Headquarters
New York, NYFounded
2010CEO / Founder
Alex AtzbergerEmployees
1001-5000Funding
AcquiredProducts
1 product listedAvg. AI Score
7.7/10Website
www.optimizely.com/Profile updated
Optimizely is a digital experience platform founded in 2010 in San Francisco by Dan Siroker and Pete Koomen. The DXP combines web experimentation, CMS, commerce, personalization, and marketing orchestration (following acquisitions of Episerver/Welcome).
Optimizely serves more than 9,000 brands including Microsoft, Yamaha, and Sky. The company emphasizes AI-driven experimentation and content.
Insight Partners acquired Episerver/Optimizely in 2020 and now owns the combined company. Alex Atzberger serves as CEO. Headquarters moved to New York City.
Dated, source-cited figures. Estimates are marked.
All products by Optimizely reviewed by our AI panel of experts.
Six independent reviewer personalities assessed Optimizely's product on their own terms. They disagreed by 1.1 points — The Finance Lead was the hardest to convince, The Domain Strategist the most positive.
Averaged across 1 reviewed product in our catalog. Scores are out of 10.
Who Optimizely competes with, and how they differ.
Adobe Target is Optimizely's closest enterprise rival, bundled inside the broader Adobe Experience Cloud with deep ties to Adobe Analytics; Optimizely competes as a standalone platform that integrates across any marketing stack rather than locking customers into one ecosystem.
3 products reviewed on TopReviewedVWO is more beginner-friendly with a lower learning curve and accessible pricing, bundling A/B testing, heatmaps and session recordings; it lacks Optimizely's enterprise-scale server-side experimentation and CMS integration.
Sitecore is a broader DXP/CMS suite with its own Sitecore Personalize module aimed at large IT-managed marketing teams; Optimizely is more experimentation-first, with CMS as one part of a wider optimization platform rather than the other way around.
AB Tasty is a mid-market-focused A/B testing and personalization tool priced below Optimizely's enterprise tiers; it offers less depth in server-side/feature-flag experimentation and generative-AI test ideation than Optimizely's Opal.
Dynamic Yield focuses on retail/ecommerce personalization and product recommendations at scale; Optimizely covers a broader cross-industry experimentation and CMS use case rather than specializing in retail merchandising.
1 product reviewed on TopReviewedKey milestones in Optimizely's history, with sources.
Combined company rebrands as Optimizely
Episerver renamed the combined post-merger company Optimizely, retiring the Episerver brand while keeping its CMS and Commerce Cloud products; the firm served 9,000+ brands with 1,100+ employees at the time.
prnewswire.comEpiserver completes acquisition of Optimizely
Episerver closed its acquisition of experimentation platform Optimizely for an undisclosed amount, creating a combined digital experience platform serving roughly 9,000 brands.
prnewswire.comEpiserver announces agreement to acquire Optimizely
Episerver, then an Insight Partners portfolio company, announced a definitive agreement to acquire Optimizely, which had raised more than $200M and laid off 15% of staff earlier in 2020 due to COVID-19.
techcrunch.comEpiserver acquired by Insight Partners for $1.16B
Insight Venture Partners acquired Episerver from Accel-KKR in a transaction valuing the content-management company at $1.16 billion.
optimizely.comEPiServer sold to Accel-KKR
IK Investment Partners sold EPiServer to private-equity firm Accel-KKR, at an enterprise value understood to be around SEK 1.25-1.5 billion.
unquote.comOptimizely founded by Dan Siroker and Pete Koomen
Dan Siroker and Pete Koomen founded Optimizely, which became synonymous with A/B testing before building a broader experimentation and personalization suite.
techcrunch.comEpiserver founded in Stockholm
Mikael Runhem founded Episerver in Stockholm, Sweden, in 1994; the company launched the first version of its EPiServer CMS platform in 1997.
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