STILLMARK
Venture capitalActively deployingLos Angeles Β· 2 people tracked
Also known as STILLMARK LL Β· STILLMARK MANAGEMENT LLC
Investment thesis
Stillmark backs founders building the infrastructure and applications of a bitcoin-powered future. The firm focuses on companies across the bitcoin ecosystem, including Lightning Network technology, bitcoin-native financial products, custody and cryptography solutions, energy-efficient mining, and bitcoin-based insurance. Its portfolio spans companies applying bitcoin to reimagine financial services and infrastructure at scale.
Source: firm website, verified Aug 3, 2026.
Team Β· 2 people
from the firm's websiteWhat they invest in
from 15 of 33 portfolio companiesCrypto & Web3 Γ11Fintech Γ10SaaS Γ4Enterprise Software Γ3AI & Machine Learning Γ2Data & Infrastructure Γ1Developer Tools Γ1Energy Γ1
HQs:United StatesΓ4BermudaΓ1BrazilΓ1EstoniaΓ1FranceΓ1
Investments Β· 33 tracked
founders shown can be your intro pathSatoshi Energy develops and markets construction-ready energy infrastructure sites to data center operators and connects energy suppliers with data center companies through its Bitcurrent platform for large power transactions.
Data & InfrastructureEnergyHouston, US
Andrew Myers(Executive Officer, Director)Alyse Killeen(Director)Brock Petersen(Executive Officer, Director)
Board seatAlyse KilleenΒ· per SEC Form D
Alpen Labs builds a Bitcoin layer-2 network that enables financial applications through a ZK rollup with optimistic bridge architecture.
Crypto & Web3Fintech
John LightTrey Del BonisLiam EagenManish BistaAaron Feickert
Amboss provides data analytics and machine learning tools for the Bitcoin Lightning Network, offering routing optimization and risk management for merchants, consumers, and enterprise users.
AI & Machine LearningCrypto & Web3FintechPortland, US
Anthony Potdevin(Executive Officer, Director)Jesse Shrader(Executive Officer, Director)
BoardEmanuele Rossi(ML Advisor)
Ark provides a customizable digital platform for venture capital and private equity firms to manage investor communications, performance reporting, and document sharing with their limited partners.
Enterprise SoftwareFintechSaaS
Clovyr builds software systems designed around user respect and privacy, avoiding manipulative "dark patterns." The company operates as a distributed team across the United States, originally based in Brooklyn.
Developer ToolsSaaSNew York City, US
Patrick Nielsen(Co-founder & CEO)Amber Baldet(Executive Officer)
Brings bitcoin mining to the renewable energy mecca of Africa.
Hoseki provides Bitcoin proof-of-reserves and asset verification infrastructure, letting holders generate cryptographically-verified statements of ownership and letting businesses embed branded verification flows via white-label tools, an email-based portal, and APIs.
Crypto & Web3FintechSaaS
Sam Abbassi(Founder and CEO)Cory Wilbur(CTO and Head of Product)
Pioneer in the development of Lightning-as-a-Service infrastructure for enterprise and SMBs, with a focus on LATAM and emerging markets.
Lightning Terminal is a web-based dashboard and management platform for Bitcoin Lightning Network node operators that simplifies node management and provides liquidity tools.
Crypto & Web3FintechPalo Alto, US
Elizabeth Stark(Founder)Olaoluwa Osuntokun(Executive Officer, Director, Promoter)
Develops and maintains Stak and Sphinx Chat, global products built with Lightning at the intersection of Lightning and frontier AI.
Bitcoin-denominated life insurance company making financial protection accessible in the digital economy
Meanwhile provides life insurance policies denominated and paid out in Bitcoin, allowing policyholders to build Bitcoin-based wealth through guaranteed growth rates and access policy loans against their accumulated value.
Crypto & Web3InsurTechHamilton, BM
Re-imagining social and making it playable.
IBEX provides interoperable infrastructure enabling instant settlement across fiat, stablecoins, and crypto for banks, fintechs, and payment providers.
Crypto & Web3Fintech
Striga provides regulated APIs for digital asset custody, trading, banking, and card issuing across 30+ countries, serving fintech platforms, neobanks, and payment service providers that want to offer crypto and fiat services without holding their own licenses.
Crypto & Web3Enterprise SoftwareFintechTallinn, EE
Prashanth Balasubramanian(Founder/CTO)in
Frequently asked questions
- What sectors does STILLMARK focus on?
- STILLMARK focuses on Crypto & Web3, Fintech, InsurTech.
- Where is STILLMARK located?
- STILLMARK is headquartered in Los Angeles, US.
Media Β· Podcasts & interviews
featuring the teamGoogle ends WFH, $SNOW earnings + Stillmark's Alyse Killeen Angel S6 E7 + Pallet CEO Kai Han | E1400
This Week in Startups Β· Alyse Killeen
How Fiat went Broke w/ Alyse Killeen of Stillmark Capital
Bitcoin Magazine Β· Alyse Killeen
Bitcoin Venture Capital with Alyse Killeen of Stillmark. Investing in #Bitcoin startups since 2013
Lightning Ventures Β· Alyse Killeen

Alyse Killeen of Stillmark "Over The Past 30 Days We've Seen About a Million New HODLers" 8/17/2021
BITCOIN Β· Alyse Killeen Β· youtube.com
Alyse Killeen, Managing Partner StillMark Co #blockchaininnovation
FinTech Silicon Valley Β· Alyse Killeen
Co-investors Β· 18
Serena is a France-based venture capital firm founded in 2008 by entrepreneurs to support founders, with more than half of its team being operators who have founded or led companies.
Acrew Capital is a venture capital firm that emphasizes a team-based approach to investing, offering portfolio companies access to its full team.
March Capital is an early-growth venture capital firm investing in frontier technology companies focused on the AI revolution, partnering with founders to build category-defining businesses.
Mouro Capital is a venture capital investor backing early to growth stage companies, leveraging its expertise and global network across multiple regions.
Bain Capital Crypto is an investment firm focused on the crypto and blockchain sector, publishing cryptography and privacy research alongside its investments in crypto infrastructure companies.
Castle Island Ventures is a venture capital firm focused exclusively on public blockchains, backing early-stage infrastructure and application companies at the intersection of traditional finance and blockchain technology.
Trammell Venture Partners (TVP) is a venture firm focused on backing Bitcoin and Lightning Network startups, partnering with founders at an early stage.
General Catalyst is a venture capital and investment firm that backs founders across industries, with a strong focus on AI-driven transformation, fintech, healthcare, and other sectors.
Founders Fund is a venture capital firm that invests in companies building transformative technologies across defense, space, data analytics, and other frontier sectors.
Oak HC/FT is a growth equity firm that partners with founders building companies in healthcare and financial services, with a focus on enterprise technology and AI.
Two Sigma Ventures has rebranded and is now known as Deviation Capital; the page directs visitors to the new website.
Blockchain Capital is a venture firm that has partnered with crypto builders since 2013, investing across the blockchain and digital asset ecosystem.
βΆ6 more co-investors
MS&AD VenturesEXPONENT FOUNDERS CAPITALFuture Perfect VenturesBitwise Asset ManagementLondon Venture PartnersUnicorn India Ventures
Firms observed investing alongside STILLMARK, from public investor directories. Shared companies are the overlap with STILLMARK's recorded portfolio.
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