Overview
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Stillmark
Invests early in Bitcoin, blockchain and decentralized web startups to advance Bitcoin’s core principles.
Portfolio
22+
Employees
3+
Founded
2019
AUM
N/A
Investment focus
Stages
No stages listed
Industries
No industries listedSources
Stillmark
Invests early in Bitcoin, blockchain and decentralized web startups to advance Bitcoin’s core principles.
Portfolio
22+
Employees
3+
Founded
2019
AUM
N/A
Showing 18 of 18 matched portfolio companies
Alpen provides an EVM-compatible environment for building decentralized financial applications directly on Bitcoin. The platform enables users to leverage their BTC for borrowing, earning interest, and spending through a novel 1-of-N Bitcoin bridge. All financial transactions settle directly on Bitcoin, inheriting its double-spend security via a unique ZK rollup architecture.
Funding: $8.5M
Rough estimate of the amount of funding raised
Funding: $8.5M
Rough estimate of the amount of funding raised
AMBOSS provides tools for managing liquidity and optimizing channel connections on the Bitcoin Lightning Network. By utilizing AI-driven insights and real-time data analysis, the platform enhances liquidity deployment and channel efficiency, addressing the challenges of market organization within the network.
Funding: $4.0M
Rough estimate of the amount of funding raised
Funding: $4.0M
Rough estimate of the amount of funding raised
Bipa allows users to buy and sell Bitcoin starting from R1 using the Pix payment system and the Lightning Network, enabling low-cost and rapid transactions. The platform lowers the financial barrier for individuals interested in cryptocurrency trading, facilitating access without requiring significant upfront investment.
Funding: $4.5M
Rough estimate of the amount of funding raised
Funding: $4.5M
Rough estimate of the amount of funding raised
Bitstack is a mobile application that automates bitcoin savings by rounding up everyday purchases and converting the spare change into bitcoin, allowing users to save effortlessly. This solution addresses the challenge of saving consistently by enabling users to invest in bitcoin without requiring active management or significant upfront capital.
Funding: $8.5M
Rough estimate of the amount of funding raised
Funding: $8.5M
Rough estimate of the amount of funding raised
Casa provides a non‑custodial, multi‑key vault platform that lets individuals and organizations securely self‑custody Bitcoin, Ethereum, USDC, and USDT across multiple hardware devices and locations. The service combines multisignature protection, a recovery key, guided key‑replacement, and an inheritance workflow, all supported by dedicated security advisory and 24/7 support, offered via subscription plans.
Funding: $31.5M
Rough estimate of the amount of funding raised
Funding: $31.5M
Rough estimate of the amount of funding raised
Clovyr offers a suite of applications and services that enable teams to deploy and manage their apps with one-click deployment and a custom VSCode environment for developers. This platform addresses the complexity of app deployment and management, providing users with a clean, accessible interface to run their applications from a browser-based library.
Fipto provides an enterprise‑grade payments platform that lets businesses send, receive, hold, and convert fiat and stablecoins globally in real time via a single API and web interface. The service offers named EUR/USD IBANs, segregated blockchain wallets, instant FX conversion, and bulk payout tools while maintaining dual European payment institution and MiCA CASP licensing and ISO 27001 security.
Gridless installs Bitcoin mining equipment at renewable mini‑grid sites in Africa and operates it as an anchor tenant, providing a reliable, high‑value off‑take for excess electricity. Its Gridless OS runs on a rugged edge server to continuously match miner demand with real‑time grid conditions, ensuring stability while generating revenue for independent power producers. This creates a new cash flow for mini‑grid operators, improves local power reliability, and supports the decentralization of the Bitcoin network.
Heatbit Trio is a home appliance that combines a space heater, air purifier, and Bitcoin mining functionality, utilizing 5 nm silicon chips to achieve a mining efficiency of 10 TH/s while consuming only 400 watts. This device allows users to generate Bitcoin and improve indoor air quality simultaneously, addressing the high energy costs associated with traditional heating methods.
Hoseki provides a platform for Bitcoin account integration and verification through its API, enabling users to connect their crypto accounts and verify Bitcoin holdings securely. This addresses the need for transparent proof of reserves in the cryptocurrency space, facilitating trust and compliance for financial institutions and digital asset holders.
This startup develops a payment application that utilizes lightning-infrastructure-as-a-service technology to enable real-time settlement and facilitate cross-border, cross-currency payments through the Bitcoin lightning network. By transforming closed payment ecosystems into open, interoperable systems, the company allows FinTech firms to scale globally while ensuring security and regulatory compliance.
The startup develops a payment protocol that utilizes blockchain technology and smart contracts to enable fast and private cryptocurrency transactions globally. By providing an open protocol layer, it allows users to conduct Bitcoin and other cryptocurrency transactions of any size with enhanced privacy and efficiency.
Meanwhile provides life insurance policies denominated entirely in Bitcoin for wealth preservation and efficient inheritance planning. The company invests premiums for Bitcoin returns, allowing beneficiaries to receive a guaranteed death benefit in BTC. Policyholders can also borrow against their policy's value in Bitcoin with favorable cost basis adjustments.
Funding: $20.0M
Rough estimate of the amount of funding raised
Funding: $20.0M
Rough estimate of the amount of funding raised
The startup develops a mobile gaming platform that transforms user-generated video content into interactive gaming experiences, utilizing blockchain technology to support in-game transactions. This approach creates a new gaming genre that combines social entertainment with user engagement, specifically targeting the preferences of Gen Z.
Satoshi Energy provides data-driven insights and power contracts tailored for bitcoin miners, utilizing analytics to optimize energy consumption and reduce costs. The company addresses the volatility of energy prices and the demand for stable power sources in the cryptocurrency mining industry.
Striga offers a regulated, modular API platform for businesses to embed digital asset and fiat payment functionalities into their applications. The platform provides seamless integration for custody, trading, banking, and card issuing, abstracting regulatory compliance and backend infrastructure to accelerate go-to-market strategies.
Funding: $125.0K
Rough estimate of the amount of funding raised
Funding: $125.0K
Rough estimate of the amount of funding raised
Vespene Energy deploys behind-the-meter clean power generation systems at commercial facilities with zero upfront cost to the client. The company manages all financing, installation, and maintenance for the on-site energy infrastructure. Customers purchase the generated clean electricity at rates significantly below standard utility tariffs, ensuring immediate operational savings and high uptime reliability.
Funding: $4.3M
Rough estimate of the amount of funding raised
Funding: $4.3M
Rough estimate of the amount of funding raised
Voltage provides enterprise-grade infrastructure for the Lightning Network, enabling businesses to manage Bitcoin payments with high scalability and minimal technical overhead. Their platform offers production-ready Lightning and Bitcoin nodes, along with APIs and SDKs, allowing users to efficiently process transactions and optimize payment operations without the need for extensive in-house engineering resources.
Showing 4 of 4 unmatched portfolio companies