Company lists · Data refreshed September 2026
Top 25 Baseball leagues worldwide
RevenueBase identified 1,005 baseball leagues worldwide as of September 2026 and tracks 28,201 professional contacts across them, including 3,523 with verified work emails and 9,349 with mobile numbers. The United States is the largest market and New York the largest hub.
This list covers baseball leagues 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 7, 2026. Country and city lists for baseball leagues 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 baseball leagues worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 4,670 contacts → | ||||
Strong evidence “Major League Baseball (MLB) is the most historic professional sports league in the United States and consists of 30 member clubs in the U.S.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,494 contacts → | ||||
Strong evidence “The Chicago Cubs franchise, a charter member of Major League Baseball’s National League since 1876, has won the National League pennant 17 times and was the first team to win…” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 3 | 1,477 contacts → | ||||
Indirect evidence “Visit bluejays.com for the latest news, video, scores, stats, schedule, roster, tickets, information on Rogers Centre, fan services, to shop Jays Shop, register for Inside Pitch…” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 4 | 1,416 contacts → | ||||
Partial evidence “The New York Yankees are a professional baseball team based in the Bronx borough of New York City.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 5 | 1,315 contacts → | ||||
Indirect evidence “The three-time World Champion San Francisco Giants continue to establish itself as a global brand.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 6 | 1,204 contacts → | ||||
Strong evidence “The Philadelphia Phillies are a Major League Baseball club based in Philadelphia, Pennsylvania.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 7 | 980 contacts → | ||||
Partial evidence “As Baseball's First Professional Team, we strive for a championship caliber team on and off the field.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 8 | 903 contacts → | ||||
Strong evidence “The Baltimore Orioles are a Major League Baseball team playing based in Baltimore, Maryland in the United States.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 9 | 890 contacts → | ||||
Indirect evidence “Join us in shaping the future of the Pittsburgh Pirates!” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 10 | 846 contacts → | ||||
Partial evidence “Perfect Game is devoted to furthering the development and career of the talented amateur baseball player.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 11 | 581 contacts → | ||||
Partial evidence “The Athletics franchise is one of the most storied baseball clubs with a total of nine World Series championships.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 12 | 397 contacts → | ||||
Strong evidence “The Savannah Bananas are a collegiate summer league baseball team located in Savannah, GA.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 13 | 395 contacts → | ||||
Partial evidence “Since its inception in 2005, the Prep Baseball Report has evolved into one of the country’s biggest and most respected independent scouting services, with a singular focus of…” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 14 | 356 contacts → | ||||
Partial evidence “Since 1978 USA Baseball has been the national governing body (NGB) for the sport of baseball.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 15 | 224 contacts → | ||||
Partial evidence “AU Pro Basketball, AU Pro Volleyball and the Athletes Unlimited Softball League 🥎 Consisting of four sports spanning across a network of hundreds of athletes, we're focused on…” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 16 | 153 contacts → | ||||
Strong evidence “The Richmond Flying Squirrels Baseball Club is a minor league baseball team in Richmond, Virginia.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 17 | 147 contacts → | ||||
Strong evidence “Minor League Baseball (MiLB) consists of 120 teams across four classification levels (Single-A, High-A, Double-A and Triple-A) that are affiliated with Major League Baseball’s 30…” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 18 | 147 contacts → | ||||
Partial evidence “The Frisco RoughRiders are the Double-A affiliate of the Texas Rangers and the 2022 Texas League champions.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 19 | 110 contacts → | ||||
Strong evidence “The Charleston RiverDogs are a Minor League Baseball team based in Charleston, South Carolina.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 20 | 108 contacts → | ||||
Partial evidence “The objects of Baseball Ontario are: a) To foster and improve baseball at all levels in the Province of Ontario.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 21 | 101 contacts → | ||||
Partial evidence “Baseball America provides the baseball community coverage of all competitive levels of baseball, from a scouting and player development point of view.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 22 | 93 contacts → | ||||
Indirect evidence “ABOUT THE LONG ISLAND DUCKS Where do Long Islanders flock to every summer?” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 23 | 91 contacts → | ||||
Partial evidence “The Portland Sea Dogs are the Double-A Eastern League affiliate of the Boston Red Sox.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 24 | 91 contacts → | ||||
Strong evidence “The United Shore Professional Baseball League is a four-team development professional baseball league that provides an affordable premium experience, promotes family fun…” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 25 | 79 contacts → | ||||
Partial evidence “The Lake Erie Crushers are a professional baseball team based at ForeFront Field in Avon, Ohio, just 18 miles west of Cleveland.” Source: RevenueBase Database · checked Sep 7, 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: baseball leagues. 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 baseball leagues.
- Partial evidence
- Its own public description names part of baseball leagues, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name baseball leagues. 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 1,005 baseball leagues worldwide
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 3,523 reachable decision-makers.
Free signup · no credit card
Baseball leagues worldwide at a glance
As of Sep 7, 2026Companies by employee count
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 baseball leagues, 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
- 2 countries, largest first: the United States, Canada. Country and city lists for baseball leagues are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “baseball leagues”. 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 baseball leagues), 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 baseball leagues, 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, 3,523 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 7, 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.
Baseball leagues by location
2 lists · largest firstEvery Baseball leagues list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
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 baseball leagues, 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 baseball leagues are there worldwide?
RevenueBase identified 1,005 baseball leagues 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?
Major League Baseball MLB, headquartered in New York, tops this list with the largest team on record.
Which country has the most baseball leagues?
The United States leads with 930 companies, followed by Canada (75). Every baseball leagues list by country and city is linked on this page.
Which city has the most baseball leagues?
New York leads with 12 headquartered companies, followed by Toronto (9) and Seattle (8).
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 3,523 verified decision-maker contacts tracked across these 1,005 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 7, 2026.
Ready to reach these companies? Verified emails and direct dials for all 1,005 baseball leagues worldwide. Start with a free account, no credit card.
Download this list →Related lists
Browse the directory
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.