Here’s a complete guide to the most popular Scuba gear manufacturers the World over in alphabetical order. If you missed brands from A-M Click here.

(A-M), O-Z

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Ocean Reef
For nearly 50 years, OCEAN REEF has been involved in the underwater diving industry. They contributed this industry a wide range of scuba products from fins and snorkels to the most modern systems of underwater communication. Their most popular product is the full face mask series called the Neptune Series.
Worth a mention - Ocean Reef Neptune Space Predator Full Face Mask, Ocean Reef GSM Communication System

Oceanic (Hollis)
Oceanic founder and CEO Bob Hollis took up scuba diving in the late 1950’s when recreational diving was still in its infancy.Hollis’ love for underwater photography led him to start designing and manufacturing underwater camera and strobe housings. Before long, divers and others were asking Hollis to make equipment for them. Oceanic’s today manufactures high performance instruments, regulators, buoyancy compensators, masks, fins, snorkels, thermal wear and accessories sold through more than 600 U.S. dive retailers.
Worth a mention - Oceanic Alpha 8 SP5 Piston Regulator, Oceanic EOS FDX10 DVT Regulator, Oceanic Vortex V-16 Split Fins, Oceanic Islander 2 BCD

Omega Aquatics
Inventors of Flipfins™ -the awards winning, patented, high-performance swim fins, scuba fins, snorkeling fins, rescue fins, military fins, diving fins and float tube fins that make getting in and out of the water effortless. They’re easy as wearing ordinary shoes. No more waddling.
Worth a mention – Omega Aquatics Amphibian Classic Scuba Fin,  Omega Amphibian Stealth Rescue Fin

Pinnacle Aquatics
Pinnacle Aquatics is the fastest growing manufacturer of thermal protection in the world. Recently acquired by Zeagle Systems, the Pinnacle range still remains. Whether you’re snorkeling above a tropical reef near the Equator, or if you are diving beneath a polar ice cap they bring you the best thermal protection that money can buy with wetsuits, drysuits, boots, gloves, goods, bags and belts designed and manufactured for divers by divers.
Worth a mention - Pinnacle Cruiser 5mm Men’s Jumpsuit Package, Pinnacle Element 7mm Women’s Jumpsuit Package, Pinnacle 7mm Merino-Barracuda Boot

ScubaPro
Scubapro brought to the market many innovations since the 1960′s for diving that are still being used today. Their catalog of products feature everything a scuba diver could want, including regulators, re compression chambers and even submarines.
Worth a mention - Scubapro Re-Styled Air 2, Combination Octopus/Inflator Regulator, ScubaPro Jet Fins, Black, Scubapro MK25/S600 Regulator, ScubaPro Frameless Single Window Mask

Sherwood Scuba
Sherwood was the industry’s first manufacturer of Scuba regulator components, responsible for allowing people to breathe underwater and kick starting the sport of Scuba diving. As scuba diving grew in popularity, Sherwood grew. Today, the Sherwood brand has expanded into a full line of dive equipment and products.
Worth a mention – Sherwood Blizzard Regulator, Sherwood SR1 Regulator, Sherwood Kinesis Open heel Fins, Sherwood Mako Frameless 1 Window Mask

Suunto
Innovators and pioneers of the first marine compass, Suunto is the leading name in the Scuba Diving industry for wrist dive computers. They paved the way for the next generation wrist-top computers and continue to excel in the field of sports instruments with their range of products.
Worth a mention – Suunto D6 Wrist Computer, Suunto “D9″ Hoseless Air/Nitrox Wrist Computer with Transmitter,  Suunto Cobra Air/Nitrox Air Integrated Computer Console

Tektite
Manufacturer of LED Flashlights, strobes, and marker lights used in extreme environments including Scuba diving.
Worth a mention - Tektite Expedition 1400- 14 LED,  Tektite Mark Lite Strobe, Tektite Trek 4, 4 LEDs

Tusa
TUSA is one of the world’s first scuba equipment manufacturers, founded by Kazuo Tabata in Tokyo, Japan in 1952. From the first handmade mask and goggles built in Mr. Tabata’s garage, Tabata products include VIEW Swimming Gear, Reef Tourer Snorkeling Equipment and scuba diving gear among other recreational sporting goods.
Worth a mention - Tusa X-Pert Zoom Z3 Open Heel Split Fins, Tusa Zen Wrist Dive Computer, Tusa Conquest Buoyancy BC, Tusa Concero One Window Mask

Uwatec
Founded in 1983 in Hallwil, in the heart of Switzerland UWATEC introduced their first dive computer in 1987, the Aladin PRO and ever since became synonymous for diving computers. Joining hands with ScubaPro a Johnson Outdoors Inc. company, SCUBAPRO UWATEC remains a premier manufacturer of scuba diving equipment and spreads over 13 countries, covering 4 continents.
Worth a mention - Uwatec Aladin Smart Z Hoseless Wrist Air/Nitrox Computer, Uwatec Aladin Smart Com, Air/Nitrox, Air Integrated Console, Uwatec Aladin Tec 2G Wrist Computer

Zeagle
The family owned Zeagle Systems Zeagle led the industry towards the concept of integrated weight buoyancy systems and today integrated weight systems represent the majority of buoyancy systems sold. They manufacture and design buoyancy systems, regulators, and many other dive products.
Worth a mention- Zeagle 911 BCD with Ripcord System, Zeagle Envoy Deluxe Yoke Regulator,  Zeagle Stiletto BCD with the Ripcord Weight System