Web Analytics

3 Latest Announced Rounds

  • $3,500,000
    Seed

    2 Investors

    Technology, Information and Internet
    Mar 17th, 2026
  • $4,597,680
    Seed
    Software Development
    Mar 17th, 2026
  • $4,250,000
    Seed

    3 Investors

    Insurance
    Mar 17th, 2026
$1,282.39M Raised in 54 Funding Rounds in the past 7 Days - View All

Funding Round Profile

Halcyon(US)

start up
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


Related People

Nat BullardCo Founder

Nat Bullard 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.