Semrush Holdings, Inc. is a Boston-based SaaS company that provides an all-in-one platform for SEO, content marketing, competitive intelligence, social media, local search, and paid advertising. Its flagship product, Semrush One, unifies traditional SEO analytics with AI search and GEO (Generative Engine Optimization) visibility so brands can understand how they appear both in classic search results and in AI-generated answers.
Founded in 2008 by Oleg Shchegolev and Dmitri Melnikov as a small SEO toolkit, Semrush has grown into a comprehensive online visibility suite used by over 10 million marketing professionals worldwide. The platform now spans more than 55 tools and toolkits and is powered by one of the largest marketing datasets in the industry, including tens of billions of keywords, trillions of backlinks, hundreds of millions of domain profiles, and over a hundred geo databases.
Semrush serves a wide range of customers—from solo creators and small businesses to global enterprises and agencies. Core capabilities include keyword research, domain and traffic analytics, rank tracking, site audits, content ideation and optimization, backlink analytics and link-building workflows, local listings management, social media publishing and analytics, and AI PR for monitoring brand presence across media sources. Agencies benefit from robust reporting, client management tools, and an App Center of add-ons and integrations.
The company went public on the New York Stock Exchange in 2021 under the ticker SEMR and continues to invest heavily in AI-driven features such as its AI Visibility toolkit. In November 2025, Adobe announced an agreement to acquire Semrush in an all-cash deal valued at approximately $1.9 billion, with closing expected in the first half of 2026, positioning Semrush as a key pillar in Adobe’s digital experience and marketing ecosystem.