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SimilarWeb
Provides web services for Internet users to search related content on the web
At a glance
- Founded
- 2007
- Headquarters
- New York City, United States
- Listing
- IPO 2021
- Sector
- Marketing
- Power Law
- Unicorn$1–10B valuation tierThoroughbred$100M+ revenue
Research & analysis
Analysis
Founder ambition per country: a proxy
Sep 4, 2026
Analysis
Share of unicorns that are not global, against the size of their home market
Sep 4, 2026
News
Liner raises $50B Series C to expand its AI search agents
Aug 25, 2026
Market map
Market Intelligence Landscape
Jul 7, 2026
News
Aligned raises $60M to tame the chaos of B2B sales
Jul 1, 2026
Latest news
Press, funding announcements and product moves mentioning SimilarWeb.
Investors
From Dealroom's funding and investor records, grouped by the round each investor first entered.
Seed1 investor entered at this stage
- YVyossi vardi
Series A3 investors entered at this stage
- LRLiron Rose
- OKOmer Kaplan
- DMDocor International Management
Series B and later8 investors entered at this stage
- C(CE Ventures (CEIIF)
Viola Ventures- LALord David Alliance
Vintage Investment Partners- SGSaban Capital Group
- IPION Crossover Partners
- VGViola Growth
Prosus
Source: Dealroom Talent Intelligence.
Alumni founders
Former SimilarWeb employees who went on to found companies, sorted by Dealroom signal score.
IRironSourceEst. 2010
Omer KaplanIsrael
Nir CohenIsrael
ALAliceEst. 2018
Iftach OrrIsrael
Elool JacobyIsrael
Maya CohenUnited StatesGlobal footprint
team presence
across markets
Patents
2 active patent families included in this estimate.
A patent family groups patent filings for the same invention. Source: Dealroom · PatSnap.
Investments and acquisitions
Disclosed deals where SimilarWeb was the backer or acquirer, 2015–2026. Toggle between venture rounds, M&A, or both. The map below is grouped by the target company's sector — the colored pill on each chip is the round type.
8 deals across SimilarWeb's capital deployment.
Where the deals concentrate by sector, stage, and decade.
Where SimilarWeb deploys vs peers
Each axis is a Dealroom topic tag — picked from the cluster's most-tagged themes. Values are normalized per axis: the peer with the highest tag-coverage on that axis sits at the edge, others scale relative to them. Toggle between M&A, venture, or both.
SimilarWeb's portfolio, mapped.
Each chip is one company. Pill colour shows round type — green for Seed, blue for Series A, purple for B/C+, pink for late-stage, amber for M&A. Bigger sectors keep their full list behind “+ N more”.
Market sentiment
An AI-synthesised read of the highest-engagement posts about SimilarWeb on X, ranked by likes and reposts, corporate channels excluded.
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 SimilarWeb on the full Dealroom platform
Live deal flow, founder pedigree, hiring signals, revenue trajectory, and the full cap table.