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Jeff Seibert

North America, California, United States, San Francisco

Description

Jeff Seibert is a highly regarded angel investor with a distinguished background as a serial entrepreneur and product leader. As the co-founder of Crashlytics, a mobile development platform acquired by Twitter in 2013, and subsequently the co-founder and CEO of Digits, an AI-powered finance platform, Seibert brings deep operational expertise and a founder-first perspective to his investment activities. His journey from building and scaling successful technology companies to backing the next generation of innovators has positioned him as a sought-after early-stage partner in Silicon Valley.

Seibert primarily focuses on seed-stage investments, leveraging his experience to identify and support companies building foundational software infrastructure, developer tools, fintech solutions, and productivity platforms. His investment thesis often revolves around backing exceptional founders who are tackling complex problems with elegant, scalable solutions. He is known for providing more than just capital, offering strategic guidance, product insights, and access to his extensive network, which is invaluable for nascent startups navigating early growth challenges.

His investment portfolio is remarkably strong, featuring an impressive list of companies that have achieved significant valuations. As of early 2024, Seibert has made over 40 angel investments, with a significant number of these companies evolving into multi-billion dollar enterprises. Notable early-stage investments include stakes in industry leaders such as Figma, Plaid, Notion, Vercel, Retool, Mercury, Brex, Deel, and Rippling. These investments underscore his ability to spot transformative potential at its earliest stages, often contributing to highly competitive seed rounds. His typical initial check size for these promising ventures ranges from approximately $50,000 to $250,000, reflecting his commitment to providing meaningful early capital to high-potential startups.

Investor Profile

Jeff Seibert has backed more than 56 startups, with 1 new investments in the last 12 months alone. The firm has led 0 rounds, about 0% of its total and boasts 16 exits across its portfolio.

Investment Focus Highlights

  • Concentrates on Seed, Series A, Pre Seed rounds (top funding stages).
  • Majority of deals are located in United States, Israel, Australia.
  • Strong thematic focus on Software, SaaS, FinTech.
  • Typical check size: $50K – $250K.

Stage Focus

  • Seed (63%)
  • Series A (21%)
  • Pre Seed (7%)
  • Series C (2%)
  • Series Unknown (2%)
  • Convertible Note (2%)
  • Angel (2%)
  • Series E (2%)

Country Focus

  • United States (93%)
  • Israel (2%)
  • Australia (2%)

Industry Focus

  • Software
  • Saas
  • Fintech
  • Information Technology
  • Artificial Intelligence (Ai)
  • Machine Learning
  • Financial Services
  • Legal Tech
  • Developer Apis
  • Social Media
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FAQ

Frequently Asked Questions

Learn who this investor regularly partners with—both firms and angels—and explore their latest activity.

Who does Jeff Seibert frequently co-invest with?

Chang Corporation
North America, New York, United States, New York
Co-Investments: 45
General Catalyst
North America, Massachusetts, United States, Cambridge
Co-Investments: 7
Baseline Ventures
North America, Wyoming, United States, Jackson
Co-Investments: 6
Founder Collective
North America, Massachusetts, United States, Cambridge
Co-Investments: 4
Felicis
North America, California, United States, Menlo Park
Co-Investments: 4
Y Combinator
North America, California, United States, Mountain View
Co-Investments: 5
SV Angel
North America, California, United States, San Francisco
Co-Investments: 8
Boston Seed Capital
North America, Massachusetts, United States, Boston
Co-Investments: 7
Flybridge
North America, Massachusetts, United States, Boston
Co-Investments: 4
Alumni Ventures
North America, New Hampshire, United States, Manchester
Co-Investments: 3

Which angels does Jeff Seibert often collaborate with?

WC
North America, New York, United States, Manhattan
Shared Deals: 49
DS
North America, Massachusetts, United States, Boston
Shared Deals: 4
BL
North America, Florida, United States, Miami
Shared Deals: 3
David Chang
North America, Massachusetts, United States, Boston
Shared Deals: 4
JL
North America, Massachusetts, United States, Boston
Shared Deals: 4
AD
North America, California, United States, San Francisco
Shared Deals: 3
AR
North America, California, United States, Mountain View
Shared Deals: 3
NR
North America, California, United States, San Francisco
Shared Deals: 6
AG
Asia, Delhi, India
Shared Deals: 3
AA
North America, Vermont, United States, Burlington
Shared Deals: 3

What are some of recent deals done by Jeff Seibert?

Finch Legal

New York, New York, United States

Finch Legal is a software development company that supports personal injury law firms.

Information TechnologySoftware
SeedApr 16, 2025

Monitor your patents and get instant alerts on potential infringements.

Artificial Intelligence (AI)Business IntelligenceIntellectual PropertyLegal TechMachine LearningMarket ResearchProduct ResearchProduct SearchSemantic Search
Pre SeedJun 27, 2023
Amount Raised: $4,000,000

IPR-tested prior art search. The ultimate patent invalidation tool.

Artificial Intelligence (AI)Business IntelligenceIntellectual PropertyLegal TechMachine LearningMarket ResearchProduct ResearchProduct SearchSearch EngineSemantic Search
Pre SeedJun 27, 2023
Amount Raised: $4,000,000
Patented.ai

Boston, Massachusetts, United States

Patented.ai provides unique, high-value IP products for innovators, funds, and litigators.

Business IntelligenceDRMEnterprise ApplicationsInnovation ManagementIntellectual PropertyLegal TechMarket Research
Pre SeedJun 27, 2023
Amount Raised: $4,500,000
Ghost Message

New York, New York, United States

Ghost Message enables users to send an anonymous message to pals in a group chat to flirt, make jokes, or pose queries.

MessagingSocial Media
SeedMar 15, 2023
Amount Raised: $8,000,000
T2

Berkeley, California, United States

T2 is a social networking platform.

Blogging PlatformsSocial Media
SeedJan 13, 2023
Amount Raised: $1,100,000
Mural

New York, New York, United States

Instant global payments & invoicing. Eliminate delays and fees. Pay vendors and contractors with stablecoin-based payments.

FinTechMobile PaymentsVirtual CurrencyWeb3
SeedAug 23, 2022
Amount Raised: $5,600,000
CryptoTaxCalculator

Surry Hills, New South Wales, Australia

CTC helps you sort out your crypto tax nightmare. Built for crypto natives with complex on-chain activity.

BlockchainComplianceComputerCryptocurrencyFinTechSoftware
SeedMar 1, 2022
Amount Raised: $2,904,359
Radicle Science

San Diego, California, United States

Radicle Science is a health tech company that offers an accelerated, non-FDA route to drug validation.

Dietary SupplementsHealth CaremHealthWellness
SeedJan 7, 2022
Amount Raised: $5,999,716
InSpace

Burlington, Vermont, United States

SaaS - InSpace is a video conferencing platform that brings engagement and seamless collaboration to virtual and hybrid environments.

EducationSoftware
SeedJun 8, 2021
Amount Raised: $6,000,000