Fulgur Ventures

Amboss Technologies

crypto

Amboss Technologies provides Bitcoin Lightning Network infrastructure. Its products support Lightning node discovery and analytics, liquidity markets, payment operations, yield access, and compliance workflows for node operators, businesses, traders, and institutions.

Amboss Technologies

crypto

Amboss Technologies provides Bitcoin Lightning Network infrastructure and tools. Its products include a Lightning Network explorer, liquidity marketplace, payment infrastructure, yield services, and compliance workflows for node operators, businesses, institutions, and traders.

Ark Labs

crypto

Ark Labs is a Bitcoin infrastructure company building Arkade, an open, programmable execution and settlement layer on Bitcoin that enables instant, low-cost transactions, stablecoins, and digital assets without changing Bitcoin's base layer. Its clients and partners include fintechs, wallets, brokerages, asset managers, and other financial institutions building payments, lending, and rewards products on Bitcoin.

Bitcoin Tribe

crypto

Bitcoin Tribe (Tribe RGB) is a self-custody Bitcoin and RGB asset wallet, live on mainnet, built by BitHyve UK Ltd. It lets users securely manage, send, and receive Bitcoin and RGB digital assets with an on-chain wallet as the default mode, along with recovery, multi-currency, and multi-language support.

Bitrefill

crypto

Bitrefill lets people buy gift cards, mobile top-ups, and bill payments worldwide using Bitcoin and other cryptocurrencies.

Blockstream

crypto

Blockstream develops Bitcoin-focused infrastructure, including software wallets, hardware devices, and layer-2 functionality.

Breez

crypto

Breez builds the Breez SDK, a developer toolkit that lets any app or service add instant, non-custodial bitcoin (via Lightning, Spark, and Liquid) with just a few lines of code. It serves crypto wallets, neobanks, social apps, and payment/remittance platforms such as Klever, Cake Wallet, Deblock, Sorted, and Club Orange, enabling value transfer to be integrated in hours rather than months.

Capital B

crypto

Capital B is a Bitcoin Treasury Company with the objective of accumulating 1% of Bitcoin’s total supply by 2033. The company focuses on maximizing Bitcoin per share through financial engineering and long-term holding. In addition to its Bitcoin accumulation strategy, Capital B provides technology consulting services, including AI-powered Data Intelligence, Web Development, and decentralized technology solutions.

Fold, Inc.

hybrid

Fold, Inc. is a bitcoin-focused personal finance platform. It offers a prepaid debit card, bitcoin buying and selling, bitcoin rewards, ACH bill pay rewards, and bitcoin gift cards for U.S. consumers.

Foundation Devices, Inc.

crypto

Foundation Devices, Inc. builds open-source, security-focused hardware and software that let people control their own Bitcoin keys, digital identity, and high-stakes digital approvals. Its flagship product, Passport Prime, is billed as the first 'Human Authority Hardware' device, combining a Bitcoin hardware wallet, 2FA codes, security keys, and encrypted storage into a single verifiable device. Foundation serves individual Bitcoin holders, privacy-focused users, developers building on its KeyOS platform, and enterprise teams needing hardware-based approval workflows.

Future Holdings AG

crypto

Future Holdings AG is building Switzerland's premier Bitcoin Treasury Company (BTCTC), focused on holding and systematically growing its Bitcoin balance sheet through disciplined capital management. It provides Swiss and international investors with pure Bitcoin exposure in CHF under institutional-grade governance, and offers strategic Bitcoin advisory services and an institutional Bitcoin wallet solution for corporations and institutions.

GoSats

hybrid

GoSats is a platform that allows users to earn rewards in Gold or Sats (Bitcoin) on their everyday spending. It offers a rewards card and gift cards from top brands, transforming purchases into valuable assets.

Hercle

crypto

Hercle is an infrastructure platform that provides cross-border payment rails and digital asset trading services for banks, brokers, fintechs, and payment providers.

JAN3

crypto

JAN3 builds Bitcoin infrastructure and tools that help individuals, enterprises, and nation-states adopt Bitcoin and Layer 2 networks.

KaleidoSwap

crypto

Stealth

LN Markets

hybrid

LN Markets operates a Bitcoin derivatives trading platform. It combines centralized-exchange liquidity with Bitcoin and Lightning Network settlement, offering leveraged Bitcoin futures and options trading plus API access.

Meanwhile Insurance Bitcoin (Bermuda) Limited

hybrid

Meanwhile is the first insurance company for the Bitcoin economy, offering whole life insurance policies denominated entirely in Bitcoin. This allows clients to grow their Bitcoin tax-free within a regulated structure, borrow against their policy's value, and ensure their heirs receive a Bitcoin payout directly.

Neutronpay

hybrid

Neutronpay enables real-time, low-cost transactions globally through the Lightning Network.

NexBridge

crypto

NexBridge is a regulated digital asset issuer that tokenizes publicly traded securities and financial instruments on Bitcoin infrastructure.

Pnkfrg

crypto

Stealth

Relai

crypto

Relai is a Swiss-made, Bitcoin-only financial app that lets users buy and sell Bitcoin while retaining self-custody through a personal wallet and recovery phrase. It also provides services for high-volume private investors and businesses adding Bitcoin to their balance sheets.

Scarce City

crypto

Scarce City operates a marketplace for Bitcoin-focused physical collectibles, art, goods, auctions, and limited-edition drops. It supports bidding and purchases using Bitcoin and selected fiat payment methods, and contributes 5% of marketplace fees to open-source Bitcoin development.

stabble

crypto

stabble is a Solana-native decentralized exchange and automated market maker. It provides swaps, liquidity pools, concentrated liquidity pools, staking, and liquidity-management features for traders and liquidity providers.

STOKR

crypto

STOKR lets businesses raise capital with tokenized securities while providing investors direct access to regulated digital shares.