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Top Conversion Optimization Companies for WordPress

5 of 13 conversion optimization companies ranked on evidence in the Q4 2026 edition.

WordPress runs a very large proportion of the world's websites, which means the providers listing it range from firms that install a purchased theme to teams that build bespoke systems on it as an application framework. The gap between those two is enormous and the label does not distinguish them.

The questions that do: is this a custom theme or a licensed one, and who renews the licence? How many plugins does the build depend on, and what happens when one is abandoned? Who applies core and plugin updates after launch, and how quickly when a security release lands? Most inherited WordPress problems trace back to a site nobody was contracted to maintain.

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Between them, the 13 conversion optimization companies on this page cover eCommerce (8), SEO (8), web design (5) and financial services (4). They also list work in Toronto and Reading. 13 of them have written a profile you can read before you get in touch.

TrustList ranking

Q4 2026 edition

5 of 13 conversion optimization companies ranked on evidence held on 12 October 2026: client reviews, vetting, awards and facts each business states on its own website, which we read and date. Nobody pays to be placed.

Positions are fixed for the quarter; the next edition is due in January 2027.

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All conversion optimization companies 5 ranked SMEs 5 ranked

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Hopping Mad Designs
Web Design · Digital Marketing · eCommerce
Hopping Mad Designs is a Sydney design agency offering graphic design, web design, search engine optimisation and digital marketing.
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Why #1: Founded 1998, as stated on its own website, read 9 Oct 2026
Not yet on record: client reviews, vetting.
getButterfly
SEO · simple · Internet · Also in Reading
getButterfly is a one-person workshop that builds WordPress plugins for speed, analytics, galleries and forms.
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Why #2: Founded 2005 · One-person, as stated on its own website, read 9 Oct 2026
Not yet on record: client reviews, vetting.
KO Websites, Inc.
Web Design · Digital Marketing · SEO · Also in Washington and San Jose
KO Websites, Inc. is a web design and digital marketing company headquartered in the San Francisco Bay Area.
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Why #3: In business 20+ years, as stated on its own website, read 9 Oct 2026
Not yet on record: client reviews, vetting.
Capellic LLC
Non Profit · eCommerce · Government · Also in Ohio and Reading
Capellic LLC is a digital services company that works only with nonprofit organisations.
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Why #4: In business 15+ years, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Apexure
Web Design · Financial Services · Information Technology · Also in London
Apexure is a London-based web agency that focuses on turning website visitors into enquiries and customers.
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Why #5: Founded 2015, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Also listed, not yet ranked. We hold nothing checkable on these yet that ranks them here: no client review, vetting, award, expert review, or fact stated on their own website (and on a place ranking, where they are based). They follow in order of their TrustList Score. How TrustList ranks · Get vetted, free
AM
Aleph Media
Arts, Entertainment & Music · Financial Services · Business Services · Also in Malaysia
Aleph Media is a web design and digital marketing agency serving clients in Malaysia and abroad.
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AS
Apollo Siti Web
eCommerce · SEO · CMS
Apollo Siti Web is a web design agency led by Giandomenico Viglione, a developer with more than fourteen years of experience.
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Bluedot Marketing Inc.
Consumer Products & Services · Financial Services · Business Services · Also in Newmarket and Richmond
Bluedot Marketing Inc. is a digital marketing agency owned and run in Canada. It builds websites and online shops and then runs the marketing that drives visitors to them.
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Element 99 Web Services
Web Design · eCommerce · SEO
Website design and development company building WordPress sites, eCommerce stores and landing pages for clients worldwide
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Ice Digital Marketing Ltd
Consumer Products & Services · Digital Marketing · eCommerce
Ice Digital Marketing Ltd is a digital marketing agency in Bradford that works only on WordPress.
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Itec Media
Consumer Products & Services · Arts, Entertainment & Music · Web Design · Also in Toronto
Itec Media builds and markets websites, with an emphasis on conversion.
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JD Ecommerce
eCommerce · Rating · Also in Christchurch
JD Ecommerce is a Shopify agency based in Bournemouth, UK. It has been part of Real Agency since 1 July 2024, when the two agencies merged.
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KM
Kesec Marketing Corp
SEO · simple · Internet · Also in Canada
Canadian digital marketing agency offering website design, search and paid advertising, social media and video production
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Top Conversion Optimization Companies for WordPress

Hopping Mad Designs

getButterfly

KO Websites, Inc.

Capellic LLC

Apexure

Aleph Media

Apollo Siti Web

Bluedot Marketing Inc.

Element 99 Web Services

Ice Digital Marketing Ltd

Itec Media

JD Ecommerce

Kesec Marketing Corp

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