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  • Optimizely (formerly Episerver)

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    About

    Optimizely supplies software for content management, content marketing, experimentation, commerce, personalisation and analytics. Its platform brings marketing and product teams together to create and test digital experiences across channels.

    Read more

    The business previously operated under the Episerver name. Episerver acquired Optimizely in 2020 and announced its own rebrand to Optimizely on 27 January 2021. The company’s current website describes these services as a single marketing platform and links to product plans, developer documentation and customer support.

    Product design - Designer

    Facts

    • Ownership
      Private
    • Delivery and access
      Hosted softwareBrowser interfaceAPI
    • Software type
      SaaS
    • Categories
      • Marketing automation
      • Email sending platforms (ESP)
    • Supported languages
      English
    • Certification and memberships
      • CSA
      • M3AAWG

    Explore by capability

    • Workflow automation

    Related

    Products1

    SoftwareOptimizely Campaign

    Optimizely Campaign is an omnichannel marketing application within the Optimizely platform. It supports email creation, audience targeting, one-off campaigns, automated journeys and…

    View profile →

    Memberships2

    Verified from cited rosters or confirmed directly by the membership organisation.

    OrganisationsM3AAWGSupporter

    M3AAWG is a global industry association working on internet abuse. Its members include communications providers, hosting companies, security vendors, email service providers…

    View profile →

    Membership checked 4 October 2026. Official roster

    OrganisationsCertified Senders Alliance (CSA)Certified ESP

    The Certified Senders Alliance is a service operated by eco, the Association of the Internet Industry, in cooperation with the German Dialogue…

    View profile →

    Roster entry: Optimizely GmbH. Checked 4 October 2026. Official roster

    Contact and locations

    Office

    Regeringsgatan 67
    Stockholm
    Sweden
    Get directions
    Phone
    +1 603 594 0249
    Website
    optimizely.com
    View map
    • Xepiserver ↗
    • FacebookEpiserver ↗
    • LinkedIn · Companyepiserver-ab ↗

    Company details

    • Company type
      Private
    • Legal name
      Episerver Inc
    • Year founded
      1994
    • Employees
      1,001–5,000

    Ownership and investment

    History and disclosed funding

    Deals, funding and ownership disclosures, as reported at the time.

    1. 2024-09-30

      NetSpring acquisition agreement

      Announced

      Optimizely announced an agreement to acquire NetSpring. The announcement describes an agreed transaction, not a completed acquisition.

      Optimizely (formerly Episerver)

      Company announcement ↗ (opens in a new tab)
    2. 2021-12-01

      Welcome acquisition agreement

      Announced

      Optimizely announced a definitive agreement to acquire Welcome. The announcement anticipated completion in the fourth quarter of 2021, subject to closing conditions.

      Optimizely (formerly Episerver)

      Company announcement ↗ (opens in a new tab)
    3. 2021-03-22

      Optimizely acquires Zaius

      Completed

      Optimizely announced that it had acquired customer data platform Zaius.

      Zaius (customer data platform)

      Company announcement ↗ (opens in a new tab)
    View 3 earlier disclosures
    1. 2021-01-27

      Episerver adopts Optimizely name

      Rebranded

      Episerver announced that it had rebranded as Optimizely following its acquisition of the business in 2020.

      Optimizely (formerly Episerver)

      Company announcement ↗ (opens in a new tab)
    2. 2020-10-21

      Episerver completes Optimizely acquisition

      Completed

      Episerver announced completion of its Optimizely acquisition. Optimizely’s experimentation platform remained available as a standalone offering.

      Optimizely (formerly Episerver)

      Company announcement ↗ (opens in a new tab)
    3. 2018-09-06

      Insight agrees Episerver acquisition

      Announced

      US$1.16 billion valuation

      Episerver announced an agreement to be acquired by Insight Venture Partners in a transaction valuing the company at US$1.16 billion. Completion was still subject to conditions.

      Optimizely (formerly Episerver)

      Company announcement ↗ (opens in a new tab)
    • Report

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