# Hart Lambur

> Hart Lambur is a seed investor at Across Protocol backing Blockchain. See 11 investments, check sizes, portfolio and contact details. Updated Aug 2026.

- Type: Angel Investor
- Fund: Across Protocol
- Location: New York, United States
- Total investments: 11
- Last investment: Nov 2025
- Lead investor: 0%
- Last updated: Aug 2026
- LinkedIn: http://www.linkedin.com/in/hartlambur
- X (Twitter): http://twitter.com/hal2001
- Website: https://x.com/hal2001
- Facebook: http://www.facebook.com/hart.lambur

Hart Lambur is a seed investor at Across Protocol in New York focused on Blockchain and Cryptocurrency. Hart Lambur is the Co-Founder, CEO & Board Member of umaproject.

## Contacts

5 contacts available for Hart Lambur: work email, personal email, work phone, personal phone and socials. Sign up free to unlock them: https://app.shizune.co/sign-up/investor-profiles/find-email/hart-lambur?utm_source=investor_profile

## Round sizes

| Stage | Round size |
| --- | --- |
| Seed | $2.1M–$10M |

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Blockchain | 5 | 45% |
| Cryptocurrency | 5 | 45% |
| Financial Services | 3 | 27% |
| Finance | 2 | 18% |
| Internet | 2 | 18% |

12 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Seed | 7 | 64% |
| Angel | 1 | 9% |
| Series A | 1 | 9% |
| Initial Coin Offering | 1 | 9% |

### Country

| Country | Investments | Share |
| --- | --- | --- |
| United States | 4 | 36% |
| Canada | 1 | 9% |
| Portugal | 1 | 9% |
| Switzerland | 1 | 9% |
| Cayman Islands | 1 | 9% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Self Protocol | Self is spearheading a secure, human-first internet by allowing users to verify their identities while maintaining their privacy. Self Protocol is an identity and proof-of-humanity solution that uses zero-knowledge technology to confirm personhood and distinctive traits, like age and nationality, without revealing private information. | $9M | Seed | Nov 13, 2025 |  |
| Divine Research | Divine Research Inc. offers a credit platform called "Credit" that provides small, fast loans without requiring collateral or credit history, mainly using stablecoins and biometric verification to serve people excluded from traditional finance worldwide. Borrowers grow their loan limits over time through trust, while liquidity providersearn competitive interest rates, making the system scalable and profitable for both sides.Divine Research Inc. runs a credit platform called "Credit," providing fast, collateral-free microloans to people excluded from traditional finance, using biometric verification and stablecoins to serve millions globally. The system builds trust over time, raising loan limits and ensuring accessible, profitable lending for borrowers and investors. | $6.6M | Seed | Sep 25, 2025 |  |
| OneBalance | OneBalance is a new framework for credible accounts - combining chain abstraction, gas abstraction and permission management to solve the fragmented Web3 user experience. | $5M | Angel | Aug 26, 2024 |  |
| Gyroscope | Gyroscope develops an asset-backed stablecoin built on resilient Defi infrastructure. It leverages a diversified reserve and autonomous monetary policy. | $4.5M | Seed | Mar 09, 2023 |  |
| SX Network | SX Network is an EVM-compatible blockchain designed to disrupt the sports betting industry. | $9.5M | Seed | Apr 28, 2022 |  |
| CoWSwap | CoWSwap is the first trading interface built on top of the CoW Protocol. It saves money on token swaps by trading directly with peers and avoiding front-running attacks. | $23M | Initial Coin Offering | Mar 29, 2022 |  |
| DELV | Element is an open source protocol for fixed and variable yield markets. | $32M | Series A | Oct 19, 2021 |  |
| Domination Finance | Domination Finance is a developer of a non-custodial financial instrument for traders. Its platform is an ethereum app built on the UMA protocol that allows users to long or short Bitcoin Dominance and enables trading in the cryptocurrency market. | $3.2M | Seed | Sep 15, 2021 |  |
| SEDA | SEDA is a multichain, permissionless protocol connecting real world data to any network on-chain | $10.3M | Seed | May 20, 2021 |  |
| Apptimize | Apptimize lets mobile teams increase revenue and engagement by iterating faster and smarter. Our mission is to enable you to optimize, deploy, and manage the features and UX of your native iOS and Android apps in real-time through instant updates, A/B testing, feature flags, and analytics. We work with top apps like the Wall Street Journal,Western Union, Flipagram, HotelTonight, Nokia, and Trulia. | $2.1M | Seed | Jan 22, 2014 |  |

10 of 11 investments shown.

## Co-investors
- [Hack VC](https://shizune.co/investors/profile/hack-vc) — VC Fund, 3 deals together
- [Ethereal Ventures](https://shizune.co/investors/profile/ethereal-ventures) — VC Fund, 2 deals together
- [Maven 11 Capital](https://shizune.co/investors/profile/maven-11-capital) — VC Fund, 2 deals together
- [Nascent](https://shizune.co/investors/profile/nascent-91c1) — VC Fund, 2 deals together
- [Placeholder](https://shizune.co/investors/profile/placeholder-55ca) — VC Fund, 2 deals together
- [Robot Ventures](https://shizune.co/investors/profile/robot-ventures) — VC Fund, 2 deals together

## About Across Protocol

VC Fund · Chicago, United States

Across Protocol is a blockchain transaction chain provider.

1 contacts available at Across Protocol.

| Name | Title | Profile |
| --- | --- | --- |
| Hart Lambur | Co-Founder | https://shizune.co/investors/profile/hart-lambur |

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## FAQ

### What does Hart Lambur invest in?

Hart Lambur invests primarily in Blockchain, Cryptocurrency and Financial Services startups, most often at Seed and Angel stage. Most of the 11 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 Hart Lambur's check size?

Hart Lambur typically joins rounds of $2.1M–$10M at Seed. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Hart Lambur participates in.

### How do I contact Hart Lambur?

Public channels for Hart Lambur 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 Hart Lambur last invest?

The most recent investment recorded for Hart Lambur closed in Nov 2025. Shizune tracks 11 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 Aug 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.

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