Company lists · Data refreshed September 2026
Top 25 Technical diving instruction companies worldwide
RevenueBase identified 3,032 technical diving instruction companies worldwide as of September 2026 and tracks 18,973 professional contacts across them, including 1,552 with verified work emails. The United States is the largest market and Dubai the largest hub.
This list covers technical diving instruction companies 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 22, 2026. Country and city lists for technical diving instruction companies 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 technical diving instruction companies 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 22, 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 22, 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 22, 2026Thanks. The Data Team will review it. | |||||
| 4 | 176 contacts → | ||||
Indirect evidence “Welcome to Subsea Global Solutions where EVERY DAY our goal is to deliver unrivaled service.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 5 | 150 contacts → | ||||
Partial evidence “Drass has been continuously active since 1927 and currently is the largest diving manufacturing business, running most of the ongoing projects.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 6 | 146 contacts → | ||||
Partial evidence “PETRODIVE is an independent diving company providing the Maritime and the International Oil and Gas industry with a complete underwater contracting service.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 7 | 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 22, 2026Thanks. The Data Team will review it. | |||||
| 8 | 119 contacts → | ||||
Partial evidence “SHELF is a totally independent commercial diving, engineering, project management and marine support & logistics company.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 9 | 104 contacts → | ||||
Strong evidence “SEAPRO is one of the pioneer diving companies in Egypt as a Middle East Leader in the field of Marine works to provide highly specialized technical service to the Offshore oil &…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 10 | 94 contacts → | ||||
Indirect evidence “DEEP is an international ocean engineering and technology company on a mission to make humans aquatic.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 11 | 93 contacts → | ||||
Indirect evidence “Scuba Dive Certification Body” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 12 | 84 contacts → | ||||
Indirect evidence “At Huish Outdoors, we've brought together the Best Brands in Dive to create the leading scuba and immersion technology company in the world.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 13 | 81 contacts → | ||||
Indirect evidence “How many local dive shops can say they have been in business for over 35 years?” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 14 | 76 contacts → | ||||
Partial evidence “In the 20 years since inception Shearwater has captured a dominant market position among scuba diving computers with a distribution network of more than 600 dealers in 90…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 15 | 74 contacts → | ||||
Partial 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 22, 2026Thanks. The Data Team will review it. | |||||
| 16 | 73 contacts → | ||||
Partial evidence “SCUBAPRO is the iconic mark of the world’s most accomplished scuba divers, the preferred and recommended choice of elite diving professionals around the globe.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 17 | 73 contacts → | ||||
Partial evidence “Scuba Diving International is a Scuba training and certification agency.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 18 | 67 contacts → | ||||
Indirect evidence “A RCS Subaquática é uma empresa de mergulho e soluções subaquáticas, criada por engenheiros, técnicos e mergulhadores preocupados com a segurança nas operações de mergulho e com a…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 19 | 59 contacts → | ||||
Indirect evidence “Drafinsub operates in the marine field since 1977, undertaking any kind of underwater activity, in shallow or deep water, offshore and onshore.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 20 | 57 contacts → | ||||
Indirect evidence “Discover the Dune Universe.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 21 | 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 22, 2026Thanks. The Data Team will review it. | |||||
| 22 | 48 contacts → | ||||
Partial evidence “Midco Diving is a contracting & marine services company performing professional dive services worldwide.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 23 | 48 contacts → | ||||
Partial evidence “KD Marine are a commercial diving contractor providing underwater intervention services to the offshore oil and gas industry.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 24 | 47 contacts → | ||||
Partial evidence “ADRENO is one of World's biggest and best one-stop freediving, spearfishing and scuba diving stores.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 25 | 43 contacts → | ||||
Partial evidence “Spanish offshore diving company since 1976, located in Tarragona, with experience in North and West Africa, Atlantic area, Mediterranean Area, Caspian sea, Persian Gulf, etc.” Source: RevenueBase Database · checked Sep 22, 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: technical diving instruction companies. 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 technical diving instruction companies.
- Partial evidence
- Its own public description names part of technical diving instruction companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name technical diving instruction companies. 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 3,032 technical diving instruction companies worldwide
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Technical diving instruction companies worldwide at a glance
As of Sep 22, 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 technical diving instruction companies, 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 technical diving instruction companies are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “technical diving instruction companies”. 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 technical diving instruction companies), 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 technical diving instruction companies, 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, 1,552 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 22, 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.
Technical diving instruction companies by location
13 lists · largest firstEvery Technical diving instruction companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Technical diving instruction companies based in the United States635
- Technical diving instruction companies based in Spain163
- Technical diving instruction companies based in the United Kingdom163
- Technical diving instruction companies based in France115
- Technical diving instruction companies based in the Netherlands91
- Technical diving instruction companies based in Australia89
- Technical diving instruction companies based in Indonesia86
- Technical diving instruction companies based in Thailand77
- Technical diving instruction companies based in Canada74
- Technical diving instruction companies based in Mexico73
- Technical diving instruction companies based in Brazil65
- Technical diving instruction companies based in India57
- Technical diving instruction companies based in the United Arab Emirates44
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 technical diving instruction companies, 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 technical diving instruction companies are there worldwide?
RevenueBase identified 3,032 technical diving instruction companies 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 technical diving instruction companies?
The United States leads with 635 companies, followed by Spain (163) and the United Kingdom (163). Every technical diving instruction companies list by country and city is linked on this page.
Which city has the most technical diving instruction companies?
Dubai leads with 18 headquartered companies, followed by London (16) and Playa Del Carmen (16).
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 1,552 verified decision-maker contacts tracked across these 3,032 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 22, 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.