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ConsenSys

ConsenSys is the Ethereum software company Joseph Lubin founded in November 2014. It builds the wallet, node infrastructure and developer tooling most of the network runs on — MetaMask, Infura, Truffle and the Linea layer-2 — and describes itself as over 700 people.

BlockchainFounded 2014consensys.io
700+technologists, designers, cryptographers, product thinkers and researchers, per the company's own about pageconsensys.io/about, read 2026-09-05
$450MSeries D, announced March 2022consensys.io/about timeline, read 2026-09-05
Nov 2014founded by Joseph Lubin, a co-founder of Ethereumconsensys.io/about, read 2026-09-05

The people

Henry ChanCo-founder · 1 TechTO talk
JL
Joseph LubinFounderprofile coming

What they build

MetaMaskSelf-custody wallet and browser extension for Ethereum, now with a card and a stablecoinProduct page ↗
InfuraHosted Ethereum node API so applications need not run their own infrastructureProduct page ↗
LineazkEVM layer-2 networkProduct page ↗
TruffleSmart-contract development toolkitProduct page ↗
Consensys DiligenceSmart-contract audits and security servicesProduct page ↗

Open roles via the TechTO Job Board

Working at ConsenSys

Browse open roles across the community on the TechTO Job Board — Canada’s most connected tech network. ConsenSys’s roles show up here whenever they post.

Open roles on the TechTO Job Board ↗Or their own careers page: consensys.io/careers ↗

Jobs live on jobs.techto.org — the only structured source. We link to it rather than scraping career sites, so the board is always the source of truth.

On the TechTO stage

Every talk is searchable — ask the archive about ConsenSys

About

ConsenSys was started in November 2014 by Joseph Lubin, a co-founder of Ethereum, and describes itself as "a global blockchain company focused on building and scaling tools and enterprise software products powered by Ethereum". Its products sit at several layers of that stack at once: MetaMask, the wallet and browser extension most people use to hold Ethereum assets; Infura, the API that lets applications reach the network without running their own node; the Truffle developer toolkit; Linea, a zkEVM layer-2; and Consensys Diligence for smart-contract security. It has since added consumer products including the MetaMask Card and a MetaMask stablecoin.

The company says it employs more than 700 technologists, designers, cryptographers, product thinkers and researchers, and supports millions of users and thousands of developers. It raised a $450 million Series D in March 2022.

Henry Chan brought the argument to the TechTO stage in December 2017, and framed blockchain in Innovator's-Dilemma terms — disruptive because it can be an order of magnitude more efficient than the status quo, starting in a market incumbents ignore and moving up. His worked example was buying a share in Canada: know-your-customer checks taking a business day or two, three business days to move money into a trading account, and three more for clearing and settlement, against a blockchain settlement he put at fourteen seconds. He then had the room open uPort, ConsenSys's self-sovereign identity wallet, and walk through attesting a claim about themselves.

Backers

Venture-backed. The company states a $450 million Series D in March 2022 on its own timeline; it does not name the investors on the pages read here, so none are listed.

Quick answers

What does ConsenSys do?

It builds Ethereum software: the MetaMask wallet, the Infura node API, the Truffle developer toolkit, the Linea layer-2 network and smart-contract security services. Joseph Lubin, an Ethereum co-founder, started it in November 2014.

How big is ConsenSys?

Its own about page says more than 700 technologists, designers, cryptographers, product thinkers and researchers, supporting millions of users and thousands of developers. It raised a $450 million Series D in March 2022.

Has ConsenSys appeared at TechTO?

Yes. Henry Chan presented "Blockchain: A Disruptive Tool" in December 2017, walking the room through clearing and settlement times in Canadian equities and demonstrating uPort, ConsenSys's self-sovereign identity wallet.

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Maintained by TechTO · facts sourced and dated · last reviewed Sep 5, 2026