Top 5 Renewable Energy Angel Investors in Singapore in September 2025

Last updated: Sep 2025 A list of 5 angel investors that invest in Renewable energy startups based in Singapore. We rank investors based on the number of investments they made in Renewable energy companies from Singapore. We update this investor list every month.

Top 5 Renewable Energy Angel Investors in Singapore in September 2025

Investor	Renewable Energy Singapore investments
Liu Xiaosong	1
T. Chen Fong	1
Steve Melhuish	1
David Pardo	1
Ramez Naam	1

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Investor list

Liu Xiaosong

Investment focus

Robotics, Manufacturing, Semiconductor
Angel, Series B
China, Singapore

Portfolio highlights

Yizhun Intelligent — Yizhun Intelligent is an AI & Robotics company.
Quantified Energy Labs — Leaders in on-site PV module quality evaluation

Dr. Fong is a Professor Emeritus at the Faculty of Medicine, University of Calgary. He was formerly the Head of the Department of Radiology at the University of Calgary and the Calgary Health Region. Dr. Fong is active in funding and nurturing start-up companies. Over the past two decades, he funded over 50 companies in diverse technology sectors,with an emphasis in medical devices. Dr. Fong is the co-founder and board member of Calgary Scientific Inc. and is also on the board of Clarius Mobile Health, Cohesic Inc. and Innovere Medical. In addition to seed investing, Dr. Fong is active in the Calgary community sitting on six charitable boards and foundations.In 2015, Dr. Fong joined the Creative Destruction Lab (CDL) at the University of Toronto business school as a mentor. CDL helps young entrepreneurs to shape or pivot their nascent ideas. He is widely credited with launching CDL at the Haskayne School of Business at the University of Calgary, bringing together seasoned business leaders from Alberta, Canada and the US to grow budding companies. Dr. Fong is on the Strategic Advisory Board of CDL and a Fellow of CDL in Toronto, Montreal, Calgary and Vancouver. In 2017, Dr. Fong was named to the Order of Canada for his contribution to medical technology innovation and philanthropy.

Investment focus

Software, Artificial Intelligence, Biotechnology
Seed, Angel, Pre-Seed
Canada, Singapore, United States

Portfolio highlights

Oncoustics AI — Oncoustics is creating and deploying advanced AI solutions for low cost, non-invasive surveillance, diagnostics, and treatment monitoring of diseases with high unmet clinical need. Unlike other players in the space, Oncoustics does not do image recognition. Instead, Oncoustics applies AI to raw ultrasound signals from readily available handheldultrasound devices to rapidly differentiate healthy versus diseased tissues. There's a wealth of information in these raw signals and this approach reveals novel biomarkers that can be aligned with existing standards and categorization systems. Initially targeting liver disease, a $30B global diagnostic market, Oncoustics has filed a Breakthrough Device Designation Request with the FDA for the OnX that detects liver fibrosis and the 510K is underway. Several follow-on liver products are in development. Oncoustics also has clinical data on other organ indications including prostate, kidney, breast and thyroid diseases and cancers.
SunGreenH2 — SunGreenH2 creates the world's highest performance advanced materials for electrolysis i.e. green hydrogen production. Achieve high efficiency, low cost green H2 production on site for your application in the Power-to-X, Hydrogen refuelling, Energy Storage and Buildings sectors. Revolutionising zero emissions and improving profitability.
EZee Assist — EZee Assist provides instant answers to franchisee operational questions. Continue using preferred channels of support and start receiving instant answers.

Steve Melhuish is the Founder of Rumah, Co-Founder and Board Director at PropertyGuru Group, Founder and CEO at Planet Rise, Founding Partner at Wavemaker Impact, and an Advisor and Investor at Eco-Business and Ampd Energy. He attended the University of Plymouth and the University of Reading.

Investment focus

Real Estate, Internet, Software
Seed, Pre-Seed, Series A
Singapore, India, Philippines

Portfolio highlights

TablePointer — TablePointer is the A.I. and intelligent energy solution for small & medium commercial facilities to optimise energy efficiency, manage assets, upgrade profitability, and unlock sustainability gains right away.
Circular — We are making subscriptions the best way to experience tech. Circular aims to accelerate the circular economy and maximise the useful lives of each tech device to its fullest potential.
Lhoopa — Making homeownership achievable for every Filipino family.

Key lead of international businesses for 18+ years (eBay, PayPal, Mastercard and Blizzard) in eCommerce, Sustainability, Fintech and Gaming by innovating and driving change through Business Strategy, Product Management and UX, Business Operations, Data Management, Retention and Acquisition Marketing management, following five years studying withtop business schools.12+ years of start-up mentoring and investing with a handful of successful exits. Current portfolio value is 3X or 26% IRR.Also built and managed my own start-ups from scratch and/or in a Corporate environment (Joint Venture constructs).Based in Singapore and worked all over the world (France, UK, US, Korea) but focusing on South-East Asia right now.