Company lists · Data refreshed September 2026
Top 25 Cave diving training organizations worldwide
RevenueBase identified 1,953 cave diving training organizations worldwide as of September 2026 and tracks 12,599 professional contacts across them, including 628 with verified work emails. The United States is the largest market and Playa Del Carmen the largest hub.
This list covers cave diving training organizations 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 cave diving training organizations 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 cave diving training organizations worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 4,423 contacts → | ||||
Partial evidence “PADI® (Professional Association of Diving Instructors®) is the world’s largest ocean exploration and diver organization, operating in 186 countries and territories, with a global…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 718 contacts → | ||||
Indirect evidence “Scuba Schools International (SSI) was established in 1970 with the vision of making it possible for anyone to learn how to dive safely.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 183 contacts → | ||||
Indirect evidence “The National Association of Underwater Instructors (NAUI Worldwide) is a premier recreational dive certification and membership organization headquartered in Riverview, Florida…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 130 contacts → | ||||
Indirect evidence “Diventures was founded in 2009, with one location in Omaha, Nebraska, and has expanded to eighteen locations across twelve states.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 94 contacts → | ||||
Indirect evidence “FFESSM - Fédération Française d'Etudes et de Sports Sous-Marins.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 93 contacts → | ||||
Indirect evidence “Scuba Dive Certification Body” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 84 contacts → | ||||
Partial evidence “Our mission in life is to grow the nation’s love of scuba diving.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 74 contacts → | ||||
Strong evidence “IANTD Is The World's Largest Scuba & Rebreather Diving Training Organization Of Open Water, Nitrox, Enriched Air (EANx), Overhead Environment, Cave, Wreck, Recreational…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 73 contacts → | ||||
Strong evidence “Scuba Diving International is a Scuba training and certification agency.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 54 contacts → | ||||
Partial evidence “Global Underwater Explorers (GUE) is a nonprofit organization dedicated to advancing excellence in diving through high-quality education, global collaboration, and exploration.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 31 contacts → | ||||
Indirect evidence “Established in 1969 in Houston, TX, The Ocean Corporation stands as a beacon of unwavering commitment to quality education.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 30 contacts → | ||||
Indirect evidence “Your one stop source for everything underwater.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 28 contacts → | ||||
Indirect evidence “Com mais de 35 anos de experiência, somos uma empresa especializada em mergulho profissional e serviços subaquáticos, oferecendo soluções seguras, eficientes e de alta qualidade.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 27 contacts → | ||||
Indirect evidence “Force E Scuba Centers is recreational SCUBA company based out of South Florida, United States.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 25 contacts → | ||||
Partial evidence “NEMO Diving Center was established in 2014 in Dubai, UAE.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 25 contacts → | ||||
Strong evidence “At Dive Oahu, Inc, we offer PADI recreational scuba diving training from the Discover Scuba Diving experience to Rescue Diver and PADI Continuing Education courses to broaden your…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 24 contacts → | ||||
Partial evidence “Dive Rescue International provides superior training and equipment for all responders to aquatic incidents by providing peer reviewed best practices through innovative, industry…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 24 contacts → | ||||
Indirect evidence “India's only 5* PADI CDC, Tec IT and Freediving IDC center DM us to book in!” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 22 contacts → | ||||
Indirect evidence “L’Ecole Nationale des Scaphandriers (ENS) est l’une des quatre écoles francophones au monde destinée à la formation des plongeurs professionnels.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 21 contacts → | ||||
Indirect evidence “For over 30 years, East Coast Divers has been providing people in the New England area with world class scuba experiences.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 19 contacts → | ||||
Indirect evidence “We're a PADI 5 Star Instructor Development Center on the island of Bonaire -"Diver's Paradise!" With multiple locations around the island, you won't have to travel far to pick up…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 19 contacts → | ||||
Strong evidence “Commercial Divers International is Arizona's first surface-supplied diving, underwater welding, and hyperbaric medicine training school.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 18 contacts → | ||||
Indirect evidence “Experience the highlights of Mexico & the Dominican Republic with Pro Dive International!” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 17 contacts → | ||||
Indirect evidence “Kingfish Dive & Travel blev grundlagt i 2001 som en hobbyvirksomhed, af Jan Black og Morten Højgaard.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 16 contacts → | ||||
Partial evidence “The world's most unique diving adventures await at Deep Dive Dubai.” 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: cave diving training organizations. 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 cave diving training organizations.
- Partial evidence
- Its own public description names part of cave diving training organizations, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name cave diving training organizations. 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 1,953 cave diving training organizations worldwide
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Cave diving training organizations 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 cave diving training organizations, 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 cave diving training organizations are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “cave diving training organizations”. 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 cave diving training organizations), 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 cave diving training organizations, 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, 628 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.
Cave diving training organizations by location
6 lists · largest firstEvery Cave diving training organizations list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Cave diving training organizations based in the United States417
- Cave diving training organizations based in the United Kingdom114
- Cave diving training organizations based in the Netherlands59
- Cave diving training organizations based in Mexico56
- Cave diving training organizations based in Australia50
- Cave diving training organizations based in Canada46
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 cave diving training organizations, 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 cave diving training organizations are there worldwide?
RevenueBase identified 1,953 cave diving training organizations 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?
PADI, headquartered in Rancho Santa Margarita, tops this list with the largest team on record.
Which country has the most cave diving training organizations?
The United States leads with 417 companies, followed by the United Kingdom (114) and the Netherlands (59). Every cave diving training organizations list by country and city is linked on this page.
Which city has the most cave diving training organizations?
Playa Del Carmen leads with 13 headquartered companies, followed by Barcelona (12) and Phuket (10).
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 628 verified decision-maker contacts tracked across these 1,953 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.