- Yes, Euclid Venture Partners leads investment rounds.
Images
Co-investors · 49
Lightspeed is a global venture capital firm that has spent over two decades backing innovative companies as an early and first investor.
Crosslink Capital is a San Francisco-based venture capital firm investing in enterprise and consumer technology startups across North America.
Great Oaks Venture Capital is a New York-based early-stage investor that partners with founders at the earliest stages of company building across the United States.
Andreessen Horowitz (a16z) is a venture capital firm founded in 2009 by Marc Andreessen and Ben Horowitz, known for pioneering the platform model with a large team of operators supporting founders across stages.
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General Catalyst is a venture capital firm operating as a partnership focused on company building and accelerating the growth of the businesses it backs.
Craft Ventures is a venture capital firm founded and run by former founders and operators who partner with founders to help build and scale technology companies.
New Enterprise Associates (NEA) is a venture capital firm that invests in and provides long-term support to founders building new companies.
Founder Collective is an early-stage venture capital firm focused on seed and pre-seed investments across all sectors.
Uncork Capital (formerly SoftTech VC) is a seed-stage venture firm that invests early in founders, with a focus on AI-native companies building leverage and scale.
FJ Labs is a venture capital firm specializing in marketplaces and network-effect businesses, having built a large portfolio of marketplace startups with over 30 becoming unicorns.
Kleiner Perkins is a venture capital firm that backs founders across technology and life sciences, from early stage through growth.
Menlo Ventures is a venture capital firm that invests in transformative, early-stage AI companies across every layer of the modern AI stack, from applications and middleware to data infrastructure and foundation models.
▶37 more co-investors
KrakenBattery VenturesEniac VenturesACME CapitalFundersClubNextView VenturesFreestyle CapitalBowery CapitalUlu VenturesBonfire VenturesBullpen CapitalRed Swan VenturesMaveronKindred VenturesSocial StartsWinklevoss CapitalPrimary Venture PartnersAngelPadAlleyCorpTCVSpider CapitalThe Finger GroupRocketship.vcZeev VenturesOne Way VenturesOrigin VenturesEnsemble VCMontage VenturesGreatPoint VenturesAngel InvestHC9 VenturesDimension CapitalStrata Capital PartnersGroup 11Krillion VenturesAmara VCCultivian Sandbox Ventures
Firms observed investing alongside Euclid Venture Partners, from public investor directories. Shared companies are the overlap with Euclid Venture Partners's recorded portfolio.
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