Firsthand

Firsthand has built the first AI-powered Brand Agent platform, transforming the way marketers and publishers engage consumers through their own AI agents, anywhere online.

Latest funding

$26M Series A · March 7, 2025

Led by Radical Ventures · Source: finsmes.com

All 2 rounds ↓

Website: firsthand.ai.

X: @FirsthandLabs · 79 followers.

LinkedIn: 99490191.

Categories: AI agents Commerce and retail Consumer and social.

Sectors: Brand & Retail, Enterprise & AI.

Stage: Series A.

Based in: United States.

Last round: Mar 7, 2025 · 615 days ago.

On Recent Funding since: Sep 28, 2026.

Signals

X account@FirsthandLabs · created Jan 13, 2024 (2 years old) · 79 followers

Website registeredApr 5, 2021 (5 years old)

Funding rounds

March 7, 2025
Series A · $26M
RRadical Ventures (lead)
Source: finsmes.com
Silicon Valley Enterprise & AI Batch 16
PPlug and Play · batch
Source: public.dxp.playbook.vc
January 13, 2024
X account created
April 5, 2021
Website created

Founders and team

MR
Michael Rubenstein co-CEO, Co-Founder, & Board Director

@mrubenstein99 · source: firsthand.ai
JH
Jonathan Heller co-CEO, Founder, & Chairman

source: firsthand.ai
WW
Wei Wei CTO, co-founder, & Board Director

source: firsthand.ai

Investors

Companies like Firsthand

OOpenWeb$170M Series B+ · Oct 2022
PPopwallet
BBluefish$43M Series B+ · Apr 2026
RRxDiet$3M Seed · Jul 2024
LLoora$12M Series A · Feb 2024
TThingsHappenPre Seed · Jul 2026

Other companies backed by Radical Ventures

TTrajectory$45M Series A · Nov 2026
MMantic$25M Seed · Sep 2026
PPixxel$100M Series B+ · Sep 2026
EEmerald AI$150M Series A · Aug 2026
GGeneralist$200M Series B+ · Aug 2026
VVeeda AI$90M Seed · Aug 2026

Radical Ventures portfolio →

Sources and API

Every amount links to the page it came from. * Estimated from an accelerator's published standard deal, not a company-specific disclosure. How Recent Funding sources and verifies funding data. The same data as JSON: /api/v1/companies/firsthand (get a free API key).