DAN Europe


DAN Europe exists to assist and protect all divers through the most extensive and reliable network of diving physicians worldwide. We offer the community numerous pioneering services, including the first-ever insurance designed specifically for divers. We also conduct scientific research to better understand diving physiology and share that knowledge with the goal of making diving a safer, more accessible activity. We develop first aid educational programs to preserve life, in and out of the water. We recognise the unique beauty and fragility of the Blue Planet, and act as ambassadors for more sustainable practices within our community.

Dirty Dozen Expeditions


The Dirty Dozen Expeditions specializes in creating expertly curated technical diving itineraries that explore some of the most remote places on the planet which include Truk Lagoon, Bikini Atoll, Galapagos and Palau. What sets us apart is our drive to further the dive industry by connecting top-level divers with our customers with each trip forming a unique team of like-minded individuals with a fine balance of some serious exploration and good fun. Want more than your average dive trip where life onboard is as fascinating and enjoyable as life beneath the surface? You Got It!

Dive Rite


Established in 1984, Dive Rite is a leader and pioneer in technical diving. Born from a need for high quality cave diving gear, some of Dive Rite’s early products included the first commercially available backplate and first BCD specifically designed for doubles. Over the years their product line has continued to grow to include a full range of gear recreational divers as well.
In 2005 Dive Rite released the O2ptima CCR. Since its release the O2ptima has received many upgrades and innovations, continuing to be an innovative driver in the market. The latest release was the O2ptima CM chestmount CCR in 2020.




Divesoft is dedicated to providing customers with superior quality specialized diving equipment. The team is committed to continuous research and development to ensure our products are of the highest standards to meet the specific requirements of our customers. The products are developed and tested with constant focus on implementation of the most advanced technologies available while maintaining simplicity and reliability. All of the products are manufactured, assembled and tested at our state-of-the-art factory in the Czech Republic.


Enjoy Diving/Cave Training Mexico


Mexico and in particular the Riviera Maya are rich of diving opportunities from the famous and adventurous cenotes to ocean diving at Playa or Cozumel, with bull sharks in Winter and whale sharks in summer.
Many years ago, we moved to Mexico from Europe and opened our company Enjoy Diving/Cave Training Mexico in Playa del Carmen, and have been working in the Riviera Maya for the last 23 years. We have a wide experience in cenote and ocean diving. We offer all type of diving as well as courses from recreational to technical and rebreathers. However, we specialize in full cave courses, because of our location.
Our staff is formed by highly professional instructors and guides who like their job and give their best daily. We focus on customer care service, and we provide personalized diving services both for single divers as well as for groups. Our facility is CCR friendly, and we provide guides able to dive with CCR units for your full enjoyment of your dives. Our team members speak English, French, Italian, Spanish, German, and Swiss German.


FATHOM Dive Systems


FATHOM Dive Systems is a design and manufacturing company that focuses on life-support equipment for underwater exploration.
FATHOM is the brainchild of Charlie Roberson, a cave diver and active explorer, who initially set out to produce equipment for his own exploration.
FATHOM products include the backmount Mk III CCR and the sidemount Gemini CCR. FATHOM Expeditions brings like minded divers together for CCR focused diving in interesting and challenging locations worldwide.

Fourth Element

Fourth Element


Fourth Element is the world’s leading sustainable dive brand. We’ve worked tirelessly to create products that deliver great diving performance with minimal impact on the environment and we never compromise on quality, durability or performance. As world leaders in thermal protection, we continue to keep people warm from the bottom of the Antarctic Ocean to the top of Mount Everest.
Our product development continues to challenge the way things have always been done, minimising our impact on the environment where possible. With users including FBI dive teams, the Norwegian Navy and the US National Parks Service, Fourth Element products are proven in the most demanding conditions worldwide.

Fourth Element



Garmin’s outdoor segment is always innovating and developing technologies to enhance your diving experience. We have a solution for every diver – from the Descent G1 Series that includes solar charging options to Descent Mk2i with air integration. No matter your preference, all of our watches offer a bevy of diving features, as well as multisport training and smart features for your life above water.

Fourth Element



Halcyon began as a group of divers who knew exactly what they wanted but couldn’t find it in a dive store. Our passion for diving led us to designing wings and lights to satisfy ourselves. We soon discovered that we were not alone in our pursuit of equipment that could radically improve every diver’s comfort; from the newest recreational diver to supporting divers doing the most aggressive technical dives ever completed. Our founders, owners, and senior management have a long history as diving pioneers, with diverse backgrounds, ranging from academia to manufacturing to consulting. They all share one common thread: each of their log books records of an average of 20 years of diving.

Heritage Malta

Heritage Malta


Malta’s incredibly rich and multi-variegated historical past is mirrored in the diversity of its underwater heritage. A subaquatic museum waiting to be discovered. Systematic undersea archaeological surveys off the coast of the Maltese Islands have revealed a multitude of underwater archaeological sites. These range from a 2,700 year-old Phoenician Shipwreck, Roman and Early Modern Shipwrecks to dozens of aircraft crash sites, submarines, and battleships from the First and Second World Wars. This underwater cultural heritage legacy has made Malta the curator for a uniquely well-preserved cultural resource that is global and belongs to all humankind. The recognition of responsibility towards properly managing and protecting Malta’s underwater cultural heritage resulted in the decision to create the Underwater Cultural Heritage Unit (UCHU) within Heritage Malta, the national agency for cultural heritage, conservations and museums. The main objectives of the UCHU are the identification and documentation of sites, site valorisation and protection, as well as public access management and public outreach. The UCHU aims to continue opening underwater sites for public access, whilst ensuring that the authenticity and integrity of Malta’s UCH is protected, in keeping with the UNESCO Convention on the Protection of the Underwater Cultural Heritage.

Heritage Malta


IANTD (International Association of Nitrox & Technical Divers)

We has been at the cutting edge of diver training since 1985. From the first nitrox course in the world to our Tek Lite programs which allow for reduced narcosis in the entry-level tech depth range, through to CCR Cave and Expedition Trimix, we’ve been setting the standard since the very beginning. We offer a complete range of training courses from Open Water Diver through to Expedition Trimix using Open Circuit, Closed Circuit & Semi-Closed Circuit equipment and a full range of cave diver training programs. Our instructor trainers and instructors represent some of the very best technical divers and educators in the USA and all over the world.

All our programs, from entry level upwards, equip a diver with the skills and knowledge to become a safe, responsible, self-sufficient diver, in depth survival skills mentally and physically. It’s a philosophy reflected in our Open Water Nitrox Diver course – why not start with the safety benefits of Nitrox from your very first dive? – and continues throughout all our training programs.In 1985, we released the world’s first enriched air diver certification – 10 years before other agencies followed suit. Since then, we’ve stayed at the very forefront of diver education, leading the way so that others may follow.

iQSub Technologies

iQsub has been designing and manufacturing diving equipment since 2000, specializing in high quality rebreathers and underwater housings for GoPro cameras. The most popular iQsub products sold worldwide are the XCCR rebreather, FLEX2 side-mount rebreather and the BOV Shrimp.

Products that will be exhibited at RF4 are: Rebreather XCCR, FLEX2 CCR rebreather, GoPro HERO cases, and the BOV Shrimp & SM BOV NEO


The JJ-CCR rebreather has been called ‘the 4 x 4 of the rebreather community’ which in many ways is the perfect description as it is built for all types of terrain and can be adapted to handle the most demanding adventures. The JJ-CCR demands a skilled diver fully aware of the pros and cons of technical rebreathers, it was engineered by professional wreck divers who needed a solid tool to do the job in the deep, dark, and cold waters of the Baltic Sea. The environment the JJ-CCR was built for demands a rebreather that is simple and sturdy in regards to handling and ruggedness, independent of the situation and operational environment. All of the components of the JJ-CCR have been carefully selected and are there for a reason! Each detail has a purpose and every solution can be justified. The versatility of the rebreather makes it adaptable for whatever dive you are planning.

Lungfish Dive Systems

Formed in 2008 with the aim of developing the safest and most practical closed circuit diving equipment possible, the Lungfish team brings together decades of experience in underwater engineering, advanced electronics, and human physiology.​With expertise bridging the earliest days of digitally controlled rebreathers to the latest cutting-edge technology, we bring you state of the art solutions tempered with the rugged reliability that comes from sheer time spent underwater.

 After many years supplying R&D, commercial diving, and special projects, we bring you a range of ORCA CCR’s available with a unique ergonomic mouthpiece or full-face mask configuration. It combines many unique technologies to deliver a rebreather with the flat-out performance and durability required by the expert and the safety/ease of use needed by the beginner. If you want the best rebreather possible to enjoy the underwater environment in peace and comfort, look no further than Lungfish Dive Systems.



M3S specializes in the development of breathing apparatus. The company, located in the Var County (France), was founded in 2012. The entire team at M3S is passionate about scuba diving and cave diving. Our underwater experiences and passion for diving led us to embark on this insane challenge of reinventing the diving rebreather. M3S has managed to innovate, develop and manufacture the TRITON, a mechanical chest-mounted rebreather intended for all recreational and technical divers. The TRITON is the smallest and lightest rebreather on the market, as well as the easiest to breathe.  The TRITON has extended beyond recreational and technical diving due to its acquired expertise, and is now being used in professional and military environments.  We advocate the “Made in France,” which has led us to partner and collaborate with several French companies specializing in their respective fields.


“All life is part of a complex relationship in which each is dependent upon the others, taking from, giving too, and living with all the rest.”― Jacques-Yves Cousteau

Now in our 34th year, O’Three passion for dry suit perfection remains and our commitment to deliver the very best customer care is undiminished. Since day one, these two core values have been the foundation on which O’Three has built  its reputation. A reputation which we are told is second to none. Long term relationships with cave diving legends Rick Stanton, John Volanthen, and the Wet Mules to name just a few are testament to our willingness to listen and deliver wherever possible.
Whether you’re exploring the boundaries, or just enjoy the thrill of the ‘silent world’, O’Three has a range of dry suits, which we know will guarantee you enjoy every minute of your underwater experience wherever you are in the world.

Oxygen Scientific


Oxygen Scientific GmbH focuses on research and development of solid-state oxygen sensors, innovative breathing systems, dive computer technologies and monitors for physiological parameters including arterial oxygenation, ecg and breathing rate.

The company was founded in 2021 by Assoc. Prof. Dr. Arne Sieber, who is author of numerous scientific publications in the fields of diving technologies and medicine. He is also inventor of significant innovations
related to rebreather diving, including mouthpiece mounted near eye dive computers, underwater touchscreen or wheel based user interfaces and the oxygen sensor validation technology that is a core element of Poseidon

Oxygen Scientific GmbH is based in Graz, Austria.



PADI® (Professional Association of Diving Instructors®) is the largest purpose-driven diving organization with a global community of 6,600 dive centers and resorts, 128,000 professional members and more than 29 million certified divers to date. Committed to our blue planet, PADI makes the wonder of the underwater world accessible to all, empowering people around the world to experience, explore and take meaningful action, as Ocean Torchbearers, to protect the world beneath the surface. For over 50 years, PADI is undeniably The Way the World Learns to Dive®, setting the standard for the highest quality dive training, underwater safety and conservation initiatives while evolving the sport of diving into a passionate lifestyle. For divers by divers, PADI is obsessed with transforming lives and, with its global foundation, PADI AWARETM, creating positive ocean change. Seek Adventure. Save the Ocean. www.padi.com




Dive RAID International (RAID) is a different approach to scuba and free diving focused on skill, comfort, and safety. Our promise is to bring the adventure and thrill of the underwater realm to our students from Try Dive and Open Water 20 to advanced rebreather and cave exploration. We deliver our promise via inclusive, technology-driven, programs delivered by some of the smartest, most experienced instructors and dive centres across the globe. That is The RAID Way and we’re proud to bring positive change to the industry. We’re ready to take you diving. 

Dive Systems + Ratio Computers

Founded in 1993, Dive Systems, is an Italian Company specialized in manufacturing technical diving equipment focusing on drysuits, BCD’s, fins and diving computers (Ratio Computers), made in our 2500m2 plant, located in Tuscany. Handmade tradition, materials’ quality, attention to details and customer care are the ways Dive System drysuits and BCD’s are made. Drysuits can be also be tailor-made and its contours and lines traced on Neoprene or Trilaminate. Ratio Computers develops and manufactures recreational and technical dive computers offering the highest quality technologies available, the best materials and a state-of-the-art engineering. The Company primarily invests in R&D with continuous research. Direct production and marketing of all its products, guarantee the highest level of control throughout the different stages. 

Rebreather Training Council


The mission of the RTC is to promote the safe use of rebreathers by creating industry-agreed training standards and operational protocols. These standards and protocols will be updated and amended as needed to reflect the evolving state of the art and best practices available.
RESAThe RTC works closely with the Rebreather Education and Safety Association (RESA) through the Combined Rebreather Industry Standards Alignment Group (CRISAG) so that training organizations and manufacturers can cooperate for the benefit of rebreather divers globally.

rEvo and Horizon


rEvo rebreathers designs and manufactures rebreathers by divers for divers. The rEvo III key features are a dual scrubber system, true redundancy up to sensor level. Packed in a light weight and travel friendly design. Along with its worldwide instructor network, service center network and field repairable design, it makes up for a highly reliable CCR with low operational cost.
The Mares HORIZON is a recreational SCR based on rEvo technology, engineering in combination with an elegant Italian design. Due to its concept, the HORIZON stands out in its simplicity to use, and its intrinsic failsafe design. Because of the simplified logistic demands and lightweight housing, the Mares HORIZON is a true travel companion.

Historical Tech Rebreather Exhibit


We are pleased to present a never before seen historical tech exhibit, which will include the following rebreathers; an Electrolung, Drager Atlantis, AP Buddy Inspiration, a KISS Classic, Cis-Lunar MK 5, Smithers Megalodon, VR Ouroboros, VR Sentinel, and a Hollis Explorer. In addition, L. Tracy Robinette, with the help of Michael Menduno and SJ Bennett, has created a large display depicting a Genealogy of Modern Closed Circuit Rebreathers. In addition, we are including free downloads of aquaCORPS Journals. Special thanks to: Jason Black, Joseph Bosquez, Brian Greene, Lisa Mongelli and the History of Diving Museum, Nadir Quarta, Ed Uditis and Alan Whitehead for helping to make this exhibit possible .

Scuba Seekers + MV Legends


Scuba Seekers is a world class diving facility specialising in CCR Courses, Diving and Training. Our Headquarters is located in sunny Dahab, Egypt, home of the famous BLUE HOLE, Canyons, and many more easy to access shore dive sites. In addition, Scuba Seekers offers a CCR Focused Liveaboard based in Hurgharda, Egypt. The MV LEGENDS is one of a kind Liveaboard built totally with CCR divers in mind; at its stern, a mechanical DIVERS LIFT makes getting in and out the water with full CCR equipment a breeze. Dive Trips on MV LEGENDS are made unique with the focus on EXPLORATION and exceptional diver experience whether you are into wrecks, fish or corals we have you covered. We offer GUE, TDI and IANTD CCR Courses, on JJ, Liberty and rEvo and we also support all types of CCR. OC, REC and Non-Divers are all welcome at both facilities. 



Shearwater Research designs and manufactures wearable dive computers and rebreather control systems in Richmond, Canada, for all types of divers demanding more from themselves and their diving experience. After enjoying wide acceptance in technical diving circles, Shearwater has gained popularity amongst recreational divers as well. Whether you’re an air, nitrox, multi gas trimix, closed circuit rebreather diver, or freediver, Shearwater offers products which are powerful, simple, and reliable. Shearwater dive computers feature intuitive menus and interfaces that make them easy to use for divers at all development levels. Our computers are designed to improve the journey for divers everywhere.


SUEX was founded in 2000 with the aim of producing high-performance underwater vehicles designed for long-range technical and professional diving. Today, SUEX represents a cutting-edge technology within the underwater mobility. The evolution of SUEX DPVs over the years has succeeded in meeting the complex requirements of the most extreme technical and professional applications, and in offering diving aficionados a unique and engaging diving experience, even at a recreational level.

SUEX DPVs combine technology and reliability for high performance inabsolute safety. Each model is tested by simulating real-world conditions to verify its performance, reliability and manoeuvrability, and improving its design and equipment. DPV and state-of-the-art integrated communication systems offer a unique underwater experience. Innovation makes the experience simple but unforgettable.

Technical Diving International


Technical Diving International (TDI) is the largest technical diving agency in the world. As one of the first agencies to provide training in mixed gas diving and rebreathers, TDI is an innovator of new diving techniques and programs which previously were not available. With more than twenty-four regional offices worldwide, TDI divers are recognized everywhere as the gold standard by which others are measured. TDI divers explore wrecks like the Andrea Doria, Lusitania, and the Prince of Wales along with underwater caves in Spain, Australia and Mexico using diverse types of advanced diving equipment.  The agency is committed to offering the highest quality training supported by the latest materials with the most up to date information and techniques. All TDI courses are developed and written by authors that acutely conduct the type of diving they are writing about, making TDI the most recognized technical organization in the world. 

The Human Diver

The Human Diver


The Human Diver (www.thehumandiver.com) is the only organisation in the world focusing on the development and delivery of educational materials specifically focused on Human Factors, Non-Technical Skills, psychological safety, and incident investigation/learning from unintended outcomes in the diving domain. Non-Technical Skills and Human Factors are the cornerstone of safe diving operations – they help divers, instructors, and dive centre staff be safe and effective, helping them to manage risks and uncertainties, and to learn from incidents/near-misses. Outcomes in diving are a combination of technical skills, context, some luck, and Non-Technical Skills. Non-Technical Skills (decision-making, situation awareness, communication, leadership & followership, teamwork, and performance shaping factors) are rarely taught in formal diving courses. The Human Diver’s programmes are delivered via online, live webinar, and face-to-face, with instructors ranging from the West coast of the US to Australia. They are accessible to all and relevant to everyone. Apply Human Factors. Master the Dive.

The Human Diver



XDEEP brand was born in 2011 from the same passion which drove explorers to find new paths. After years of rapid growth, with tens of thousands of BCDs sold every year and a distribution network in more than 70 countries, XDEEP is now the world’s leading manufacturer of BCDs and accessories for cave and technical divers. XDEEP BCDs are designed and made in the EU using top-quality components from Europe and USA and manufactured in XDEEP’s own facility in Poland. If it carries the XDEEP logo, it carries our passion and an assurance that we have delivered the very best.

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