Teams moving Bitcoin forward.

Lightning Labs

Builds software for Lightning payments and Bitcoin asset infrastructure.

Blockstream

Develops Bitcoin infrastructure across wallets, custody, Liquid and Lightning.

Strike

Builds a Bitcoin financial app and payment services.

Galoy

Develops banking infrastructure with Bitcoin, fiat and stablecoin capabilities.

Lightspark

Develops payment infrastructure spanning Lightning, Spark and broader digital payments.

Braiins

Builds software and tools for Bitcoin mining.

SatoshiLabs group

The group includes Trezor, Invity and Tropic Square; each role belongs to its named team.

Alpen Labs

Works on scaling Bitcoin with zero-knowledge technology.

River

Operates a Bitcoin financial services platform.

Unchained

Builds Bitcoin financial services around collaborative custody.

BitBox / Shift Crypto

Develops the BitBox hardware wallet and companion application.

Foundation

Develops Passport devices, Envoy and related secure hardware and software.

Chaincode Labs

Supports Bitcoin research, engineering and open-source contributions.

Fedi

Builds community software around payments, communication and connected applications.

Breez

Builds tools for adding Bitcoin payments to applications.

Alby

Builds Bitcoin payment tools for applications and users.

ACINQ

A Bitcoin technology company to follow for ecosystem opportunities.

Voltage

Provides Bitcoin and Lightning infrastructure for payment applications.

Merklebaum

Describes its services as Bitcoin engineering, architecture and Lightning integration.

BTCMVP

Describes development services spanning Bitcoin, Lightning and Nostr applications.

Second

Builds Ark-based Bitcoin payment tools and application integrations.

Brink

Supports Bitcoin protocol contributors through developer grants and a London fellowship.

Bitcoin Dev Kit Foundation

Supports the BDK library ecosystem, training materials and open-source contributors.

Btrust

Supports Bitcoin open-source development, education and community programs with a Global South focus.

Spiral

Builds and funds free and open-source Bitcoin projects, including developer and designer support.

OpenSats

Funds Bitcoin-related free and open-source contributions across engineering, research and design.

Bitshala

An India-rooted community offering Bitcoin study cohorts, review clubs and fellowship information.

BTCPay Server

A community-built, self-hosted Bitcoin payment processor with public development and documentation.

Coinkite

Builds Bitcoin hardware and signing devices, including COLDCARD, with firmware and product design work.

Bitrefill

Builds commerce and payment products with Bitcoin and Lightning integrations alongside other digital assets.

Ark Labs

Develops Arkade infrastructure and tools for Bitcoin applications. Its website also describes financial products in development.

Amboss

Builds Lightning routing, liquidity and payment infrastructure, including Magma and developer APIs.

Synonym

Builds Bitkit and open protocols including Pubky, spanning Bitcoin payments, identity and applications.

Start9

Develops StartOS and personal server products for running self-hosted applications and services.

Boltz

Provides Bitcoin and Lightning swap infrastructure with supported SDKs, integration documentation and a local development environment.

Mempool

Builds an open-source Bitcoin explorer and tools for understanding transactions, blocks and network activity.

Relai

Develops a Bitcoin buying and self-custody app, based in Switzerland.

Casa

Builds multi-key self-custody products for Bitcoin and other supported assets, with recovery and hardware-device workflows.

Block · Bitkey & Proto

Block includes Bitkey, a Bitcoin self-custody wallet, and Proto, a Bitcoin mining product team.

The official board returned zero results at review. Dynamic-board availability is uncertain; no opening was verified.

Fold

Builds Bitcoin rewards and financial-app products, with an official company hiring board.

The board linked from Fold’s website explicitly showed no open roles on 14 September 2026.

Bull Bitcoin

Provides a non-custodial Bitcoin exchange and OTC service, connecting Bitcoin purchases and spending.

Product relevance confirmed from the company site; no specific engineering or design vacancy verified.

Nunchuk

Builds multisig wallet, inheritance and developer tooling, including a CLI for policy-controlled wallet automation.

The developer page is a product and integration route, not a job advertisement.

Muun

Develops a mobile self-custodial Bitcoin wallet supporting on-chain and Lightning payments, with recovery tooling.

A team to study for mobile payment and recovery UX; no current vacancy verified.

OCEAN

Operates a Bitcoin mining pool and develops DATUM tooling for miner-controlled block templates.

Mining and infrastructure relevance is confirmed; the team page is not evidence of an open role.

Wizardsardine

Builds Liana wallet infrastructure and offers Bitcoin protocol, architecture and code review services.

Liana has an open-source contribution route. The company describes Revault as a prototype on hold. Services are not independently vetted.

AnchorWatch

Builds Trident Bitcoin vault infrastructure and offers custody and insurance products for individuals and organizations.

Product relevance confirmed; no developer or designer vacancy verified. Product geography does not establish employment eligibility.