Siteimprove
Updated 2026-10-02Web-governance incumbent from 2003, now selling AI-search visibility and agentic content tooling to enterprise web teams. Customers include Barclays, Shell, and Danske Bank. $55M raised, majority-owned by Nordic Capital. Recent releases: Advanced AEO Insights, a Content Writing and Optimization Agent, and an MCP server.
Three scores, refreshed weekly from live market signals rather than a once-a-year analyst report. Presence is how established a vendor is in the market right now. Velocity is how fast they are shipping, raising, and winning customers. Agent Readiness is how easily your own agents can build on them through an API, MCP server, SDK, or CLI. Scores are relative across the vendors we track; the raw inputs ship in the downloadable dataset.
The Solution & Approach
Siteimprove is a 20-year-old web-governance platform that retrofitted itself into AEO. The base product is accessibility, SEO quality, content compliance, and analytics for enterprise web teams. The AEO layer sits on top of that base rather than replacing it.
The retrofit ran through three moves. Siteimprove acquired MarketMuse in October 2024 for content intelligence, changed CEOs in March 2025 to Nayaki Nayyar of Securonix, then rebuilt as Siteimprove.ai in August 2025, an agentic content intelligence platform running on Amazon Bedrock with Amazon Nova models. Its Search agents target "search engines, LLMs, and AI discovery platforms." The AEO capability got a name in April 2026 at Adobe Summit: Advanced AEO Insights, tracking AI citations, share of answers, brand sentiment, competitive position, and revenue attribution across answer engines.
The direction since then is measure, then produce, then embed. June 2026 added a Content Writing and Optimization Agent with AEO insights built into the draft, plus a PDF Remediation Agent. Three weeks later Siteimprove shipped an MCP server that puts the Accessibility Agent inside Claude, Lovable, VS Code, and Figma, checking content while an AI tool generates it. Regulation is the pull underneath all of it: the European Accessibility Act, Section 508, and ADA Title II push the same buyer that the AEO story is aimed at, and the August 2026 FedRAMP Ready designation opens the federal channel where both pitches land on one desk.
Best for
Large enterprise and public-sector web teams already running accessibility and SEO governance at scale, who want AI visibility measured in the same platform rather than bought separately.
Pricing & trial
Pricing not public. Pricing.
Agent Experience
How you build on this platform (or wire it into your own agents):
| Surface | Available | Docs |
|---|---|---|
| API | Yes | docs |
| MCP | No | — |
| SDK | No | — |
| CLI | No | — |
| llms.txt | No | — |
Stronger than most incumbents on agent surfaces: an MCP server wires the Accessibility Agent into Claude, Lovable, VS Code, and Figma, and agent-to-agent connectivity extends across 40+ partner integrations including Optimizely CMS, though no public API or SDK documentation is on record.
Reference customers
Barclays, Shell, Harvard University, Bang & Olufsen, BlackRock, AdventHealth, GSK, CQUniversity Australia, Posten Bring A/S, University of Ottawa, Danske Bank, Merkle.
Case studies & customer stories
- Danske Bank, Shell, and Merkle on European Accessibility Act readiness across 538 websites and 2.3M+ pages source
- Shell, Merkle, and Danske Bank as early movers ahead of the June 2025 EAA deadline source
- Merkle builds its first accessibility practice on Siteimprove Inclusivity source
- 2026 Global Accessibility Customer Award winners, ten named enterprise programs source
Recent moves
- 2026-08-18The Siteimprove Federal Platform reached FedRAMP Ready at Moderate impact and listed on the FedRAMP Marketplace, aimed at Section 508 and ADA Title II obligations. source
- 2026-07-29July release notes added language detection, bulk remediation, and status filtering to the PDF Remediation Agent, plus an Accessibility Checker plugin for Figma. source
- 2026-06-30Launched the Siteimprove.ai MCP Server, putting the Accessibility Agent inside Claude, Lovable, VS Code, and Figma so pages get audited during creation rather than after publication. source
- 2026-06-09Shipped a Content Writing and Optimization Agent that builds AEO performance insights into generated content, alongside a PDF Remediation Agent for automated accessibility fixes at scale. source
- 2026-05-21Named ten 2026 Global Accessibility Customer Award winners, including Barclays, Shell, Harvard University, BlackRock, and GSK. source
- 2026-04-20Launched Advanced AEO Insights at Adobe Summit, tracking AI citations, share of answers, brand sentiment, competitive position, and revenue attribution across answer engines. source
Company, Financials & Funding History
Founded in 2003 in Copenhagen by Morten Ebbesen, with Troels Rasmussen and Peter Jensen. Ebbesen ran it as CEO for roughly 18 years, expanding into the UK, US, Sweden, and continental Europe before moving to the board in 2021. Nayaki Nayyar, formerly of Securonix, took over as CEO in March 2025 and has led the agentic rebuild since.
| Date | Round | Amount |
|---|---|---|
| 2020 | Majority recapitalization | Undisclosed (Nordic Capital), majority ownership, still the controlling owner |
| 2015-12 | Minority growth investment | $55M (Summit Partners), first outside capital after 12 years of founder ownership |
Analyst placement
Representative Vendor in the 2026 Gartner Market Guide for Answer Engine Optimization, following a Representative Vendor placement in the 2025 Gartner Market Guide for Enterprise SEO Platforms. Named a Strong Performer in The Forrester Wave: Digital Accessibility Platforms, Q4 2023.