Investors / United States / Stillmark
Stillmark
Venture capital · Los Angeles, CA, United States · North America
Stillmark is a venture capital firm focused on bitcoin companies. It publishes research and founder stories and maintains a portfolio of bitcoin-related businesses.
Invests inFintechCrypto & Web3
In its own wordsbitcoincryptolightning networkmininginsuranceinfrastructure
Your fit with Stillmark
Four questions about your startup
See how your round matches what it backs, point by point.
Or find every investor that fitsStillmark lists 22 checked portfolio companies on its own site and is named in 2 funding rounds. Its most frequent entry is Series A, 50% of the companies with a known first round. Its largest themes are Fintech (38%), Crypto & Web3 (30%) and E-commerce & Marketplaces (5%). It invests most often alongside Hivemind Capital, Fulgur Ventures and Timechain.
Counts come from funding rounds that name Stillmark, complete from mid-2025: earlier rounds appear only when they were reported later. Round amounts and full round histories are on Fundup AI.
Round figures show recent activity, not Stillmark's whole history. Rounds on record name 2 companies; its own site lists 22. Funding rounds are complete from mid-2025, so counts and the yearly trend undercount a firm that invested before then. The portfolio, themes and places come from its own site and are not affected.
Entry stage
share of companies by the stage of its first roundStillmark does not state its stages on its site, so only what it does is shown.
Show as a table
| Value | |
|---|---|
| Pre-seed | 0% |
| Seed | 0% |
| Series A | 50% |
| Series B | 50% |
| Growth | 0% |
Activity by year
rounds it joined, last 10 yearsShow as a table
| Total | Rounds it led | |
|---|---|---|
| '17 | 0 | 0 |
| '18 | 0 | 0 |
| '19 | 0 | 0 |
| '20 | 0 | 0 |
| '21 | 0 | 0 |
| '22 | 0 | 0 |
| '23 | 0 | 0 |
| '24 | 0 | 0 |
| '25 | 2 | 0 |
| '26 | 0 | 0 |
Investor profile
percentile among all firmsShow as a table
| Measure | Percentile of all firms | Value |
|---|---|---|
| Portfolio size | 55th | 22 companies |
| Recent activity | 59th | 1 rounds in 12 months |
| Early stage | 54th | 0% of entries at pre-seed or seed |
| Evidence | 75th | 9% of companies confirmed by a round |
| Sector focus | 70th | 38% in its largest sector |
| Reach | 78th | 5 countries |
Investment themes
share of its checked companiesThis firmAll checked companies
Show as a table
| This firm | All checked companies | |
|---|---|---|
| Fintech | 38% | 12% |
| Crypto & Web3 | 30% | 1% |
| E-commerce & Marketplaces | 5% | 6% |
| Industrial & Manufacturing | 5% | 7% |
| AI & Machine Learning | 5% | 18% |
| Enterprise Software | 5% | 8% |
| Education | 3% | 7% |
| Healthcare & Biotech | 3% | 15% |
Invests most often with
firms sharing its portfolio companiesShow as a table
| Share | |
|---|---|
| Hivemind Capital | 5 |
| Fulgur Ventures | 4 |
| Timechain | 4 |
| Founders Future | 2 |
| Serena | 2 |
| Valor Siren Ventures | 2 |
| Y Combinator | 2 |
| 13books Capital | 1 |
Its portfolio companies
where they are based, and what their own sites showSite status
- Site answers22100%
- No longer answers00%
- Points to another company00%
- Parked or sold domain00%
A site that stops answering three checks in a row is counted as no longer answering; that is not proof of closure. A site that points to another company is often an acquisition.
Co-investor network
who it backs companies with, and who they back togetherAll co-investors or Compare portfolios with Hivemind Capital
Compare Stillmark head to head
portfolio size, rounds, entry stages, themes and the companies both backThree or more firms at once: portfolio overlap.
Recent portfolio activity
when companies last raised with Stillmark| Date | Company | Stage |
|---|---|---|
| 2 Dec 2025 | Series A | |
| 7 Oct 2025 | Series B |
Round details for Stillmark
Amounts, full round histories and every co-investor in Stillmark's rounds are on Fundup AI. VCinfo covers investors and their portfolios.
Portfolio
22 companies checked against their own sites| Company | What it does | Themes | First round with it | Evidence |
|---|---|---|---|---|
| Alpen Labs provides financial products and services on the Bitcoin market using zero-knowledge proofs for security. | FintechCrypto & Web3 | Portfolio page | ||
| Amboss Technologies provides infrastructure, exploration, and analytics tools for the Bitcoin Lightning Network. | FintechCrypto & Web3 | Portfolio page | ||
| Bipa offers digital accounts with a piggy bank, card, and investment products. | FintechCrypto & Web3 | Portfolio page | ||
| Bitstack provides a platform for users to save, spend, and grow their money in bitcoin | FintechCrypto & Web3 | Dec 2025Series A | Page + round | |
| Clovyr builds tools for deploying and running decentralized applications | Enterprise SoftwareCybersecurity | Portfolio page | ||
| Fipto provides payment infrastructure for businesses to send, receive, hold and convert funds globally in real time across fiat and stablecoin rails | FintechCrypto & Web3 | Portfolio page | ||
| Glimpse operates a bitcoin prediction market where users can forecast the future price of bitcoin and other assets. | FintechCrypto & Web3 | Portfolio page | ||
| Gridless runs compute operations beside renewable power plants in Africa, providing a steady customer for excess power and supporting local communities with electricity access. | E-commerce & MarketplacesAI & Machine Learning | Portfolio page | ||
| Heatbit produces and sells bitcoin mining devices for home use, integrated into appliances such as water heaters and air purifiers | Crypto & Web3Consumer | Portfolio page | ||
| Hoseki provides solutions for generating cryptographically-verified statements for Bitcoin and digital assets | FintechCrypto & Web3 | Portfolio page | ||
| Casa provides bitcoin self-custody and multisig services for individuals and businesses. | FintechCrypto & Web3 | Portfolio page | ||
| Lightning Labs develops software that powers the Lightning Network, enabling users to send and receive money more efficiently. | FintechCrypto & Web3 | Portfolio page | ||
| The company provides life insurance services that use Bitcoin | FintechHealthcare & Biotech | Oct 2025Series B | Page + round | |
| Portfolio page | ||||
| Ibex Mercado provides a settlement and clearing engine for fiat and digital assets | FintechFintech | Portfolio page | ||
| Satoshi Energy provides energy and compute services, including data center sites, energy procurement, risk management, and energy operations. | E-commerce & MarketplacesIndustrial & Manufacturing | Portfolio page | ||
| Sphinx Chat provides a decentralized and secure chat application using the bitcoin lightning network. | FintechMedia & Entertainment | Portfolio page | ||
| Portfolio page | ||||
| Striga provides payments infrastructure for Bitcoin and Stablecoins | FintechCrypto & Web3 | Portfolio page | ||
| Vespene Energy develops, finances, owns and operates dedicated on-site power plants for properties, providing power independent of the utility interconnection queue. | EducationIndustrial & Manufacturing | Portfolio page |
About this data
site last read 5 Nov 2026- Site
- stillmark.com
- Last read
- 5 Nov 2026
- Watching since
- 5 Nov 2026
- Rounds since
- 7 Oct 2025
- Companies checked
- 22
Rates come from what VCinfo has observed since observation_start. Firms tend to remove companies that closed, so early rates understate reality. A company leaving a portfolio page does not mean it closed or exited. An unreachable site means our checks failed, nothing more.
Get Stillmark's profile as data
Pull Stillmark's portfolio, co-investors and changes through one API key or MCP, open every portfolio row, compare it with other firms, and get an email when it adds a company or files a fund.
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- Full listsEvery portfolio row and two-firm overlap
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- AlertsFollow 5 investors for portfolio and fund changes
$ curl -H "X-API-Key: YOUR_KEY" \
https://api.vcinfo.io/v1/firms/stillmark.com
# also
GET /v1/firms/stillmark.com/portfolio
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