mabl
AI-powered low-code platform that builds and maintains software tests for enterprise QA teams.
On the record
Checkpoint: Whether mabl closes a new funding round or reaccelerates ARR and web traffic
The call
mabl still has real enterprise customers and revenue, but 56 months without new funding and falling web traffic sit alongside AI coding agents now doing its core task natively.
mabl is a nine-year-old company that helps big businesses like Mercedes-Benz and JetBlue automatically write and maintain software tests. For years, mabl's main strength was that it could generate and fix tests better than competitors, but now AI coding tools like Copilot and Claude can do the same thing directly inside a programmer's editor, making mabl's original advantage less unique. The company has pivoted to become a supervisor tool that coordinates with these AI agents, but this strategy has not yet been proven to work in the real world, and the growth numbers suggest customers are moving elsewhere or staying put. The game-changing moment will be if GitHub or another big tech company bakes automated testing directly into their AI coding tool in the next year or so, which could make mabl unnecessary.
Why
01
AI pressure: GitHub Copilot, Cursor, Claude Code. These coding agents now write and repair tests natively, shrinking the exact job mabl was built to automate. Could AI do the core job? Yes, likely.
02
Bigger players: Tricentis and SmartBear. Neither has shipped agentic test automation yet, but both have the scale to copy mabl's pivot fast if it works. Could a giant copy it? Yes, easily.
03
What protects it. Enterprise workflow lock-in and years of stored test-run data at accounts like Mercedes-Benz, JetBlue, and Workday.
What would change this call
GitHub or Atlassian ships native 'run and maintain tests' inside Copilot/Actions within 18 months. Would show the coding-agent kill shot to mabl's core task has landed.
mabl announces a new funding round (Series D, down-round, or acquisition) by Q4 2026. Would show whether investors still back mabl's agentic pivot after 56 months without new capital.
mabl's web traffic and ARR figures in late-2026 reports show reacceleration instead of continued decline. Would indicate the MCP/agentic-supervisor pivot is converting into real growth, not just tactical repositioning.
mabl announces a new funding round (Series D, down-round, or acquisition) by Q4 2026. Would show whether investors still back mabl's agentic pivot after 56 months without new capital.
mabl's web traffic and ARR figures in late-2026 reports show reacceleration instead of continued decline. Would indicate the MCP/agentic-supervisor pivot is converting into real growth, not just tactical repositioning.
Key numbers
- $76.1M raised total, last round Nov 2021
- Web traffic down 31% QoQ
- Estimated ARR near $17.9M-$18M
Named risks
- Core test-authoring and maintenance value proposition being commoditized by native AI coding-agent test generation.
- No new funding round in 56 months as of June 2026, raising down-round or cash-runway concerns.
- Web traffic declined 31% quarter-over-quarter in mid-2026, signaling possible demand erosion.
- Auto-healing feature flagged as an audit-transparency weakness for regulated-industry customers.
- CMO departure to Camunda amid a crowded, fast-moving competitive field.
Rivals, as read in July 2026
| Rival | Direction | Evidence |
|---|---|---|
| Tricentis | contesting | Enterprise incumbent (Tosca) adjacent to mabl's category, not yet shipping agentic testing as of 2026-06-22 |
| SmartBear | contesting | TestComplete positioned as structurally able to enter agentic testing, per 2026-06-22 industry ranking |
| Katalon | gaining on | Listed among crowded AI-native testing cohort competing directly with mabl as of 2026-06-22 |
| QA Wolf | gaining on | Named repeatedly in 2026 buyer guides as a close mabl alternative |
| GitHub Copilot / Claude Code / Cursor | gaining on | Native test generation in coding agents threatens to commoditize mabl's core authoring task, 2026 |
| Momentic / Checksum / testRigor | gaining on | Newer AI-native entrants cited alongside mabl in 2026 top-10 test automation rankings |
Questions people ask
- Is mabl profitable in 2026?
- No public profitability data exists. Third-party estimates put mabl's ARR at roughly $17.9M as of October 2024, up from $12.9M in 2022, but no company has confirmed net profitability, and no new funding round has landed since November 2021, suggesting thin cash reserves.
- Could AI replace mabl?
- mabl's core task, automated test authoring and maintenance, is being commoditized by native test generation in Claude Code, Cursor, and GitHub Copilot. mabl responded by shipping an MCP server (March 2026) and CLI tooling (July 2026) to become a supervisory layer rather than be replaced outright.
- Who owns mabl?
- mabl is privately held and venture-backed, with Vista Equity Partners leading its $40M Series C on November 18, 2021, alongside GV, CRV, Presidio Ventures, and Amplify Partners. No acquisition or ownership change has been publicly reported as of mid-2026.
- Who is mabl's biggest competitor?
- mabl competes with AI-native testing tools like Katalon, QA Wolf, testRigor, Momentic, and Checksum, plus enterprise incumbents Tricentis (Tosca) and SmartBear (TestComplete), none of which are structurally blocked from entering mabl's agentic-testing niche as of June 2026.
- How much funding has mabl raised total?
- mabl has raised $76.1M across four disclosed rounds: $10M Series A (Feb 2018, CRV), $20M Series B (Sept 2018, GV), $6.1M venture round (May 2020), and $40M Series C (Nov 18, 2021, Vista Equity Partners). No new round has been announced since.
- What is mabl's valuation?
- mabl's post-money valuation at its November 2021 Series C was estimated at $360M to $432M depending on source, implying roughly 20 to 24 times its later 2024 estimated ARR of $17.9M, a rich multiple given no funding since.
Timeline
- 2026-07Shipped CLI-based local headless test authoring for coding-agent workflows and new governance API endpoints
- 2026-05-18Deprecated local MCP server in favor of cloud MCP
- 2026-05Launched MCP integration with Atlassian Rovo (Jira/Confluence) and self-correcting test authoring
- 2026-04-23Launched Active Coverage agentic testing platform and 2026 State of Quality Engineering Report
- 2026-03Launched cloud Model Context Protocol server for Claude Code, Cursor, GitHub Copilot
- 2021-11-18Raised $40M Series C led by Vista Equity Partners at est. $360-432M post-money valuation
- 2020-05Raised $6.1M venture round
- 2018-09-18Raised $20M Series B led by GV (Google Ventures)
- 2018-02Raised $10M Series A led by CRV
Revision history
21 July 2026
First assessed. Protection under test. The text above is fixed as of this date and is not edited afterwards.
In the same band
Sources
- mabl Raises $40 Million Series C (2021-11-18)
- How Much Did Mabl Raise? Funding & Key Investors (2025-05-15)
- Mabl announces $20 million Series B (2018-09-18)
- mabl - Headcount, Funding & Open Jobs (2026-06-20)
- $0 • 2017 Founded (2024-12-19)
- Management and Employees List
- mabl Funding
- mabl Unveils Next-generation Agentic Testing Platform (2026-04-23)
- March 2026, mabl help (2026-04-01)
- April 2026, mabl help (2026-05-04)
- June 2026, mabl help (2026-07-02)
- Top 10 AI Test Automation Companies 2026 (2026-06-22)