United States · 
Who invested in Weights & Biases?
Weights & Biases's investors include Coatue, Gaingels, Insight Partners, Sapphire Ventures and Trinity Ventures, and 5 more on record.
20192020202120222023
$5.0MSeries A$15MRound?Venture
United States · Venture startup
Who invested in Weights & Biases
Funding summaryUpdated 26 Oct 2026
$20Mraised across 3 rounds since 2018, from 3 sources
$5.0MSeries A$15MRound
- Latest round
- VentureSept 2023
- Biggest round
- $15MRound · May 2019
- Investors
- 10 (1 led)
The funding story
Each circle is a round, placed by date and sized by amount. The line above is the running total.
- First round
- Series A, $5.0M Jun 2018
- Biggest round
- $15M Round · May 2019
- Usual gap between rounds
- 4.3 years the median of 2
The rounds
- Sept 2023VentureAmount undisclosed5 new
Source recordedSEC filing: $50M sold, first sale Jun 2023
- May 2019
- Jun 2018
Founders and team
From the SEC filings it signed: 6 on the team.
- Cameron KinlochExecutive Officeri
- Chris Van PeltExecutive Officer, Directori
- Lukas BiewaldExecutive Officer, Directori
- Mariah NagyExecutive Officeri
- Shawn LewisExecutive Officer, Directori
- Yan-David ErlichExecutive Officeri
On the board, as filediDan ScholnickGeorge MathewThomas Laffont
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.
Series A2018Round2019Venture2023
CoatueL
Gaingels
Insight Partners
Sapphire Ventures
Trinity VenturesNVIDIA
Bloomberg Beta
BondNat FriedmanRichard Socher
CoatueLGaingelsInsight PartnersSapphire VenturesTrinity VenturesNVIDIABloomberg BetaBondNat FriedmanRichard SocherEveryone who backed them
Missing a round, or an investor who was in one? Tell us.
Also claim to have backed them
These 7 firms list Weights & Biases as a portfolio company on their own websites, but no report of a round names them. They are the firms' own claims, kept apart from the rounds above.
Quick answers about Weights & Biases
How much has Weights & Biases raised?
Weights & Biases has raised $20M across 3 rounds since 2018. One round did not disclose an amount, so the total is a floor.
When did Weights & Biases last raise?
Weights & Biases's most recent round was a Venture in Sept 2023.
What was Weights & Biases's biggest round?
Weights & Biases's largest round on record is $15M (Undisclosed round), in May 2019, led by Coatue.
Who backed Weights & Biases first?
Weights & Biases's first round on record, in Jun 2018, was backed by Trinity Ventures and Bloomberg Beta.
What stage is Weights & Biases at?
Weights & Biases's latest named round is a Venture, in Sept 2023.
Where is Weights & Biases based?
Weights & Biases is based in the United States.
Who led Weights & Biases's rounds?
Coatue led the Undisclosed round in 2019.
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