Fulgur Ventures
Fulgur Ventures is a venture capital investment firm established in 2019 and located in Wilmington, Delaware. The firm focuses on investing in emerging sectors such as consumer wallets and applications, gaming, media, entertainment, and financial infrastructure. Fulgur Ventures believes in the potential of Bitcoin as a politically neutral monetary system and actively supports the development of the Lightning Network to enhance decentralized finance. With decades of experience in building and scaling businesses, the firm provides essential support to startups through investments ranging from $50,000 to $200,000 for pre-seed stages, as well as advisory and mentoring services. Additionally, Fulgur Ventures assists startups in navigating the complex legal and regulatory landscape of cryptocurrency, ensuring alignment with evolving industry standards and best practices.
Top Stages
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Past deals in Bitcoin
Meanwhile
Series A in 2025
Meanwhile is a Bermuda-based digital asset insurance company specializing in long-term Bitcoin (BTC) coverage. It offers a whole life product designed for individuals planning to hold BTC long term, aiming to create intergenerational wealth and benefit from tax-advantaged structures. Meanwhile accepts premiums and pays claims exclusively in BTC, with reserves and financials denominated in the same currency.
Jan3
Seed Round in 2025
Jan3 is a company dedicated to advancing the adoption of Bitcoin through innovative technologies that promote financial freedom globally. Its mission centers on accelerating the process of hyperbitcoinization, with the belief that Bitcoin can address various societal challenges. Jan3 develops tools designed for individuals, autonomous regions, and sovereign nations, facilitating their engagement with a decentralized financial system. By focusing on expanding access to Bitcoin and enhancing second-layer technologies, Jan3 aims to empower users to fully leverage the benefits of a free and open financial ecosystem based on Bitcoin.
Bipa
Seed Round in 2024
Bipa is a company that facilitates the buying and selling of Bitcoin, enabling customers to engage in transactions starting from R$1 using Pix and the Lightning Network. It has developed a digital account application that integrates Bitcoin with traditional banking systems. The application offers various features, including the ability to create and pay invoices, transfer satoshis from both the Bitcoin and Lightning networks, and provides financial information and services without withdrawal fees. Bipa aims to enhance user experience and accessibility in the cryptocurrency market through its innovative technology and convenient service offerings.
Blockstream
Convertible Note in 2024
Blockstream specializes in blockchain technology, offering solutions such as Blockstream Satellite for global Bitcoin access, Liquid Network for faster transactions, Green Wallet for secure non-custodial storage, and APIs for developers. They also focus on cryptographic proofs to enhance privacy and security.
Ark Labs
Pre Seed Round in 2024
Ark Labs is scaling Bitcoin with Ark, a new layer two protocol for fast, low-cost, seamless payments.
Elysium Lab
Pre Seed Round in 2024
Elysium Lab is an innovative startup that develops a keyless on-chain multi-factor authentication system for decentralized applications and self-custody wallets. The technology is modular and agnostic and was first implemented in a self-custody wallet for Bitcoin and stablecoins. It enables secure digital asset management by allowing interactions with smart contracts without exposing private keys, reducing theft and loss while preserving user ownership and improving the experience of managing assets. The on-chain onboarding algorithm supports secure access and asset management, redefining self-custody by generating and deleting the key as needed to maintain security. The company focuses on secure authentication, asset management, and privacy within decentralized ecosystems, addressing cyber threats and centralized custody risks for crypto assets.
Elysium Lab
Grant in 2024
Elysium Lab is an innovative startup that develops a keyless on-chain multi-factor authentication system for decentralized applications and self-custody wallets. The technology is modular and agnostic and was first implemented in a self-custody wallet for Bitcoin and stablecoins. It enables secure digital asset management by allowing interactions with smart contracts without exposing private keys, reducing theft and loss while preserving user ownership and improving the experience of managing assets. The on-chain onboarding algorithm supports secure access and asset management, redefining self-custody by generating and deleting the key as needed to maintain security. The company focuses on secure authentication, asset management, and privacy within decentralized ecosystems, addressing cyber threats and centralized custody risks for crypto assets.
AMBOSS
Seed Round in 2023
AMBOSS is a company that has created a lightning liquidity platform aimed at safeguarding buyers and sellers through user-friendly smart contracts and reputation functionalities. The platform developed by the company includes a lightning network explorer and data analytics tool that present clients with information about their connections and payment capabilities. By identifying nodes to initiate payment agreements, the platform offers intuitive data displays to assist clients in efficiently organizing the market on the bitcoin lightning network.
Relai
Seed Round in 2023
Relai offers a user-friendly mobile application for buying and saving Bitcoin in Europe. Users can purchase and sell Bitcoin instantly, without registration, verification, or deposits. The app also provides a non-custodial Bitcoin wallet, ensuring users maintain full control over their funds.
Blockstream
Convertible Note in 2023
Blockstream specializes in blockchain technology, offering solutions such as Blockstream Satellite for global Bitcoin access, Liquid Network for faster transactions, Green Wallet for secure non-custodial storage, and APIs for developers. They also focus on cryptographic proofs to enhance privacy and security.
Breez
Venture Round in 2022
Breez offers a user-friendly, swift, and secure method for conducting Bitcoin transactions. Leveraging the Lightning Network, Breez aims to revolutionize commerce by transforming Bitcoin into a practical currency.
Neutronpay
Seed Round in 2022
Neutronpay develops a payment gateway platform that enables businesses to accept and send payments securely in real-time. Its key feature is seamless integration with Bitcoin Lightning for risk-free transactions.
The Bitcoin Company
Seed Round in 2022
The Bitcoin Company is developing a Bitcoin services platform intended to make cryptocurrency accessible to a broad audience. The platform is designed as a super-app that combines learning, earning, spending, saving, borrowing, and buying Bitcoin in a single interface, and to integrate traditional banking with crypto services. It begins with a Bitcoin rewards program that lets users earn sats on purchases, link credit cards, and buy gift cards, with plans to expand the suite of financial tools. The company emphasizes privacy and simplicity, aiming to provide a private, easy-to-use experience that reduces friction for crypto adoption while broadening access to conventional financial services alongside digital assets. The goal is to unify everyday financial activities around Bitcoin and related crypto services.
IBEX Mercado
Seed Round in 2022
Ibex Mercado is a platform or financial operator for payment systems. Their service is a brokerage web platform for investors can buy and sell bitcoins, IBEXPAY is a web-based bitcoin payment platform, and bitcoin lightning payment infrastructure is a service. Ibex Mercado offers a service and trading systems based on stable and advanced proprietary technology.
Relai
Seed Round in 2022
Relai offers a user-friendly mobile application for buying and saving Bitcoin in Europe. Users can purchase and sell Bitcoin instantly, without registration, verification, or deposits. The app also provides a non-custodial Bitcoin wallet, ensuring users maintain full control over their funds.
Voltage
Seed Round in 2022
Voltage is a Bitcoin infrastructure provider. It adds enterprise-grade capabilities to both Layer 1 and Layer 2 technologies. It provides Bitcoin-centric infrastructure to engineering teams, enabling enterprise-grade experiences. Users benefit from the fastest and most scalable Lightning solution that meets the highest security and privacy standards by leveraging Voltage. Users can build, deploy, and scale faster than ever before with modern modular tools and processes. Voltage brings to market a suite of node, liquidity, and data services that elevates your value proposition via Lightning Network architecture.
Scarce City
Seed Round in 2021
Scarce City operates as a crypto marketplace focused on Bitcoin-related artworks and auctions. The company enables buyers to purchase Bitcoin-themed art using Bitcoin and leverages Bitcoin technology to reduce auction costs and improve marketplace coherence, including online bidding in under-collateralized auctions. Through a cultural approach, it aims to foster Bitcoin adoption by connecting art with cryptocurrency.
Galoy
Seed Round in 2021
Galoy is an open‑source Bitcoin banking platform that enables communities and institutions to provide financial services on Bitcoin. It offers a secure backend API, mobile wallets, point‑of‑sale applications, compliance tools, and administrative controls. The platform’s core ledger and bitcoin bridge support enterprise‑scale transaction management, while extensible modules accommodate fiat and frontier markets. A proof‑of‑concept implementation, the Bitcoin Beach Wallet, helped establish a circular Bitcoin economy that influenced El Salvador’s adoption of Bitcoin as legal tender.
Umbrel
Seed Round in 2021
Umbrel provides a personal server with a Bitcoin and Lightning node at home.
GoSats
Seed Round in 2021
GoSats is a company focused on facilitating bitcoin investment in India through a user-friendly platform. It enables individuals to earn bitcoin cashback when they shop with partnered merchants, allowing them to passively accumulate bitcoin as part of their everyday purchasing activities. By integrating shopping with investment, GoSats aims to simplify the process of becoming a bitcoin investor, thereby creating new bitcoin enthusiasts daily. The platform serves as an innovative solution for those looking to enter the cryptocurrency market without needing extensive knowledge or experience.
Relai
Series A in 2021
Relai offers a user-friendly mobile application for buying and saving Bitcoin in Europe. Users can purchase and sell Bitcoin instantly, without registration, verification, or deposits. The app also provides a non-custodial Bitcoin wallet, ensuring users maintain full control over their funds.
Foundation
Pre Seed Round in 2021
Foundation Devices builds the open hardware foundation for Bitcoin and the sovereign Internet.
They started Foundation Devices to make beautifully designed, open-source hardware for Bitcoin and the decentralized Internet. To bring great design and UX to hardware wallets, nodes, and more. To empower individuals to securely use and store Bitcoin while maintaining their sovereignty. To help our industry cross the chasm while staying true to its founding ideals. We call this open hardware. And we are excited to bring it to the world!
Bitrefill
Funding Round in 2021
Bitrefill is a cryptocurrency-focused company that specializes in offering gift cards and prepaid mobile refills to customers and businesses worldwide. Founded in 2014 and headquartered in Stockholm, Sweden, Bitrefill provides access to over 1,600 products across 170 countries through its API, facilitating a seamless shopping experience without the need for registration or login. The company aims to enable users to utilize bitcoin as a practical currency for everyday transactions, ensuring a fraud-proof method for living on cryptocurrency. With a commitment to innovation, Bitrefill integrates advanced payment options, including the Lightning Network, to enhance the efficiency of its services.
Foundation
Angel Round in 2020
Foundation Devices builds the open hardware foundation for Bitcoin and the sovereign Internet.
They started Foundation Devices to make beautifully designed, open-source hardware for Bitcoin and the decentralized Internet. To bring great design and UX to hardware wallets, nodes, and more. To empower individuals to securely use and store Bitcoin while maintaining their sovereignty. To help our industry cross the chasm while staying true to its founding ideals. We call this open hardware. And we are excited to bring it to the world!
LN Markets
Pre Seed Round in 2020
LN Markets is a France-based company that develops a Lightning Network-based derivatives trading platform. Founded in 2019, it provides a bitcoin derivatives trading exchange that uses the Lightning Network to enable fast, low-cost settlement by avoiding on-chain transactions. The platform allows traders to exchange bitcoin derivatives directly from any Lightning Network wallet, connecting users to rapid funding and execution while reducing on-chain settlement frictions.
Satsback.com
Pre Seed Round in 2020
Satsback.com is an online shopping platform that enables customers to earn bitcoin as cashback rewards for their purchases. By utilizing this platform, users receive fractions of a bitcoin instantly upon eligibility for withdrawal, allowing for immediate access to their rewards. Satsback.com aims to empower its customers by providing them with control over their savings, facilitating an innovative way to earn free bitcoin while shopping online.
Graaf One
Pre Seed Round in 2020
Graaf One is a Canadian company that operates as a pioneering Lightning Network brokerage, facilitating the purchase of Bitcoin in a swift and cost-effective manner. Its platform leverages advanced lightning network technology to enable efficient and scalable peer-to-peer micro-payments for buying and selling cryptocurrencies. This innovative approach allows clients to manage their cryptocurrency transactions seamlessly, whether they choose to conduct transactions independently or with the assistance of a specialist. By prioritizing user experience, Graaf One aims to simplify the complexities of cryptocurrency trading for its customers.
Button Wallet
Seed Round in 2019
Button Wallet is a secure, user-friendly digital asset trading platform built on Telegram messenger. It enables users worldwide to hold, trade, and share various cryptocurrencies and tokens within existing group chats. With support for multiple currencies including BTC, ETH, LTC, and ERC-20 tokens, Button Wallet simplifies crypto transactions by allowing users to send funds using only Telegram usernames.
ZEBEDEE
Seed Round in 2019
Zebedee, Inc., established in 2019 and based in Hoboken, New Jersey, specializes in integrating Bitcoin and Lightning Network support into digital gaming environments. Its platform, ZEBEDEE, enables game developers to facilitate in-game microtransactions using Bitcoin, allowing players to send, receive, and store limited quantities of the cryptocurrency within their games. This fosters a seamless, frictionless exchange of value between players, developers, streamers, and watchers, powering digital economies within these gaming environments.
Fold
Seed Round in 2019
Fold is a bitcoin financial services company offering a consumer platform that enables users to earn bitcoin cashback as they shop with linked credit or debit cards and a bitcoin wallet. The platform supports syncing cards, transferring bitcoin to digital gift cards, and receiving bitcoin cashback instantly. It also provides a crypto and cash management experience that lets users buy, sell, and manage bitcoin and dollars, with rewards of up to 1.5% on eligible purchases; premium members enjoy a no-fee transaction experience. Fold aims to expand access to bitcoin by delivering a suite of consumer financial products that let customers earn, accumulate, and utilize bitcoin in everyday life.
Coinmiles
Seed Round in 2019
Coinmiles is a developer of an advanced Bitcoin-based reward application that offers users cashback in the form of Bitcoin when shopping online or in-store at over 1,000 brands, as well as when traveling at more than 900,000 hotels worldwide. The platform aims to create a comprehensive ecosystem that not only rewards consumers but also assists brands in managing and advertising their loyalty programs. By facilitating partnerships between users and brands, Coinmiles enhances user acquisition and engagement, allowing shoppers to convert their Bitcoin rewards into cash as needed. The company continues to innovate and expand its offerings within the cryptocurrency reward space.
Amber
Seed Round in 2019
Amber is a bitcoin accumulation app. They believe that preserving wealth is done with an intelligent and sensible long-term approach.
Vaultoro
Seed Round in 2019
Vaultoro Limited, established in London in 2014 by Joshua and Philip Scigala, operates a fintech platform specializing in digital assets and commodities trading. The company facilitates the storage and investment of physical allocated gold, bitcoin, Ethereum, and other assets through its secure, fast, and low-premium trading software. Vaultoro aims to democratize access to the gold market by enabling users to buy and sell allocated gold with ease, regardless of their financial background.
Breez
Seed Round in 2019
Breez offers a user-friendly, swift, and secure method for conducting Bitcoin transactions. Leveraging the Lightning Network, Breez aims to revolutionize commerce by transforming Bitcoin into a practical currency.
Lastbit
Seed Round in 2019
Lastbit SIA, founded in 2018 and based in Riga, Latvia, operates in the cryptocurrency sector by providing bitcoin wallet and debit card services. The company is developing a global payment network that utilizes the Bitcoin Lightning Network, allowing users to make instant payments with low fees. Its minimum viable product in Europe includes mobile applications that offer debit cards and IBANs, facilitating transactions in both Bitcoin and Euros. Additionally, Lastbit offers Lastbit Go, which enables users to make daily purchases using cryptocurrency.
Bitrefill
Seed Round in 2019
Bitrefill is a cryptocurrency-focused company that specializes in offering gift cards and prepaid mobile refills to customers and businesses worldwide. Founded in 2014 and headquartered in Stockholm, Sweden, Bitrefill provides access to over 1,600 products across 170 countries through its API, facilitating a seamless shopping experience without the need for registration or login. The company aims to enable users to utilize bitcoin as a practical currency for everyday transactions, ensuring a fraud-proof method for living on cryptocurrency. With a commitment to innovation, Bitrefill integrates advanced payment options, including the Lightning Network, to enhance the efficiency of its services.
Lightning.Video
Pre Seed Round in 2019
Lightning Video is leveraging Bitcoin's Lightning Network and WebTorrent to fix the incentives around content platforms. Creators can monetize their content frictionlessly, to international audiences, saving 97% on fees, all without answering to the ad networks.
Graaf One
Pre Seed Round in 2019
Graaf One is a Canadian company that operates as a pioneering Lightning Network brokerage, facilitating the purchase of Bitcoin in a swift and cost-effective manner. Its platform leverages advanced lightning network technology to enable efficient and scalable peer-to-peer micro-payments for buying and selling cryptocurrencies. This innovative approach allows clients to manage their cryptocurrency transactions seamlessly, whether they choose to conduct transactions independently or with the assistance of a specialist. By prioritizing user experience, Graaf One aims to simplify the complexities of cryptocurrency trading for its customers.
Bitlum
Pre Seed Round in 2019
Bitlum is a company founded in 2017 and headquartered in Burlington, Massachusetts, specializing in the development of online bitcoin wallets. The firm focuses on building applications utilizing the Bitcoin Lightning Network, which allows for faster and more cost-effective transactions. One of its notable products is Zigzag, an instant cryptocurrency exchange that supports the Lightning Network. This platform enables users to execute nearly instant asset exchanges without the need for user registration, mitigating the typical high fees associated with blockchain transactions by employing payment channels. Through these innovations, Bitlum aims to enhance the accessibility and efficiency of cryptocurrency transactions.
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