Thailand – Australia – United Kingdom

Tech Dive Crew

Our technical training team is comprised of skilled and experienced individuals who excel in their own field of expertise. No one can train divers to do everything, with that we have specialists who focus on their own personal interest in the area they’re responsible for.

Our team work and live in a very small community of technical deep diving explorers who’s main goal is to train and expose divers to this ever growing style of deep water exploration and advanced scuba industry education.

We provide technical diving in English, French, German, Spanish, Swedish, Thai and Japanese.


James Thornton-Allan

Director Technical Operations

James Thornton-Allan

James comes from England but was raised in Canada. James came to Koh Tao after a term of service in England’s Royal Marine Commandos and found Koh Tao a great destination to start a new career in his hobby of diving.

James is the Director of Big Blue Tech and is responsible for all activities of Big Blue Tech including expeditions, bookings, training and working with our recreational department to provide technical support and education.

BSAC Expedition Trimix Instructor Trainer

TDI Advanced Trimix Instructor

SDI Specialty Instructor

SSI DCSI Instructor

PADI TecRec Master Instructor

A.S.S.E.T Compressed Air Systems Tech

Open Water Sidemount Instructor

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Contact: James@bigbluetech.net


Ash Dunn

Senior Technical Instructor

Ashely Dunn

Ash comes from England where he worked as a Plumber and played Basketball for his country. Ash quickly found that recreational diving wasn’t for him and was missing a extreme side he was looking for. Combined with his technical skills and his love for a challenge he found technical diving held the allure and interest to keep him diving everyday with a smile on his face.

Ash is one of our technical diving instructors who’s main responsibility is the teaching of our technical diving curriculum to new students or those wishing to continue their education. Ash brings his experience as a diving instructor in England to the team, this diversity of education to the European way of conducting diving add value to the entire team.

BSAC Technical Instructor

TDI Technical Instructor

Bauer Certified Compressor Technician

Aqualung Certified Technician

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Contact: Ash@bigbluetech.net


Patrick Tassin

Course Director

Patrick’s main role is conducting PADI instructor training courses and TecRec Programs. Patrick conducts monthly Instructor Development Courses (IDC) and weekly PADI TecRec courses while also being one of the few bilingual PADI Course Directors in the region speaking both French and English.

While not working on PADI instructor level and TecRec programs Patrick is an avid cave diver and long distance runner.

PADI Course Director

PADI TecRec Instructor Trainer

Aqualung Service Technician

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Contact: Patrick@bigbluetech.net


Chris Haslam

Instructor Trainer

Chris comes from the land down under and is part of our global tech team representing Big Blue Tech in Cairns, Australia where he teaches the full range of programs from beginner to instructor as he is a SSI Instructor Trainer.

In addition to his role with SSI Chris is an avid technical diving instructor with experience in multiple countries and environments.

While not working in diving Chris can be found out on the boats on ventures for weeks at a time and traveling around representing Technical Diving in Australia

SSI Instructor Trainer

SSI TXR Technical Instructor

PADI Instructor

TDI Instructor

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Contact: Chris@bigbluetech.net


Ben Reymenants

Technical Instructor Trainer

Ben Reymenants

Ben’s main role is conducting our instructor training courses and cross-overs along with the pinnacle of extreme diving with Cave and Rebreathers.

Ben is one of the most experienced instructors in the world and holds records including the open water dive to 200m and a cave dive to 240m. In addition to these qualifications ben is an avid Athlete competing in runs and Ironmans around Thailand.

SSI TXR Advanced Trimix Instructor Trainer

TDI Advanced Trimix and Full Cave Instructor Trainer

SDI Instructor Trainer, with Solo Specialty

ISC Megalodon Mod 3 Instructor

CCR Full Cave Instructor

Dive Medic and Chamber Operator Instructor

PADI Tec Trimix Instructor

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Contact: ben@bigbluetech.net


Yvonne Fries

Technical Diving Instructor

Yvonne Fries

Yvonne is from Germany where she worked in the insurance business and played Squash for her country. Yvonne left Germany many years ago to travel the world and ended up in Koh Tao where she became a diving professional and later got involved with technical diving.

Yvonne is one of our technical diving instructors who works with all nationalities but speaks German fluently.

“Award Winning” SSI Instructor

PADI Instructor

SSI Technical Instructor

BSAC Technical Instructor

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Contact: Yvonne@bigbluetech.net


Helen Artal

Technical Diving Instructor

Helen Artal

Helen is from England where she most recently worked on cruise ships. Helen came directly from Australia where she was working as a SSI Instructor and came to Koh Tao to for a more chilled out lifestyle. Helen quickly adapted to the “tech way” of doing things and found she wanted more to diving than looking at fish. After becoming a SSI Technical Extended Range Instructor she left the passion of recreational diving behind and jumped in the deep end!

Helen is one of our technical instructors who is responsible for teaching and supervising a wide variety of technical diving courses and expeditions.

SSI Instructor

PADI Instructor

SSI Technical Instructor

BSAC Technical Instructor

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Contact: Helen@bigbluetech.net


Ian Jordan

Facilities Manager

Ian Jordan

Ian comes to Thailand from his former life as sales rep in for a major soft drink manufacturer in England. One of the junior members of the team Ian is working his way up through the ranks of the technical diving industry.

Ian is an technical diver who is responsible for the facilities of Big Blue Tech including the servicing and maintenance of our diving equipment, compressors and vehicles. In addition to these skills Mark also helps assist in the logistics of expeditions and planned excursions for technical diving courses and diving.

PADI Divemaster

TDI Gas Blender

TDI Extended Range Diver

TDI o2 Service Technician

TDI Compressor Operator

TDI Cylinder Visual Inspection

Apeks Service Technician

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Contact: Ian@bigbluetech.net


Soren Egeberg

Instructor

Soren Egeberg

Soren is our Danish and Swedish instructor who brings over 10 years of professional diving experience around the world to Big Blue Tech. Soren is an Avid technical diver and instructor who’s personal preference is in caves and wrecks.

Soren is also an experienced underwater photographer and videographer who’s work has been shown and published in many publications around the world.

PADI Specialty Instructor

SSI Specialty Instructor

Technical Diver

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Contact: Soren@bigbluetech.net


Dan Bolton

Instructor

Dan Bolton
Dan is one of our full time recreational instructors and part of the divemaster internship development program. He’s also a tech diver and is found frequently jumping off our tech boat to get some depth logged.

Dan is also a celebrity in his own right from his career as an actor in England, if you google his name along with the addition of “toaster” you will find him.

PADI Specialty Instructor

SSI Specialty Instructor

Technical Diver

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Contact: Dan@bigbluetech.net


Dam

Boat Captain

Dam
Capt. Dam is the captain of the M/V Nauti Buoy our tech boat is is very much part of the tech team. Dam has been a boat captain since the start of big blue in 1991. Being your typical boat captain he loves his whiskey, fishing and driving in the worst possible weather with a very reserved grin on his face.

Dam is a certified boat captain, a certified diver and recently completed his emergency oxygen administration course for dealing with Technical Diving.


Zaw

Boat Master

Zaw
Zaw is the Boat Master of the M/V Nauti Buoy our tech boat and is very much part of the tech team. Zaw has been working for big blue since 2003 and has become the most experienced and respected member of the boat crew.

Dam is a certified compressor operator, a certified diver and recently completed his emergency oxygen administration course for dealing with Technical Diving.