Company lists · Data refreshed November 2026

Top 25 Marketplace conversion optimization companies based in the United States

Name: Marketplace conversion optimization companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 1,056 companies tracked

RevenueBase identified 1,056 company matches for marketplace conversion optimization companies associated with the United States as of November 2026 and tracks 19,357 professional contacts across them, including 6,994 with verified work emails. New York is the largest hub.

This list covers company matches for marketplace conversion optimization companies associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built

1,056Companies

19,357Contacts tracked

6,994Verified emails

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The 25 largest marketplace conversion optimization companies based in the United States

Ranked by team size

Top 25 of 1,056 company matches for marketplace conversion optimization companies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Kinesso	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	5,001-10,000	2,407 contacts →
	Exact match “KINESSO is the technology-driven performance marketing agency within Omnicom Media that provides actionable growth for both agency partners and clients.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	CJ	Exact match	Santa Barbara, CA, United StatesHQ recorded Nov 6, 2026	501-1,000	1,278 contacts →
	Exact match “From pioneering affiliate marketing to powering the future of connected commerce, CJ has been the trusted leader in partnership-based growth since 1998.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Centerfield	Exact match	Los Angeles, CA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,168 contacts →
	Exact match “Super-powered customer acquisition.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Quinstreet	Exact match	Foster City, CA, United StatesHQ recorded Nov 6, 2026	501-1,000	1,109 contacts →
	Exact match “Powering Performance Marketplaces In Digital Media QuinStreet is a pioneer in powering decentralized online marketplaces that match searchers and “research and compare” consumers…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	MY Amazon GUY	Exact match	Atlanta, GA, United StatesHQ recorded Nov 6, 2026	501-1,000	1,043 contacts →
	Exact match “1.2-billion managed on Amazon, My Amazon Guy is A 400+ client full service Amazon Agency in Atlanta, Georgia.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Constructor	Exact match	San Francisco, CA, United StatesHQ recorded Nov 6, 2026	201-500	840 contacts →
	Exact match “Constructor is the only search and discovery platform designed exclusively for commerce where conversions matter.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Quartile	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	201-500	514 contacts →
	Exact match “Quartile, the world's largest retail media optimization platform, is a trusted partner for multichannel e-commerce success.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Acadia	Exact match	Atlanta, GA, United StatesHQ recorded Nov 6, 2026	201-500	375 contacts →
	Exact match “We are a trusted growth marketing agency that brings together scarce skills in the area of CRO (conversion rate optimization), Paid Media (Search, Performance, Video, Audio…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	ISG	Exact match	Boca Raton, FL, United StatesHQ recorded Nov 6, 2026	501-1,000	234 contacts →
	Exact match “ISG is a dynamic, performance-propelled marketing partner to some of the world’s biggest brands, obsessed with performance and maximizing ROI.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Connexity, INC	Exact match	Santa Monica, CA, United StatesHQ recorded Nov 6, 2026	201-500	227 contacts →
	Exact match “Connexity, a Taboola company is a performance-marketing technology company whose core purpose is to help online retailers find new customers and drive sales at a cost that meets…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Spiralyze	Exact match	Atlanta, GA, United StatesHQ recorded Nov 6, 2026	201-500	205 contacts →
	Exact match “30% conversion lift on your website in 90 days through predictive CRO- Prediction engine scrapes websites to find winning A/B tests from other companies- Full-service team does…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Elocal	Exact match	Conshohocken, PA, United StatesHQ recorded Nov 6, 2026	51-200	204 contacts →
	Exact match “eLocal, part of HomeServe Plc, global leader in the home services industry, is a fast-growing and highly profitable national leader in pay-for-performance digital advertising.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Innoppl INC	Exact match	Atlanta, GA, United StatesHQ recorded Nov 6, 2026	51-200	162 contacts →
	Exact match “Innoppl Inc commonly known as "Innovative People", Innoppl, Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	What IF Media Group	Exact match	Fort Lee, NJ, United StatesHQ recorded Nov 6, 2026	51-200	157 contacts →
	Exact match “What If Media Group is an award-winning performance marketing company that enables the world’s leading brands to acquire valuable new customers at scale.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Ejam INC	Exact match	Newport Beach, CA, United StatesHQ recorded Nov 6, 2026	11-50	106 contacts →
	Exact match “Ejam is a performance-based online advertising and marketing leader.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Several Brands	Exact match	Wilmington, DE, United StatesHQ recorded Nov 6, 2026	51-200	106 contacts →
	Exact match “Several Brands LLC is a holding company that owns and manages various brands.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Shogun	Exact match	We're A Remote Company, United StatesHQ recorded Nov 6, 2026	51-200	104 contacts →
	Exact match “Grow your business with a comprehensive suite of optimization, personalization, visual merchandising and SEO tools built for ecommerce.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Klientboost	Exact match	Costa Mesa, CA, United StatesHQ recorded Nov 6, 2026	51-200	98 contacts →
	Exact match “1st & only marketing agency to ever win Glassdoor's #1 Best Place To Work Award (2022) KlientBoost is the performance marketing agency with the most published wins (case studies…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Paper Street Media	Exact match	Miami, FL, United StatesHQ recorded Nov 6, 2026	11-50	96 contacts →
	Exact match “With more than a decade of experience Paper Street Media can help you leverage manpower and increase your capacity for marketing and web design projects.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Hawksem	Exact match	Los Angeles, CA, United StatesHQ recorded Nov 6, 2026	51-200	91 contacts →
	Exact match “HawkSEM is a results-driven digital marketing agency with roots in paid search that date back more than a decade.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Fermàt	Exact match	San Francisco, CA, United StatesHQ recorded Nov 6, 2026	51-200	91 contacts →
	Exact match “Tailor Every Touchpoint.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Instapage	Exact match	San Francisco, CA, United StatesHQ recorded Nov 6, 2026	201-500	91 contacts →
	Exact match “Instapage is a complete growth marketing platform with the #1-rated builder for PPC, SEO, demand generation, A/B testing, personalization, and email automation.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Efficient Frontier	Exact match	Sunnyvale, CA, United StatesHQ recorded Nov 6, 2026	201-500	90 contacts →
	Exact match “Maximum advertising performance and returns.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Jumpfly, INC	Exact match	Hoffman Estates, IL, United StatesHQ recorded Nov 6, 2026	51-200	83 contacts →
	Exact match “Since 2003, JumpFly has been a Smart Digital Advertising leader.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Convertros	Exact match	Atlanta, GA, United StatesHQ recorded Nov 6, 2026	51-200	79 contacts →
	Exact match “Convertros is the conversion engine for enterprise home services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “marketplace conversion optimization companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 1,056 marketplace conversion optimization companies based in the United States

See the full list, filter by size, metro and specialty, and access 6,994 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Marketplace conversion optimization companies based in the United States at a glance

As of Nov 6, 2026

36.1%Verified-email coverage

18.3Average contacts per company

1-10Median size (employees)

7.9%Largest-city concentration · New York

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

622

11-50

346

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 1,056 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with the United States whose business descriptions match “marketplace conversion optimization companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 6,994 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Marketplace conversion optimization companies by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “marketplace conversion optimization companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many marketplace conversion optimization companies are there based in the United States?

RevenueBase identified 1,056 company matches for marketplace conversion optimization companies associated with the United States as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Kinesso tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most marketplace conversion optimization companies?

New York leads with 83 company records, followed by Los Angeles (47) and Miami (35).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 6,994 professional contacts with verified work emails tracked across these 1,056 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 2026.

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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 SmartSearch, 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.