Photon raises $4.5M seed
Announced 1 October 2026
◆ The Round
Photon raised $4.5M in seed funding, announced on 1 October 2026, led by Gradient Ventures, A*, with participation from Vercel, HongShan, Z Fellows, Llama Ventures, Karman. The round is tracked live by Fusion42 as part of the Raise fund database and the Scout startup database.
◆ About Photon
AI startup that helps developers build agents that work over messaging apps like iMessage and WhatsApp. Photon is based in United States and currently at seed stage, operating in Developer Tools, AI & ML.
◆ Investors
LeadGradient Ventures, A*
ParticipationVercel, HongShan, Z Fellows, Llama Ventures, Karman
◆ Investing funds on Raise
◆ Market context
FGV Capital is profiled on Raise, Fusion42's database of venture funds — where each investor's thesis, cheque size and other tracked backings can be followed. This funding event is a citable node in Fusion42's market graph: it links Photon's Scout profile to the funds behind the round and to related Wire analysis, and is refreshed from public announcements as the round is confirmed or extended. It is the same live market data Arthur reasons over when benchmarking a founder's own raise against what is closing in the market right now.
◆ Explore the market
◆ FAQ
How much did Photon raise?
Photon raised $4.5M in its seed round, announced 2026-10-01.
Who invested in Photon's seed round?
The round was led by Gradient Ventures and A*, with participation from Vercel, HongShan, Z Fellows, Llama Ventures and Karman.
What does Photon do?
AI startup that helps developers build agents that work over messaging apps like iMessage and WhatsApp.
Verified 1 October 2026 · Sources: public filings