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Tom Williams, Angel Investor

Tom Williams

Angel Investor

San Francisco, United States

Tom Williams is a seed investor in San Francisco focused on Software and Artificial Intelligence. Tom Williams

Total investments:
116
Last investment:
Lead investor:
12%

Last updated:

Industries Tom Williams invests in

SoftwareArtificial IntelligenceFinancial ServicesHealth CareSaaS

Stages Tom Williams invests in

SeedSeries ASeries BPre-SeedVenture - Series Unknown

Countries Tom Williams invests in

United StatesCanadaIndia

Round sizes

Seed $1.3M–$6MSeries A $7.9M–$32MSeries B $10M–$57M

Contacts

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Round size

Seed
$1.3M–$6M
Series A
$7.9M–$32M
Series B
$10M–$57M

Investment Focus

Industry

  • Software 21 (18%)
  • Artificial Intelligence 13 (11%)
  • Financial Services 12 (10%)
  • Health Care 11 (9%)
  • SaaS 9 (8%)
See all 138 industries →

Stage

  • Seed 47 (41%)
  • Series A 26 (22%)
  • Series B 12 (10%)
  • Pre-Seed 10 (9%)
  • Venture - Series Unknown 7 (6%)
See all 9 stages →

Country

  • United States 46 (40%)
  • Canada 20 (17%)
  • India 1 (1%)

Investments

CompanyDescriptionRoundLinks
Unito Unito
Unito is taking on a major problem that people are passionate about solving: they make it easier to collaborate across teams. They don't make users learn new tools and change the way they work. By connecting work management tools, they allow managers, cross-functional teams, departments, and entire companies to benefit from seamlesscollaboration and improved communication. The app syncs projects across a number of tools like Trello, Asana, JIRA, GitHub, Wrike, Zendesk & Hubspot. This is a hard problem of semantics, synchronization, and APIs. $20M / Series B / Oct 26, 2022
North One North One
North One developed a banking app that focuses on delivering powerfully simple financial tools to businesses across America. North One's app is available on iOS, Android and desktop. $67M / Series B / Oct 12, 2022
Delphia Delphia
Delphia is building the world's first investment adviser that allows people to invest their data alongside their money in order to improve their investment returns. Delphia is able to forecast the growth and profitability for thousands of companies simultaneously through a series of machine learning models. When Delphia's modeldisagrees with the market, we adjust the weights of our diversified equity portfolio to reflect the confidence we have in our predictions. $60M / Series A / Jun 08, 2022
Heard Technologies Heard Technologies
Heard Technologies is a financial operations platform for mental health professionals in private practice. Founded in 2019 by Andrew Riesen and Victoria Li, Heard helps independent providers start and run their practices with integrated formation, bookkeeping, payroll, and tax software, delivering real-time financial insights. $10M / Series A / May 05, 2022
Possible Finance Possible Finance
Possible Finance is a technology company that provides financial tools needed to manage day-to-day lives. With the help of a mobile app, technology, and data, it provides a friendlier alternative to payday loans that are less expensive, easier to repay, and repairs credit. Applying takes under a minute and anyone can apply since there is no creditcheck.Possible Finance was founded in 2017 and is headquartered in Seattle, Washington. $20M / May 03, 2022
Possible Finance Possible Finance
Possible Finance is a technology company that provides financial tools needed to manage day-to-day lives. With the help of a mobile app, technology, and data, it provides a friendlier alternative to payday loans that are less expensive, easier to repay, and repairs credit. Applying takes under a minute and anyone can apply since there is no creditcheck.Possible Finance was founded in 2017 and is headquartered in Seattle, Washington. $20M / Series C / May 03, 2022
Wave Sports + Entertainment Wave Sports + Entertainment
Wave Sports + Entertainment is a media company built for the next generation of digital superfans.Through a portfolio of over 30 media brands, original content, talent, and a suite of products and services, WSE reaches more than 500M Gen Z and Millennial sports fans on a monthly basis. Our core content is consistently ranked as the most highlyengaged across Snapchat, Instagram, TikTok, Facebook, and YouTube where over 100 million followers engage with our brands. $27M / Series B / Feb 24, 2022
Begin AI Begin AI
Begin AI is a computer software company that provides a decentralized machine learning infrastructure for personalization systems. Begin AI enables developers and data scientists to easily integrate and activate sophisticated personalization algorithms in their applications within hours. It was founded in 2020 by Rima Al Shikh. $500K / Pre-Seed / Jan 31, 2022
Virgo Virgo
Virgo provides the leading video capture, management, and AI analytics platform for endoscopy. We work with top medical centers including The Cleveland Clinic, Mount Sinai, Mass General, and UChicago and have built what we believe is the largest dataset of endoscopy videos – 2.5M+ procedures, growing by ~1M/yr. In early 2025, Virgo introducedEndoDINO, an AI foundation model for endoscopic imaging. Trained on data from over 130,000 procedure videos, EndoDINO achieves state-of-the-art performance in a wide range of GI endoscopy benchmarks. Most importantly, EndoDINO is capable of predicting placebo and drug response rates in patients with Inflammatory Bowel Disease from just a baseline colonoscopy video. This will enable significantly more efficient clinical trials and opens up possibilities for personalized medicine in IBD. $8M / Series A / Jan 05, 2022
Begin AI Begin AI
Begin AI is a computer software company that provides a decentralized machine learning infrastructure for personalization systems. Begin AI enables developers and data scientists to easily integrate and activate sophisticated personalization algorithms in their applications within hours. It was founded in 2020 by Rima Al Shikh. $500K / Pre-Seed / Jan 01, 2022
See all 116 investments →

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FAQ

What does Tom Williams invest in?

Tom Williams invests primarily in Software, Artificial Intelligence and Financial Services startups, most often at Seed and Series A stage. Most of the 116 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.

What is Tom Williams's check size?

Tom Williams typically joins rounds of $1.3M–$6M at Seed, $7.9M–$32M at Series A and $10M–$57M at Series B. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Tom Williams participates in.

How do I contact Tom Williams?

Public channels for Tom Williams include LinkedIn, X (Twitter) and the website linked on this profile. For a verified work email and phone number, create a free Shizune account — contact data is searched across 20+ sources and validated before delivery, so your outreach lands in the right inbox.

When did Tom Williams last invest?

The most recent investment recorded for Tom Williams closed in Oct 2022. Shizune tracks 116 investments in total for this profile, including round sizes, stages and portfolio companies, all sourced from confirmed public funding rounds and refreshed monthly.

Is Shizune's investor data accurate?

Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Sep 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.

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