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645 Ventures Portfolio Companies

Investor actively backing innovative startups and growth-stage companies across various industries and funding rounds.

Last updated: June 2026

645 Ventures Investment Overview

Portfolio Companies
79
Total Invested
$1.4B
Average Investment
$21.5M

Complete List of 645 Ventures Portfolio Companies (79)

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#CompanyStageAmountLocation
76Hire An EsquireSeries Unknown$1.8MNew York, United States
77Source3SeedUndisclosedNew York, United States
78HullabaluAngel$2.5MNew York, United States
79Fly LabsConvertible Note$750KBrooklyn, United States
Enterprise SoftwareLegalMarketplaceProfessional Services

Hire an Esquire connects law firms and in-house legal departments with a vetted network of top attorneys via an online marketplace platform.

New York, United States
June 2017
$1.8M
Series Unknown

Founder Contacts

19,000+ verified contacts

3D PrintingContentContent CreatorsIntellectual PropertySoftware

Source3 is the world's first platform for end-to-end management of intellectual property in user-generated content (UGC).

New York, United States
March 2017
Seed

Founder Contacts

19,000+ verified contacts

Digital MediaEducationMobile

Hullabalu, a children’s media company, develops interactive storytelling apps for mobile devices.

New York, United States
November 2015
$2.5M
Angel

Founder Contacts

19,000+ verified contacts

ComputeriOSSoftware

Fly Labs – Making video creativity mainstream

Brooklyn, United States
December 2014
$750K
Convertible Note

Founder Contacts

19,000+ verified contacts

Showing 76-79 of 79 portfolio companies

Frequently Asked Questions About 645 Ventures

How many companies has 645 Ventures invested in?

645 Ventures has invested in 79 companies tracked in our database. The portfolio spans multiple industries and funding stages, from seed-stage startups to late-stage companies.

What industries does 645 Ventures invest in?

645 Ventures's top investment sectors include Software, Enterprise Software, Legal, Marketplace, Professional Services. The firm invests across 14 different industry categories.

What is 645 Ventures's largest investment?

Among tracked funding rounds, Hullabalu received $2.5M in a Angel round. 645 Ventures's total known invested capital is $1.4B.

What is the average investment size for 645 Ventures?

645 Ventures's average investment size is $21.5M across its portfolio of 79 companies.

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