Company lists · Data refreshed September 2026
Top 25 Checkout optimization consultants worldwide
RevenueBase identified 857 checkout optimization consultants worldwide as of September 2026 and tracks 4,749 professional contacts across them, including 1,515 with verified work emails. The United States is the largest market and London the largest hub.
This list covers checkout optimization consultants worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 19, 2026. Country and city lists for checkout optimization consultants follow the table.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest checkout optimization consultants worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 250 contacts → | ||||
Indirect evidence “Fondée en 1988, DECADE se positionne dans l’accompagnement des entreprises et enseignes de commerce « traditionnel » qui se lancent ou évoluent dans l’aventure de l’e-commerce, et…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 166 contacts → | ||||
Indirect evidence “We’re here to make ecommerce clearer.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 110 contacts → | ||||
Indirect evidence “We are a team of eCommerce experts, delivering world-leading experiences.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 104 contacts → | ||||
Partial evidence “Kustom is one of Europe’s leading checkout solutions, helping merchants grow through a high-conversion, low-complexity, and highly customizable setup.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 97 contacts → | ||||
Indirect evidence “Based in Paris, Montpellier, Lille, Nantes, Lyon & Mulhouse, Dn'D is a consulting agency specializing in the creation of digital and eCommerce experiences.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 96 contacts → | ||||
Indirect evidence “Somos a Wicomm, uma Consultoria especializada em ecommerce, oferecemos para esse mercado nossos serviços e soluções em UX/UI, Tecnologia, CRO, SEO e Mídia.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 87 contacts → | ||||
Indirect evidence “Salmon is a Wunderman Commerce company and part of the WPP group.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 73 contacts → | ||||
Indirect evidence “Yottaa is the ultimate eCommerce performance booster for brands and retailers.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 68 contacts → | ||||
Strong evidence “PDQ is the checkout optimization platform built for top DTC brands that know the real conversion battle starts after “add to cart.” Using 1,600+ behavioral and contextual signals…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 67 contacts → | ||||
Indirect evidence “eStar provides eCommerce platforms & solutions that deliver outstanding shopping experiences, helping brands grow sales & connect to more customers.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 64 contacts → | ||||
Partial evidence “shopflo aims to supercharge conversions for e-commerce websites at checkout by improving user experience, helping build stronger intent and trust during the purchase Problem…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 57 contacts → | ||||
Indirect evidence “A Ge-commerce é uma empresa de consultoria e performance para e-commerce, que transforma desafios em crescimento sustentável e resultados de negócio.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 56 contacts → | ||||
Partial evidence “We are Conversionista, the #1 CRO & Growth consultancy in the Nordics since 2010.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 54 contacts → | ||||
Strong evidence “With an estimated 15 bn € revenue in charge for optimization and over 70 consultants, Web Arts is one of the leading conversion optimization service providers worldwide.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 53 contacts → | ||||
Indirect evidence “ACCT is improving the way the world operates the e-commerce business.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 49 contacts → | ||||
Indirect evidence “A e-Digital nasceu para trazer inovação, agilidade e praticidade para quem está em busca de um Full Commerce, para melhorar sua loja online ou aumentar as vendas e obter melhores…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 49 contacts → | ||||
Indirect evidence “Siden Conversio startede op i 2012 har vi haft store ambitioner.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 40 contacts → | ||||
Partial evidence “Fastrr is a new-age AI solution to make your E-commerce checkout experience faster, safer, and secure.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 39 contacts → | ||||
Indirect evidence “247 Commerce fuels ambitious ecommerce brands.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 37 contacts → | ||||
Indirect evidence “Boost your mobile sales with Tapbuy Today, mobile represents 75% of e-commerce traffic, but only 30% of purchases.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 37 contacts → | ||||
Indirect evidence “No eCommerce desde 2010, a Comerci tem sido pioneira na transformação das empresas que optam pelo serviço de estruturação da célula de eCommerce, com treinamentos, consultoria e…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 35 contacts → | ||||
Indirect evidence “Webmetric is an SEO and UX agency based in Poznań, helping companies effectively grow their online business.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 35 contacts → | ||||
Partial evidence “Established in 2001 as a niche e-Commerce software consultancy, we work across the entire experience stack, from discovery to returns.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 34 contacts → | ||||
Partial evidence “Tweakwise is the specialist and market leader in the Benelux in the field of conversion optimization in e-commerce.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 33 contacts → | ||||
Indirect evidence “Turum-burum is a UX/UI and CRO company with 16 years of experience, primarily focused on eCommerce, SaaS, Web3, and B2B Tech projects.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: checkout optimization consultants. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names checkout optimization consultants.
- Partial evidence
- Its own public description names part of checkout optimization consultants, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name checkout optimization consultants. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 857 checkout optimization consultants worldwide
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 1,515 reachable decision-makers.
Free signup · no credit card
Checkout optimization consultants worldwide at a glance
As of Sep 19, 2026Companies by employee count
Email recency is reported on each country list linked below.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among checkout optimization consultants, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- Coverage
- Every country. Country and city lists for checkout optimization consultants are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “checkout optimization consultants”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names checkout optimization consultants), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among checkout optimization consultants, and records with no verified work email.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 1,515 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 19, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Checkout optimization consultants by location
9 lists · largest firstEvery Checkout optimization consultants list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Checkout optimization consultants based in the United States118
- Checkout optimization consultants based in the United Kingdom64
- Checkout optimization consultants based in Germany51
- Checkout optimization consultants based in Brazil43
- Checkout optimization consultants based in the Netherlands39
- Checkout optimization consultants based in India33
- Checkout optimization consultants based in Canada32
- Checkout optimization consultants based in Australia30
- Checkout optimization consultants based in France30
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names checkout optimization consultants, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many checkout optimization consultants are there worldwide?
RevenueBase identified 857 checkout optimization consultants worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Decade, headquartered in Paris, tops this list with the largest team on record.
Which country has the most checkout optimization consultants?
The United States leads with 118 companies, followed by the United Kingdom (64) and Germany (51). Every checkout optimization consultants list by country and city is linked on this page.
Which city has the most checkout optimization consultants?
London leads with 24 headquartered companies, followed by Sao Paulo (15) and Paris (14).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 1,515 verified decision-maker contacts tracked across these 857 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 19, 2026.
Ready to reach these companies? Verified emails and direct dials for all 857 checkout optimization consultants worldwide. Start with a free account, no credit card.
Download this list →Related lists
Browse the directory
Browse: Companies home · Lists by location · New lists
About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.