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Optimizely among Y Combinator companies

Optimizely was detected on 19 of 5,386 crawled Y Combinator company websites, a share of 0.4%.

5,386 of 6,133 Y Combinator domains returned a usable record and form the denominator. 5,242 were counted from a rendered homepage crawl on 4 September 2026, 144 from a plain fetch only, and 747 returned no usable record. Company list: Y Combinator company directory. <5 means fewer than 5 crawled domains in that group. Rank 4 of the 5 A/B Testing and Personalization tools published for this group.

Software used by Y Combinator companies · A/B Testing and Personalization across all groups · Optimizely across every group and the wider sample

Optimizely runs on these Y Combinator companies

• Fivetran
• Ironclad
• Zapier
• Chariot
• Zenefits
• SmartAsset
• Fivestars
• Humi
• Bluecrew
• Bloom Institute of Technology
• MineralSoft
• Lawyaw
• Mattermark
• Foxpass
• Listia
• Embedly
• Screenhero
• Yardbook

18 of 19, ordered by team size, largest first.

<a href="https://installmap.com/groups/yc/optimizely"><img src="https://installmap.com/badges/yc/optimizely.svg" alt="Optimizely runs on 19 of 5,386 crawled YC companies (0.4%)"></a>

[![Optimizely runs on 19 of 5,386 crawled YC companies (0.4%)](https://installmap.com/badges/yc/optimizely.svg)](https://installmap.com/groups/yc/optimizely)

Other A/B Testing and Personalization tools in this group

• VWO 1.4%
• Webflow Optimize (Intellimize) 1.2%
• Google Optimize 0.4%
• Convert Experiences 0.2%
• Optibase 0.2%
• Mida 0.2%
• Mutiny 0.2%
• Intelligems 0.1%