F
Fiddler
AI · Palo Alto, United States · Founded 2018
AI observability platform for model monitoring and explanation MoreLess
Fiddler AI is a company that provides a Responsible AI Platform designed to help organizations build and maintain trustworthy AI solutions. The platform offers a suite of tools for monitoring, explaining, validating, and analyzing machine learning models in production.
The company primarily serves data science and MLOps teams in enterprises that are deploying AI models at scale. These clients operate in various sectors, including financial services, healthcare, and technology, where the reliability and fairness of AI systems are critical.
The business model is based on a subscription-based software-as-a-service (SaaS) model. Customers pay for access to the Fiddler AI platform, with pricing likely tiered based on the number of models monitored and the volume of data processed. This model provides a recurring revenue stream for the company.
Fiddler AI's platform addresses the growing need for transparency and accountability in artificial intelligence. It enables organizations to understand why their models make certain decisions, identify and mitigate biases, and ensure compliance with regulatory requirements. By providing these capabilities, Fiddler AI helps its clients reduce risks associated with AI, improve model performance, and build trust with their customers.
Keywords: Responsible AI, AI observability, MLOps, model performance management, explainable AI, model monitoring, AI governance, machine learning, data science, AI analytics
Company overview
Fiddler company information
The essential company record, classifications and operating signals in one place.
- Status
- Operational
- Founded
- 2018
- Headquarters
- Palo Alto, United States
- Employees
- 114
- Open positions
- 5
- Dealroom signal
- 82.2
- Investment activity
- 1 companies · latest Apr 2026
- Capital deployed
- —
- Preferred round
- ACQUISITION
Valuation & funding
Fiddler funding history
Company financing events and reported valuations.
| Deal type | Date | Amount | Valuation | Investors | Source |
|---|---|---|---|---|---|
| SERIES COther financing | Jan 2026 | $30M | $120M | Insight Partners · LDV Partners · Mozilla Ventures · Lightspeed Venture Partners | ↗ |
| SERIES BOther financing | Dec 2024 | $19M | $160M | ISAI Gestion · Lux Capital · Cisco Investments · Samsung Next | ↗ |
| LATE VCOther financing | Apr 2023 | $0 | — | Alteryx | ↗ |
| SERIES BOther financing | Jun 2021 | $32M | $128M | Lightspeed Venture Partners · Lux Capital · Amazon Alexa Fund · Lockheed Martin Global | ↗ |
| EARLY VCOther financing | Aug 2020 | $0 | — | Lockheed Martin Global | — |
| SERIES AOther financing | Sep 2019 | Bloomberg Beta · Haystack · Lightspeed Venture Partners · Lux Capital | ↗ | ||
| SEEDOther financing | Oct 2018 | Lightspeed Venture Partners · Haystack · Bloomberg Beta | ↗ |
Financials
Revenue and workforce over time
Available revenue and workforce history. Fields without reported data are omitted.
| Year | Revenue | Growth | Employees |
|---|---|---|---|
| 2026 | $8.4M | 0% | 114 |
| 2025 | $8.4M | 0% | 104 |
| 2024 | $8.4M | 0% | 80 |
| 2023 | $8.4M | 0% | 69 |
| 2022 | $8.4M | +94.9% | 66 |
| 2021 | $4.3M | +65.4% | 61 |
| 2020 | $2.6M | — | 34 |
Growth signals
Fiddler website traffic
Latest recorded traffic for Fiddler is 55K monthly website visits, down 14.1% over the last three months. Fiddler's team grew 9.6% over the past year.
Hiring
Open positions at Fiddler
Current openings linked to this company in Dealroom.
Comparisons
Fiddler compared with similar companies
Dealroom’s weighted taxonomy model identifies the closest operating peers. Company identity and context stay open; selected comparison metrics preview what is available in the platform.
Capital deployed
Fiddler investments and acquisitions
Recent portfolio relationships for companies that also act as investors or acquirers.
Talent graph
Fiddler's talent
Source: Dealroom Talent Intelligence.
Global footprint
Where Fiddler has talent and traffic
team presence
In the news
Latest news about Fiddler
Recent press, funding announcements, and product moves mentioning Fiddler — open to read from the original sources.
Market sentiment
What the market is saying about Fiddler
An AI-synthesized read of the highest-engagement posts about Fiddler on X over the past 7 days. We rank by likes & retweets, ignore corporate channels, and surface the themes that broke out from real people.
Reading the room on X — pulling top posts and synthesizing themes…
Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour
See Fiddler’s full profile on Dealroom
Request a free trial to see the complete deal history, financials, people graph and growth signals.
Takes under a minute. Already use Dealroom? Log in.






























