PROOF
VC Fund
Reston, United States
PROOF is a VC fund in Reston focused on Software and E-Commerce. PROOF invests in breakout high-performing companies in growth rounds across all VC sectors except life sciences. The firm works in partnership with early stage VCs and leverages their pro-rata rights in exchange for sharing part of the upside.
- Total investments:
- 97
- Last investment:
- Lead investor:
- 20%
- Fund size:
- $630k
- Last fund:
Last updated:
For AI agents: llms.txt
Industries PROOF invests in
Stages PROOF invests in
Countries PROOF invests in
Round sizes
Contacts
| Name | Phone | Socials | |
|---|---|---|---|
| See all 6 contacts → | |||
Round size
- Series A
- $1.5M–$11M
- Series B
- $5M–$50M
- Series C
- $7M–$37M
Investment Focus
Industry
- Software 13 (13%)
- E-Commerce 11 (11%)
- Information Technology 11 (11%)
- Mobile 8 (8%)
- Internet 8 (8%)
Stage
- Series B 28 (29%)
- Series A 25 (26%)
- Series C 12 (12%)
- Funding Round 6 (6%)
- Series D 5 (5%)
Country
- United States 64 (66%)
- Nigeria 1 (1%)
- United Kingdom 1 (1%)
Team
| Name | Title | Investments | Links | |
|---|---|---|---|---|
Jennifer Schretter
General Partner
|
General Partner | Total investments: 0 | Find email | |
Thanasis Delistathis
Co-Founder & Managing Partner
|
Co-Founder & Managing Partner | Total investments: 3 | Find email | |
John Backus
Co-Founder and Managing Partner
|
Co-Founder and Managing Partner | Total investments: 8 | Find email | |
John Burke
Co-Founder & Managing Partner
|
Co-Founder & Managing Partner | Total investments: 5 | Find email | |
Scott McComb Johnson
Managing Director
|
Managing Director | Total investments: 21 | Find email | |
| See all 6 team members → | ||||
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| Flagler Health assists physicians by recommending the best treatment strategy based on patient data and AI technologies. | $50M / Series B / Aug 11, 2026 | ||
| Ownwell is an online solution that helps people reduce the cost of owning real estate. | $30M / Series B / Feb 19, 2026 | ||
| Hyperdrive delivers investment growth strategies utilizing a portfolio-centered approach. | $6M / Series A / May 23, 2025 | ||
| TurbineOne is the frontline perception company. It started with the vision of a world where people could sense every threat, speak any language, and deploy robots to dangerous environments instead of putting people unnecessarily in harm's way. | $36M / Series B / May 14, 2025 | ||
| HerculesAI is a generative AI company that brings the power of large language models inside the security perimeter of enterprises. Hercules, enables enterprises to quickly create, deploy, and run generative AI apps without compromising security standards. | $26.1M / Series B / May 30, 2024 | ||
| Pandion develops a technology platform for e-commerce players to manage capacity problems during peak periods. The logistics platform helps all businesses provide one and two-day shipping, and makes on-time delivery possible for more retailers, regardless of size and scale. Pandion’s delivery management software uses machine learning to avoidshipping delays and optimize delivery networks. | $41.5M / Series B / Mar 21, 2024 | ||
| RepeatMD is a SaaS company that uses an Inbound Revenue platform for aesthetic and wellness practices. Its features include robust e-commerce solutions, mobile rewards, memberships, customized marketing campaigns, and a comprehensive digital treatment catalog. With RepeatMD, practice owners can stop manually chasing outbound revenue opportunitiesand grow their businesses through Inbound Revenue. | $40M / Series A / Nov 27, 2023 | ||
| Mythical is a next-generation game technology studio. Mythical Games believes that true ownership of digital assets, verifiable scarcity, and integrated secondary markets will spawn a new generation of games. These new economies, based on digital ownership, will bring players, developers, and content creators closer to the games they love.Mythical Games has a team of veteran game and platform developers with a passion for bringing big innovative concepts to market. Its goal is to create world-class products that drive consumer adoption of distributed ledger technology through games. | $37M / Series C / Jun 27, 2023 | ||
| Sabi is a provider of digital infrastructure for the distribution of goods and services. Its platform enables and empowers underserved merchants in the world, allowing agents, merchants, aggregators, distributors, and manufacturers to expand their capabilities and grow their businesses using Sabi’s technology rails. These rails provide access toinventory, commodities, logistics, business tools, data insights, and financial services. | $38M / Series B / May 19, 2023 | ||
| Jupiter is Shopify for the 30k+ food creators on TikTok & Instagram. Jupiter is a YC company founded out of Stanford. Jupiter helps food creators launch their own grocery powered recipe stores. These stores are integrated with the social shopping tools so followers can shop directly from their social feeds. Orders are processed through deliveryAPIs. Jupiter has acquired some of the largest food creators in the world including Half Baked Harvest, Carolina Gelen and Molly Baz. Creators monetize by running brand sponsorships on their store. | Seed / Apr 01, 2023 | ||
| See all 97 investments → | |||
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FAQ
What does PROOF invest in?
PROOF invests primarily in Software, E-Commerce and Information Technology startups, most often at Series B and Series A stage. Most of the 97 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 PROOF's check size?
PROOF typically joins rounds of $1.5M–$11M at Series A, $5M–$50M at Series B and $7M–$37M at Series C. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds PROOF participates in.
How do I contact PROOF?
Public channels for PROOF 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.
Who are the partners at PROOF?
The team at PROOF includes Jennifer Schretter (General Partner), Thanasis Delistathis (Co-Founder & Managing Partner) and John Backus (Co-Founder and Managing Partner), among 6 team members tracked by Shizune. The Team section lists each member with their title, investment count and links.
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 Oct 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
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