Publicly traded (SMWB)
Website: https://www.similarweb.com/
Similarweb Ltd. (NYSE: SMWB) is a publicly traded digital data and analytics company founded in 2007 in Tel Aviv, Israel. The company provides a multi-product platform for web and mobile app intelligence, competitive benchmarking, market research, sales intelligence, and shopper analytics, serving businesses ranging from SMBs to Fortune 500 enterprises. It operates primarily in the digital intelligence, competitive intelligence, and marketing analytics categories.
Similarweb develops tools for analyzing traffic and behavioral data across websites and mobile apps. [4] Its service provides datasets and a platform marketed for individuals, teams, or companies requiring data for marketing, sales, and market research. [4] The company's data is collected from multiple sources, including information partners and anonymous data from users of dedicated browser add-ons. [4] Its platform ranks websites and apps based on traffic and engagement metrics across 210 categories and 190 countries. [4] Core product lines include Web Intelligence, App Intelligence (formerly 42matters), Sales Intelligence, Shopper Intelligence, Research Intelligence, and Investor Intelligence. [21] As of 2025, Similarweb had expanded into AI-driven data use cases, including selling digital data for LLM training and powering AI agents through its Similarweb AI Studio product. [35] The company is publicly traded on the New York Stock Exchange under the ticker symbol SMWB. [9]
Similarweb was founded in 2007 by Or Offer in Tel Aviv, Israel, originally as a browser plugin designed to analyze browsing history and recommend similar websites. [4] By 2009 the company won the first Israeli SeedCamp and received seed funding led by angel investor Yossi Vardi. [4, 7] A Series A followed in 2011. [5] In February 2014, Naspers led a Series C round of $18 million. [4] The company acquired Israeli early-stage app analytics firm TapDog in 2014, content discovery platform Swayy and mobile analytics provider Quettra in 2015. [4] Subsequent acquisitions include mobile insights provider Embee Mobile (2021), SEO rank tracking firm RankRanger (2022), ad intelligence company Admetricks and app intelligence provider 42matters (both 2024), and paid search and affiliate solution The Search Monitor (2025). [4] Total pre-IPO funding raised was approximately $240 million across nine rounds from investors including Naspers, Viola Group, and ION Crossover Partners. [2] In October 2020, Similarweb raised $120 million in a round co-led by ION Crossover Partners and Viola Growth. [11] Similarweb completed its IPO on the New York Stock Exchange on May 12, 2021, raising $165 million at a valuation of $1.6 billion and pricing shares at $22. [15]
Similarweb operates at the intersection of competitive intelligence, marketing analytics, and digital data licensing. [28] G2 has named Similarweb a market leader in Enterprise Competitive Intelligence Tools, Market Intelligence Tools, Enterprise SEO Tools, Content Analytics Software, Paid Search Intelligence Software, and Digital Advertising Intelligence Software. [26] The company reported total revenue of $282.6 million for fiscal year 2025, representing 13% year-over-year growth from $249.9 million in fiscal year 2024. [31] Revenue guidance for fiscal year 2026 is $305–315 million, representing approximately 10% growth at the midpoint. [31] As of December 31, 2025, customers with ARR of $100,000 or more numbered 454, up 12% year-over-year, contributing 63% of total ARR; 60% of overall ARR was contracted under multi-year subscriptions. [35] The company reported nine consecutive quarters of positive free cash flow through Q4 2025. [31] Documented customers cited on company materials include LEGO, DHL, Rakuten, MandM Direct, and GroupM. [13, 26] Similarweb's data has also been made available through the Bloomberg Terminal's alternative data platform. [35]
Similarweb's primary competitive set spans several adjacent categories. In web analytics and SEO, its most direct competitors are Semrush and Ahrefs; in a Semrush comparison, Similarweb is generally positioned more toward outside-in market intelligence while Semrush is stronger in SEO execution and keyword tooling depth. [24] Semrush is the closest publicly traded direct competitor. [27] In mobile and app intelligence, Sensor Tower and data.ai (formerly App Annie) are the primary competitors; Similarweb has sought to close this gap through acquisitions including 42matters. [27] Legacy measurement firms Nielsen and Comscore compete in traditional audience measurement and ad currency, but are considered less nimble for digital-first use cases. [27] Adobe Analytics and Contentsquare operate in adjacent enterprise analytics with a first-party data and customer journey focus. [24] Google Analytics has a substantially larger installed base by virtue of its free tier but does not provide the outside-in competitor benchmarking view that is Similarweb's primary differentiator. [24] In specialized backlink and SEO analytics, Moz and Majestic also overlap with portions of Similarweb's offering. [25]