Ether Capital Leadership Team

Som Seif

Co-Chief Investment Officer & Executive Chairman

Founder & CEO of Purpose Investments established in 2013. Previously, founded Claymore Investments before being sold to Blackrock Inc. in 2012. Prior to Claymore, worked in investment banking with RBC Capital Markets.

Brian Mosoff

Chief Executive Officer

Brian Mosoff is an entrepreneur and angel investor focused on blockchain and cryptocurrencies. He is an expert on web 3 technologies, decentralization and peer-to-peer models and has been an active member of the cryptocurrency community in Toronto and across North America. Since early 2013, he has run a Toronto-based family office that invested in early stage projects such as Ethereum’s 2014 crowdfunding. Other platform investments include Bitcoin, Filecoin, Polkadot, Urbit, Golem and Tezos.

Stefan Coolican

President and Chief Financial Officer

Stefan was previously a Director in the investment banking group at Cormark Securities, one of Canada’s leading independent investment banks. He spent ten years at Cormark specializing in corporate finance and M&A advisory for a variety of sectors including technology, cleantech, industrials and media. Most recently, Stefan led Cormark’s investment banking efforts in blockchain and cryptocurrency. He has been actively investing in bitcoin, ether and other cryptocurrency projects and protocols since 2015. Stefan has an MSc in Economics from the London School of Economics, an LLB from Osgoode Hall Law School and an MBA from Schulich School of Business. He is a member of the Law Society of Ontario.

Ben Roberts

Co-Chief Investment Officer & Director

Co-Founder & CEO of Citizen Hex , an algorithmic market making business for Ethereum tokens backed by OMERS, Purpose & VersionOne. Founder of, which was acquired by Aivren in 2017. Previously worked at Thalmic Labs. Early adopter and miner of Bitcoin and Ethereum currencies.

Boris Wertz

Lead Independent Director

Founding partner of VersionOne. Seasoned entrepreneur who sold his company, to Amazon. One of the top early-stage tech & blockchain investors in North America.

Liam Horne


Co-Founder of  L4 , a research centre and venture studio for blockchain technology startups. Co-Founder of Hack the North, and a previous winner of the Thiel Fellowship.

John Ruffolo


CEO of OMERS Ventures, the venture arm of OMERS. Board Member of top technology companies including Hootsuite and D2L (Desire2Learn).

Joey Krug


Co-Founder of Augur, a decentralized prediction market. Co-Chief Investment Officer of Pantera Capital, a leading blockchain investment firm & institutional owner of cryptocurrencies.

Colleen McMorrow


Corporate Director at Exco Technologies Limited. Former Audit Partner at Ernst & Young.

Cam di Prata


Founder and Managing Partner of Gibraltar & Co., a venture capital firm. Former EVP & Head of Corporate and Investment Banking at National Bank Financial.