Company overview

Fiddler is the all-in-one AI Observability and Security platform for responsible AI. Our monitoring and analytics capabilities provide visibility, context and control across development and production. This gives teams actionable insights to build better, more reliable AI agents, and GenAI and ML applications. An integral part of the platform, the Fiddler Trust Service provides quality and moderation controls for AI agents and GenAI applications. Powered by cost-effective, task-specific, and scalable Fiddler-developed trust models — including cloud and VPC deployments for secure environments — it delivers the fastest guardrails in the industry.Fortune 500 organizations use Fiddler to scale AI agents, GenAI, and ML deployments. This helps them deliver high performance AI, avoid costly AI risks, and maximize ROI.
Founded in 2018
Palo Alto, California, USA
105 employees (9 in marketing)
72% recommend to a friend
70% positive business outlook

Salaries

Typical salary range

$160,000 – $202,500

/ yr

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People

Hiring activity

Open marketing jobs over time

8 open now

Headcount trend

Company growth over the last 12 months

Headcount +4% year over year

Funding

Total funding

$94.3M

Last raise

$30.5M

Series C, 2 months ago

Funding history

Jan 2026

Series C Fiddler Labs · $30.5M

Dec 2024

Series B Fiddler Labs · $18.6M

Jul 2023

Venture Round Fiddler Labs

Apr 2023

Venture Round Fiddler Labs

Jun 2021

Series B Fiddler Labs · $32M

Aug 2020

Venture Round Fiddler Labs

Audience

Monthly website visitors
65.5K
Month over month-1.1%
Quarter over quarter+6.9%
Top sourceSearch (43.7%)
Ad budget per month$3.9K
Average search rank41.1
Traffic source mix
Search
43.7%
Direct
43.2%
Referral
7.9%
Social
2.7%
Paid referral
2.3%

LinkedIn followers

Follower count and growth

Total followers

21.4K

12-mo growth

+32.8%

Monthly growth

+3.1%

News

Links