We track 61 dive operators in Pacific Northwest. 19 teach certification courses (19 PADI, 3 NAUI). 5 run snorkelling trips. 1 offer accommodation alongside diving. Listings are ordered by Fin Rank: a published score for how complete and verified each listing is.
The 8 highest-ranked of 61. How Fin Rank works
| Rank | Operator | TripAdvisor | Try dive | Agencies | Website | |
|---|---|---|---|---|---|---|
| 1 | Seattle Dive Tours | 5.0(69) | none | none | PADI | Visit |
Which centres run each site, named on their own websites or confirmed by the owner.
Fin lists 61 dive operators in Pacific Northwest. 19 of them run certification courses.
PADI is the most common agency (19 centres), followed by NAUI (3). SSI, SDI also appear.
1 operator in Pacific Northwest offers accommodation alongside diving.
5 of the 61 operators we track run snorkelling tours.
Operators are sorted by Fin Rank, a 100-point profile strength score: contact details, what they offer, the dive sites they run, their Google reputation, whether the owner has claimed the listing, and whether their own website links to Fin. 0 listings here are owner-verified. The formula is published in full on the Fin Rank page.
Seattle Dive Tours is a boutique scuba diving company providing guided tours, training, and travel across the Salish Sea and around the world. They offer PADI scuba diving training ranging from Discover Scuba through Divemaster in small or private classes. The company is a PADI Eco-Dive Center that organizes underwater clean-ups and donates a portion of its revenue to environmental non-profits.
Thunder Reef Divers Inc is a PADI/NAUI dive center offering a wide variety of training opportunities, equipment sales, service, and organized dive trips. They have the largest in-stock inventory of scuba and snorkel gear in the Portland/Vancouver area. The shop is located at 12104 NE Hwy 99, Vancouver, WA 98686.
YSS Dive Tacoma is a NAUI Platinum Pro Dive Center offering a range of NAUI certifications, from beginner to professional levels, as well as Discover Scuba Diving experiences and guided tours. They also provide equipment sales, service, and rentals, and organize dive travel.

Lighthouse Diving Center is a dive shop and training facility established in 1972, offering sales of new and pre-owned equipment for recreational and commercial diving, as well as freediving and snorkeling. They provide a range of dive training courses and are known for their focus on customer experience.
YSS Dive is a dive shop located in Shelton, Washington, offering guided tours and PADI scuba certification classes, including a dry suit class. They also provide restroom and WiFi access.
Argonaut Diving is a dive school offering a range of courses from beginner to instructor levels, using both PADI and SDI certification systems. They also organize local and international dive trips, and monthly fun dives. Their focus is on dive education and safety, rather than gear sales.
Evergreen Dive Service is a dive school located in Everett, Washington. They offer services with operational business status. The business has a 4.7-star rating from 53 reviews.
Under Sea Adventures is a sporting goods store in Kennewick, Washington, specializing in scuba diving and snorkeling gear. They also arrange dive trips and have a high rating of 4.9 stars from 65 reviews. The store is wheelchair accessible and offers Wi-Fi.

Underwater Sports is a PADI 5-Star dive center that has been serving the Seattle area since 1950. They offer a full range of PADI courses, equipment sales and servicing, and dive trip arrangements. They have multiple locations, including one in Bellevue.
TL Sea Diving is a PADI 5-Star Instructor Development Course training center based in Seattle. The operator provides scuba diving instruction, equipment sales, and organizes club dives and boat charters.
| 2 | Thunder Reef Divers | 4.8(57) | none | none | PADI · NAUI | Visit |
| 3 | YSS Dive Tacoma | 5.0(30) | none | none | NAUI · PADI | Visit |
| 4 | 4.5(111) | none | none | PADI · SDI | Visit |
| 5 | YSS Dive | 4.8(134) | none | none | PADI | Visit |
| 6 | Argonaut Diving | 4.9(50) | none | none | PADI · SDI | Visit |
| 7 | Evergreen Dive Service | 4.7(53) | none | none | none | Visit |
| 8 | Under Sea Adventures | 4.9(65) | none | none | PADI · SSI | Visit |
