Company lists · Data refreshed September 2026

Top 25 Athlete endorsement firms based in the United States

Name: Athlete endorsement firms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 721 companies tracked

RevenueBase identified 721 athlete endorsement firms headquartered in the United States as of September 2026 and tracks 8,757 professional contacts across them, including 2,175 with verified work emails. New York is the largest hub.

This list covers athlete endorsement firms headquartered in the United States, 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.

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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 19, 2026 86% judged on-target in blind review

721Companies

8,757Contacts tracked

2,175Verified emails

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The 25 largest athlete endorsement firms based in the United States

Ranked by team size

Top 25 of 721 athlete endorsement firms based in the United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to athlete endorsement firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	MKTG	Indirect evidence	New York, NY, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,502 contacts →
	Indirect evidence “For over 20 years MKTG S+E has led some of the most transformative sponsorships in sports & entertainment.” Source: RevenueBase Database · checked Sep 19, 2026
2	Octagon	Indirect evidence	Stamford, CT, United StatesHQ checked Sep 19, 2026	501-1,000	1,305 contacts →
	Indirect evidence “We are Octagon.” Source: RevenueBase Database · checked Sep 19, 2026
3	CSE	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 19, 2026	51-200	372 contacts →
	Partial evidence “Founded in 1986 as an athlete management and marketing firm, CSE (formerly Career Sports & Entertainment) has evolved into one of the longest-running and most-diversified…” Source: RevenueBase Database · checked Sep 19, 2026
4	Revolution	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	201-500	273 contacts →
	Indirect evidence “rEvolution is an independent, global and fully integrated sports marketing agency comprised of industry experts in consulting and business strategy alongside marketing and…” Source: RevenueBase Database · checked Sep 19, 2026
5	Klutch Sports Group, LLC	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 19, 2026	11-50	150 contacts →
	Indirect evidence “Klutch Sports Group” Source: RevenueBase Database · checked Sep 19, 2026
6	Athletes First	Partial evidence	Laguna Hills, CA, United StatesHQ checked Sep 19, 2026	51-200	144 contacts →
	Partial evidence “Athletes First is the premier sports representation and marketing agency, guiding the careers of elite athletes, coaches, executives, and broadcasters.” Source: RevenueBase Database · checked Sep 19, 2026
7	Premier Athlete Agency	Partial evidence	San Diego, CA, United StatesHQ checked Sep 19, 2026	11-50	115 contacts →
	Partial evidence “Premier is a full-service sports agency representing elite professional athletes.” Source: RevenueBase Database · checked Sep 19, 2026
8	Vaynersports	Indirect evidence	New York, NY, United StatesHQ checked Sep 19, 2026	11-50	95 contacts →
	Indirect evidence “VaynerSports is a full-service talent representation and sports marketing consulting agency with offices in New York, Los Angeles and Dallas.” Source: RevenueBase Database · checked Sep 19, 2026
9	Sports 1 Marketing	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 19, 2026	11-50	95 contacts →
	Indirect evidence “Founded by Hall of Fame Quarterback Warren Moon, Michael Scott Carter and David Meltzer; Sports 1 Marketing is a global sports and entertainment marketing agency that leverages…” Source: RevenueBase Database · checked Sep 19, 2026
10	Oneteam Partners	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 19, 2026	51-200	86 contacts →
	Partial evidence “OneTeam Partners aligns with world-class Players Associations and helps athletes maximize their name, image and likeness rights by focusing on four key areas: group licensing…” Source: RevenueBase Database · checked Sep 19, 2026
11	GSE Worldwide	Indirect evidence	New York, NY, United StatesHQ checked Sep 19, 2026	51-200	79 contacts →
	Indirect evidence “Formed in January 2019 following Gatemore Capital Management’s acquisition of TLA Worldwide’s US business, GSE Worldwide is an industry-leading, fully integrated sports and…” Source: RevenueBase Database · checked Sep 19, 2026
12	Allied Sports	Indirect evidence	New York, NY, United StatesHQ checked Sep 19, 2026	51-200	75 contacts →
	Indirect evidence “Allied Sports launched in 2019 with a singular mission – to lead modern marketers in the undeniable shift from Sponsor to Storyteller™.” Source: RevenueBase Database · checked Sep 19, 2026
13	Opendorse	Partial evidence	Lincoln, NE, United StatesHQ checked Sep 19, 2026	51-200	73 contacts →
	Partial evidence “Opendorse is the leading athlete marketplace and NIL technology company.” Source: RevenueBase Database · checked Sep 19, 2026
14	Procamps	Indirect evidence	Cincinnati, OH, United StatesHQ checked Sep 19, 2026	11-50	69 contacts →
	Indirect evidence “Founded in ProCamps is a best-in-class event management and sports marketing company specializing in developing, managing, and operating camps, appearances, brand activations, and…” Source: RevenueBase Database · checked Sep 19, 2026
15	Range Sports	Indirect evidence	Santa Monica, CA, United StatesHQ checked Sep 19, 2026	51-200	42 contacts →
	Indirect evidence “Range Sports is a representation, marketing and production company built for the modern era.” Source: RevenueBase Database · checked Sep 19, 2026
16	Medium Rare	Partial evidence	New York, NY, United StatesHQ checked Sep 19, 2026	n/a	42 contacts →
	Partial evidence “Uniquely positioned at the intersection of Sports & Entertainment, Medium Rare partners with athletes, celebrities, and brands to build iconic entertainment properties.” Source: RevenueBase Database · checked Sep 19, 2026
17	Steiner Sports	Indirect evidence	New Rochelle, NY, United StatesHQ checked Sep 19, 2026	51-200	39 contacts →
	Indirect evidence “Steiner Sports specializes in helping companies use the power of sports to grow their business.” Source: RevenueBase Database · checked Sep 19, 2026
18	Athletes To Careers	Partial evidence	San Clemente, CA, United StatesHQ checked Sep 19, 2026	11-50	36 contacts →
	Partial evidence “Athletes to Careers partners with world class companies passionate about finding the "Best and Most Diverse" talent, and believe that student athletes fit that mold perfectly.” Source: RevenueBase Database · checked Sep 19, 2026
19	Avanza Sports	Indirect evidence	Wilmington, DE, United StatesHQ checked Sep 19, 2026	11-50	35 contacts →
	Indirect evidence “Avanza Sports is a multi-faceted sports enterprise providing a more comprehensive array of opportunities than a typical sports agency.” Source: RevenueBase Database · checked Sep 19, 2026
20	Alliance Sport Marketing	Indirect evidence	Nashville, TN, United StatesHQ checked Sep 19, 2026	11-50	35 contacts →
	Indirect evidence “Alliance Sport Marketing is an agency specializing in multi-team/venue sponsorships, on-site event planning, activation, and consulting.” Source: RevenueBase Database · checked Sep 19, 2026
21	Leverage Agency	Indirect evidence	New York, NY, United StatesHQ checked Sep 19, 2026	11-50	32 contacts →
	Indirect evidence “A Global Sports and Entertainment Partnership Marketing and Management Agency.” Source: RevenueBase Database · checked Sep 19, 2026
22	3 Strand Sports And Entertainment	Partial evidence	Nashville, NY, United StatesHQ checked Sep 19, 2026	11-50	31 contacts →
	Partial evidence “3 Strand Sports and Entertainment is a full-service athlete management firm that has been representing elite NFL players, coaches, and executives since its inception.” Source: RevenueBase Database · checked Sep 19, 2026
23	Bespoke Sports & Entertainment	Indirect evidence	Charlotte, NC, United StatesHQ checked Sep 19, 2026	11-50	30 contacts →
	Indirect evidence “Bespoke is a sports and entertainment consulting and experiential marketing agency that assists brands in selecting the right partnerships and maximizing their sponsorship…” Source: RevenueBase Database · checked Sep 19, 2026
24	ESM	Indirect evidence	Greenville, SC, United StatesHQ checked Sep 19, 2026	11-50	26 contacts →
	Indirect evidence “ESM is the premier sports marketing agency in the country.” Source: RevenueBase Database · checked Sep 19, 2026
25	Vanguard Sports Group	Indirect evidence	Chapel Hill, NC, United StatesHQ checked Sep 19, 2026	11-50	26 contacts →
	Indirect evidence “Vanguard Sports Group, founded in 2014 by veteran agent and former NFL player Joby Branion, is built upon the belief that our team has special obligations towards our clients.” Source: RevenueBase Database · checked Sep 19, 2026

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: athlete endorsement firms. 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 athlete endorsement firms.
Partial evidence: Its own public description names part of athlete endorsement firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name athlete endorsement firms. 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 721 athlete endorsement firms based in the United States

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Athlete endorsement firms based in the United States at a glance

As of Sep 19, 2026

24.8%Verified-email coverage

12.1Average contacts per company

1-10Median size (employees)

8.3%Largest-city concentration · New York

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

554

11-50

139

51-200

201-500

501-1,000

1,001-5,000

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 721 companies.

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 athlete endorsement firms, 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.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “athlete endorsement firms”. 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 athlete endorsement firms), 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 athlete endorsement firms, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
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, 2,175 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.

Athlete endorsement firms by metro

Athlete endorsement firms in New York60
Athlete endorsement firms in Los Angeles46
Athlete endorsement firms in Miami33
Athlete endorsement firms in Atlanta30

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 athlete endorsement firms, 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 athlete endorsement firms are there based in the United States?

RevenueBase identified 721 athlete endorsement firms headquartered in the United States 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?

MKTG, headquartered in New York, tops this list with the largest team on record.

Which city has the most athlete endorsement firms?

New York leads with 60 headquartered companies, followed by Los Angeles (46) and Miami (33).

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 2,175 verified decision-maker contacts tracked across these 721 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.

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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 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.