We are Greythorn

As digital natives and seasoned investors, our team has provided consultancy and advisory services to over 50 blockchain and financial technology start-ups since 2011. As advocates of blockchain technology, the team set up cryptocurrency mining operations in 2013, advised and serviced companies aiming to launch their projects from 2016 to 2017, and has invested in decentralised finance since 2019.
Experienced in investing in traditional equity markets and blockchain companies. Early adopter of digital assets and co-founded a decentralised finance application that provides wallet services, swaps and DeFi products. Previously in the private equity arm of one of Singapore’s leading asset management funds, Dymon Asia Capital. Previously the fund manager at Blockchain Ventures.

Ryan Ang

Executive Director &
Investment Committee Member
Early adopter of digital assets since 2011, founded Garuda Crypto, The Cryptocurrency Fund Project and Kalian Cryptocurrency Fund, along with being deeply experienced in DeFi and dApps since 2019. Previously an ex-NAB Specialised Transaction Management Associate, experienced in fixed income structured products, KYC/AML, FATCA and CRS reporting. Holds a Master of Applied Finance from Monash University.

Jae Sik Choi

Portfolio Manager

Experienced in investing and advising seed-stage start-ups. Managing Partner at Blockchain Ventures, with experience in managing over $500M in digital assets. Seed-stage investor in Polkadot, Pundi X, Fantom and IOTeX. ICO advisor and angel investor for Filecoin, Polkadot, New Kind of Network. Experienced Bitcoin and Ethereum miner, managed more than 1.5% of the world’s hashpower at his peak.

Jayden Wei

Advisor & Investment 
Committee Member
A qualified lawyer and a graduate member of AICD. Experienced in investment banking, finance, and investment management. Currently Fund Management Advisor for Providence Asset Group and Managing Director of Hatchstone Capital. Previously CEO of VentureCrowd, Director of Port Hedland International Airport and Australia Pacific Airports Co., and Associate Director at AMP Capital’s Global Airports Group.

Sunny Yu

Advisor & Investment
Committee Member
Qualified accountant (CPA) and lawyer with ​15+ years of experience in the financial industry and strategy advisory. Specialises in project financing, infrastructure and telecommunication. Currently Managing Director of Hatchstone Capital, Fund Management Advisor for Providence Asset Group. Previously executive roles at Telstra, KPMG, Royal Bank of Scotland and Advisian/Worley Parsons.

Andrew Kuik

Advisor & Investment
Committee Member
Experienced in analytics across derivatives markets, focused on volatility & futures. Specialises in risk profiling & portfolio management. Previously involved as a lead data analyst within the transport & manufacturing sectors across the Asia Pacific.

Chiraag Patel


Experienced in fundamental and technical analysis of traditional equity and options markets. Well-versed in providing essential data for informed decision-making. Previous experience as an accountant at SPS.

Junrong Lu


Experienced in data analytics, market microstructure, and quantitative macroeconomic modelling. Specialises in programming, project research and valuation. Previous experience in financial controlling with Daimler Greater China Ltd. Holds a Master of Applied Economics from Australian National University.

Dilin Wu


Joined the team carrying a strong interest in exploring Blockchain’s real world applications. With her past experiences in both marketing and accounting, from branding and social media management to budgeting and account management, she works to maintain and communicate accurate financial and marketing data to stakeholders.

Suzi Zhen

Account Officer

Experienced in graphic design, tentpole marketing and lead generation. She brings over 1 year of experience helping non-profit organisations maximise engagement through organic digital campaigns. Previous experience as a Tax Advisory Intern for Deloitte Cambodia. Holds a Master of Digital Marketing from the University of Melbourne.

Sera Mao

Graphic Designer