United States · Series A startup

Who invested in LMArena

2 rounds we have observed, with the 9 investors named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

AIBig Data & AnalyticsDeveloper Tools

Raised 10 months agoValuation: $1.7B, Mar 2026

Funding summaryUpdated 5 Nov 2026

$250Mraised across 2 rounds since 2025, from 3 sources

$100MSeed$150MSeries A
Latest round
Series A, $150MJan 2026
Led by
Felicis
Step-upi
1.5×
Investors
9 (3 led)
See who backed them

The funding story

Each circle is a round, placed by date and sized by amount. The line above is the running total.

2026
$100MSeed$150MSeries A
First round
Seed, $100M
May 2025
Biggest round
$150M
Series A · Jan 2026
Between rounds
8 months
from the last two

The rounds

  1. Jan 2026
  2. May 2025

Who was in which round

The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.

Everyone who backed them

Andreessen HorowitzVC firm2rounds, led 1
FelicisVC firm2rounds, led 1
UC InvestmentsVC firm2rounds, led 1
Kleiner PerkinsVC firm2rounds
The House FundAccelerator1round
LDV PartnersVC firm1round
Laude VenturesVC firm1round
LDVPVC firm1round

Missing a round, or an investor who was in one? Tell us.

Quick answers about LMArena

Who invested in LMArena?

LMArena's investors include Andreessen Horowitz, Felicis, UC Investments, Lightspeed Venture Partners and Kleiner Perkins, and 4 more on record. Felicis led its latest round.

How much has LMArena raised?

LMArena has raised $250M across 2 rounds since 2025.

When did LMArena last raise?

LMArena's most recent round was a Series A of $150M in Jan 2026, led by Felicis.

What was LMArena's biggest round?

Its most recent round, $150M in Jan 2026, is also its largest on record.

Who backed LMArena first?

LMArena's first round on record, in May 2025, was backed by Andreessen Horowitz, UC Investments and Lightspeed Venture Partners and 2 others.

What stage is LMArena at?

LMArena's latest named round is a Series A, in Jan 2026.

Where is LMArena based?

LMArena is based in the United States.

Who led LMArena's rounds?

Andreessen Horowitz led the Seed in 2025; Felicis led the Series A in 2026.

Companies like LMArena

In the same sector, and raised in the last eighteen months.

Find investors like these

Search every investor by what they have actually funded, then narrow to your stage and market. Free.