Halcyon(US)
United States
- San Francisco, CA
- 17/03/2026
- Series A
- $21,000,000
We use AI to make energy information easy to find and analyze
- Industry Software Development
- Website https://halcyon.io/
- LinkedIn https://www.linkedin.com/company/halcyon-io/
Related People
Nat BullardCo Founder
Singapore -
Singapore
I have two decades' experience in energy systems and building information systems and platforms.
I am a company founder, advisor, strategy facilitator, and keynote speaker on decarbonization technology, policy, markets, and strategy. I am co-founder of Halcyon, an AI-assisted search and information platform that helps those navigating the energy transition and decarbonization. I am also a member of the advisory boards of Arcadia and Ember.
I spent 15 years with BloombergNEF, joining prior to New Energy Finance's acquisition by Bloomberg in 2009. There, I covered US markets, solar, and global executive strategy, concluding my time as the group's Chief Content Officer. While at BloombergNEF I began my weekly writing as well, which later moved to Bloomberg Opinion and then, Bloomberg Green. I wrote that column for nearly a decade, reaching nearly 300,000 subscribers.
I am based in Singapore. The full timeline: Decatur (Georgia), Cambridge (Massachusetts), Cairo, New York City, Bologna, Washington DC, San Francisco, Hong Kong, Washington DC (again), Singapore.
Forage | $40,000,000 | (Jun 5, 2026)
InCharge Energy | $46,000,000 | (Jun 5, 2026)
Oak Hill Bio | $32,500,000 | (Jun 5, 2026)
Terra AI | $20,000,000 | (Jun 5, 2026)
Town | $55,000,000 | (Jun 5, 2026)
OFFROAD | $7,000,000 | (Jun 5, 2026)
Scispot | $8,000,000 | (Jun 5, 2026)
Scotch | $20,000,000 | (Jun 5, 2026)