Skip to main content
  • X-Ray International 🇬🇧
  • Sportsdykkeren.dk 🇩🇰
  • XRay-Mag.SE 🇸🇪

Secondary menu - Advertising and subscriptions

  • Got stories? - Guidelines
  • Advertising
  • Subscribe to X-Ray Mag
Home
  • Magazine
  • News
      1. Latest news
      2. Press releases
      3. Breaking News
  • Travel
      1. Destinations
        1. Australia & New Zealand
        2. Continental Asia
          • Japan
          • China
          • South Korea
        3. Southeast Asia
          • Indonesia
            • Bali
            • Komodo
            • Lembeh
            • Maluku
            • Raja Ampat
            • Sulawesi
          • Malaysia
          • Papua New Guinea
          • Philippines
          • Thailand
          • Timor-Leste
        4. South Pacific & Oceania
          • Fiji
          • French Polynesia
          • Micronesia
            • Chuuk (Truk)
            • Marshall Islands
            • Yap
          • Palau
          • Samoa
          • Solomon Islands
          • Tonga
          • Vanuatu
        5. Indian Ocean
          • Madagascar
          • Maldives
          • Seychelles
        6. Red Sea
        7. Africa
          • Egypt
          • Malawi
          • Mozambique
          • Namibia
          • South Africa
          • Sudan
          • Tanzania
        8. Mediterranean & Adriatic
          • Croatia
          • Cyprus
          • France
          • Greece
          • Italy
          • Malta & Gozo
          • Portugal
          • Spain
          • Turkey
        9. Europe
          • Northern Europe
            • Denmark
            • England
            • Finland
            • Iceland
            • Ireland
            • Norway
            • Scotland
            • Sweden
          • Eastern Europe
            • Albania
            • Bosnia-Hercegovina
            • Croatia
            • Czech Republic
            • Hungary
            • Poland
            • Russia
              • Northwest Russia
              • Russian Far East
              • Siberia
          • Western Europe
            • Austria
            • France
            • Germany
            • Switzerland
          • Southern Europe
            • Cyprus
            • Greece
            • Italy
            • Malta & Gozo
            • Portugal
            • Spain
        10. Atlantic
          • Azores
          • Canary Islands
          • Falkland Islands
          • St Helena
        11. North America
          • Canada
          • Great Lakes
          • United States
            • East Coast
            • West coast
            • Alaska
            • Hawaii
            • US Virgin Islands
            • Guam
          • Mexico
        12. Caribbean & Central America
          • Bahamas
          • Belize
          • Cayman Islands
          • Bonaire
          • Cuba
          • Dominican Republic
          • Mexico
          • Columbia
          • Grenada
          • Costa Rica
          • Saba
          • Honduras
          • Turks & Caicos
          • US Virgin Islands
          • Nicaragua
        13. South America
          • Argentina
          • Brazil
          • Ecuador
        14. Polar Regions
          • Artic
          • Antarctica
      2. Promotions
      3. My Favorite Dive
  • Ecology
      1. Ocean Mysteries series by Ila France Porcher
      2. Sharks, Rays and Nudibranch stories by Andy Murch
      3. Sentience
      4. Conservation
      5. Coral Reefs
      6. Dolphins
      7. Fish
      8. Jellyfish
      9. Mantas & Stingrays
      10. Nudibranchs
      11. Octopus & Squid
      12. Sea Turtles
      13. Seals & Sea Lions
      14. Sharks
      15. Whales
  • Wrecks
      1. Vic Verlinden
      2. Ancient Wrecks
      3. Artificial Reefs
      4. Marine Archaeology
      5. Older Warships
      6. Steamships & Cargo
      7. Tall & Wooden Ships
      8. WWI Wrecks
      9. WWII Wrecks
  • Training & Tech
      1. Rebreathers
      2. Sidemount
      3. Deep Wrecks
      4. Cave Diving & Mines
      5. Ice Diving
      6. Diver Health & Safety
        1. Divers Alert Network - DAN
        2. Safety Culture
      7. Adaptive Diving
  • More
      1. Equipment
        1. BCDs, Wings & Sidemounts
        2. Dive Computers
        3. Dive Watches
        4. Drysuits & Undergarments
        5. Hoods, Gloves & Boots
        6. Lamps & Torches
        7. Masks, Fins & Snorkels
        8. Regulators
        9. Wetsuits & Rashguards
      2. Photo & Video
        1. Equipment
          • Cameras & Optics
          • Editing & Post-processing
          • Housings
          • Lighting
          • Useful Tools
        2. Tutorials
          • Techniques & Tips
            • Mike Bartick
            • Rico Besserdich
          • Composition
          • Editing & Post-processing
        3. News & Announcements
        4. Contributors' Picks
      3. Books & Media
        1. Works by our contributors
      4. Profiles & Interviews
        1. In Memoriam
      5. Lifestyle
        1. Portfolios & Ocean Arts
        2. Apres Dive & Apparel
        3. Editorials
      6. Contributors
        1. Pundits
          • Mike Ange
          • Gareth Lock
          • Michael Menduno
          • Mark Powell
          • Simon Pridmore
        2. Regular writers
          • Scott Bennett
          • Andrey Bizyukin
          • Larry Cohen & Olga Torrey
          • Pierre Constant
          • Brent Durand
          • Jennifer Idol
          • Scott Johnson
          • Steve Jones
          • Kate Jonker
          • Kelly LaClaire & Kate Holt
          • Matthew Meier
          • Brandi Mueller
          • Svetlana Murashkina
          • Barb Roy
          • Don Silcock
          • Claudia Weber-Gebert
          • Lawson Wood
        3. Columnists
          • Scott Bennett
          • Rico Besserdich
          • Rosemary 'Roz' E. Lunn
          • Ila France Porcher
  • ⚲ Search

Breadcrumb

  1. Home
  2. Mark Powell Becomes TDI / SDI ‘International Business’ Manager

Mark Powell Becomes TDI / SDI ‘International Business’ Manager

February 17, 2017 • Dive Industry News and Matters
Profile picture for user Rosemary E Lunn
By Rosemary E Lunn on
  • facebook-f
  • twitter
  • envelope
  • print
162

Brian Carney has just announced that Mark Powell – an award winning author, a TDI / SDI Instructor Trainer and a member of TDI / SDI Global Training Advisor Panel – is to join headquarters staff with immediate effect.

TDI, SDI,  Jordan Greene, Sean Harrison, Paul Montgomery, Mark Powell, Brian Carney, Rosemary E Lunn, Roz Lunn, XRay Mag, X-Ray Magazine, scuba diving news

TDI / SDI HQ Staff | Jordan Greene, Sean Harrison, Paul Montgomery, Mark Powell, Brian Carney (l to r)

United Kingdom
Dive Industry News
SDi/TDI
Mark Powell

Mark Powell qualified as a TDI / SDI Instructor in October 2000, and has been an ardent advocate of this training agency for almost two decades. In 2002 Mark Powell set up Dive-Tech (a dedicated technical diving training facility) and began working as a full time professional. A role that he has continued to this day.

“I am very excited to join the HQ team. The opportunity to help grow this agency is very exciting”, stated Powell.

The role of ‘International Business’ Manager will see Mark Powell racking up the air miles, as he brings his diplomatic business management acumen and sales training to TDI / SDI centres across the globe. (In his previous career Powell was a lecturer at the London School of Business & Management).

“I have been representing TDI / SDI in a number of UK industry relation roles for a couple of years now and I am delighted that this role is now expanding to other regions. I intend of course to keep on diving as much as possible. It is important to remain water-current, and I will be teaching, writing and speaking when not supporting the Regional Managers.”

Mark Powell will remain based in the UK, and will work alongside Paul Montgomery and Jordan Greene, assisting TDI / SDI Regional Offices, centres and members across the globe (that are based outside of the USA).

When Mark is not consulting or teaching diving courses at all levels (including CCR Advanced Mix Gas Instructor Trainer), he will continue to contribute to a number of diving magazines, and represent TDI / SDI on the British Diving Safety Group and the HSE Recreational Diving Industry Committee as well as being a member of the Diver Training and Breathing Apparatus committees at the British Standards Institute.

He is also in the middle of writing a follow up book to ‘Deco For Divers’. In 2008 Mark published this award winning manual at EUROTEK.08. Today ‘Deco For Divers’ is the standard text on theory and physiology of decompression. It is respected and is featured on the recommended reading list of several technical diving agencies.

Profile picture for user Rosemary E Lunn
Rosemary E Lunn
162
1
min read
A- A+
  • facebook-f
  • twitter
  • envelope
  • print

Other articles and news about Mark Powell

Mark Powell, International Training, ERDI, TDI, SDI, Brian Carney, Rosemary E Lunn, Roz Lunn, XRay Mag, X-Ray Magazine, scuba diving news

Mark Powell is now Director of Global Development

May 05, 2022
TDI, SDI,  Jordan Greene, Sean Harrison, Paul Montgomery, Mark Powell, Brian Carney, Rosemary E Lunn, Roz Lunn, XRay Mag, X-Ray Magazine, scuba diving news

Mark Powell Becomes TDI / SDI ‘International Business’ Manager

Feb 17, 2017

Other articles and news about United Kingdom

Geoff Yeadon

Geoff Yeadon, UK Cave Diving Pioneer, Dies

Mar 30, 2026
Armed Forces Bill 2026 section 47

UK Bill Could Extend Protection to Warship Wrecks

Mar 08, 2026
Recent studies have raised alarming concerns about the levels of toxic chemicals found in UK whales and dolphins.

Toxic Chemicals in UK Whales and Dolphins: A Growing Concern

Jan 03, 2024
Photogrammetry of the mast of the Kronprinz Wilhelm wreck in Scapa Flow by 3DVisLab at the University of Dundee

Scapa Flow Wrecks: Multibeam Sonar Survey & 3D Photogrammetry

Jul 18, 2022

UK HDS Conference Date Announced

May 06, 2022

Mark Powell is now Director of Global Development

May 05, 2022

Are you BSAC's new Diving & Training Advisor?

Apr 06, 2022

Covid-19 and Diving: Research Survey

Jan 30, 2022

Download a free dive planner

Jan 29, 2022

You got what it takes to stand for BSAC Council?

Dec 28, 2021
Rick Stanton was presented a Great Britain and Ireland Explorer Chapter Coin by Mark Wood on 21 November 2021

Rick Stanton presented with Explorers Club 'Chapter Coin'

Dec 02, 2021

UK 'Ghost Gear Coalition' formed to reduce diving team response time

Nov 18, 2021

A monument for all involved with mine warfare and diving to be officially dedicated

Nov 11, 2021

Brian Pitkin, reknowned u/w photographer, has died

Sep 01, 2021
cky Finn, APD, Inspiration Rebreather, Rosemary E Lunn, Roz Lunn, Brexit, scuba diving news

APD to open Netherlands warehouse

Jul 26, 2021
BSAC Head of Diving and Training, Mary Tetley, Jill Heinerth, Rosemary E Lunn, Roz Lunn, XRay Mag, X-Ray Magazine, scuba diving jobs, scuba diving news

BSAC recruits for new role - Head of Diving & Training!

Jun 16, 2021
Common dolphin (NOAA NMFS/Wikimedia Commons/Public Domain)

Share your views on Scotland's first cetacean conservation strategy

May 10, 2021
Eric-Grove_military-historian-Naval-Strategist_Rosemary-Lunn_Roz-Lunn_Jonathan-Woodcock_Alaric-Searle_David-McCormack_Malcolm-David_Christopher-Buckey_Australian-Naval-Institute_Michael-Codner_Drain-The-Oceans_John-Bevan_Dick-Vann_Greg-McFall_Simon-Mitchell_Neal-Pollock_Innes-McCartney_XRay-Mag_Kings_Laughton_Bilgepumps-podcast_Martin-Edmonds_Malcolm-Davis_Roger-Readwin_Mark-Grove

Eric Grove: Influential, Inspirational Maritime Historian, dies

May 04, 2021

DAN advocates a safe return to diving

Mar 26, 2021

The BDSG advocates divers prepare for a return to UK diving

Feb 19, 2021

Trending

David Attenborough 100 years

Sir David Attenborough Turns 100

Profiles & Interviews

World Oceans Day Celebrated Around the Globe

Ecology & Science
Cross-section of ocean

Where the Ocean Struggles to Breathe: The Silent Zones

Ecology & Science
US Coast Guard cutter Tampa

Wreck of USCG Cutter Tampa Found After 108 Years

Wrecks & Archaeology
A Swedish Navy diver on the wreck

Sensational Shipwreck in Kalmarsund Dates to 16th Century

Wrecks & Archaeology
Methane Hydrate

Frozen Fire Beneath the Sea

Ecology & Science
Busy cruise day at Port Everglades.

Port Everglades Dredging Plan Withdrawn After Reef Concerns

Ecology & Science
The fine planking on the Varberg wreck 2.

Six Historic Shipwrecks Found in Sweden

Wrecks & Archaeology

Latest updates from archives

Middelgrunden offshore wind farm (40 MW) observed in Øresund

Off-shore wind turbines also good for marine life

Ecology & Science
Dolphins decompress too

Dolphins decompress too

Ecology & Science

Our Own Backyard

Op'eds and commentaries
Moon jelly

Have jellyfish blooms been blown out of proportion?

Ecology & Science

Malta scuttles patrol boat, creates new artificial reef

Wrecks & Archaeology
Bermuda Triangle Anomaly

The Bermuda Triangle: The Ocean’s Black Hole

Ecology & Science
Shark or ray egg case

Divers Asked to Help Map Shark Nurseries

Ecology & Science
Global shark bites

Global Shark Bites Return to Average Levels

Ecology & Science

Latest updates

Emperor Divers introduce temporary booking changes to give travellers added peace of mind
9 May, 2026 - 00:29
David Attenborough 100 years
Sir David Attenborough Turns 100
8 May, 2026 - 09:29
World Oceans Day Celebrated Around the Globe
8 May, 2026 - 08:38
Future Divers Initiative Survey
The Future of Diving Is Being Written
7 May, 2026 - 11:05
More
Advertisement

Related content

Geoff Yeadon
Geoff Yeadon, UK Cave Diving Pioneer, Dies
30 Mar, 2026    
Armed Forces Bill 2026 section 47
UK Bill Could Extend Protection to Warship Wrecks
08 Mar, 2026    
BSAC Joins the Call for Clean Water
13 Sep, 2024    
Jane Morgan - SS Breda
BSAC Clubs Open to Qualified Divers for Thrilling UK Diving this Summer!
10 Jul, 2024    
Recent studies have raised alarming concerns about the levels of toxic chemicals found in UK whales and dolphins.
Toxic Chemicals in UK Whales and Dolphins: A Growing Concern
03 Jan, 2024    

Upcoming Events & Expos

5 Jun, 2026 ➢ 7 Jun, 2026

Malaysia International Dive Expo (MIDE) 2026

Malaysia International Trade and Exhibition Centre (MITEC), Kuala Lumpur

9 Sep, 2026 ➢ 12 Sep, 2026

ABOFA – Aqaba Blue Ocean: Future in Action

Aqaba, Jordan

23 Oct, 2026 ➢ 26 Oct, 2026

Diving Talks

Lisbon, Portugal

3 Nov, 2026 ➢ 6 Nov, 2026

DEMA 2026

New Orleans, Lousiana

5 Dec, 2026 ➢ 6 Dec, 2026

Dive-Expo

Antwerp Expo, Belgium

Stay Social

Don’t forget that you can connect with us through all major social media, by simply clicking on the corresponding logo below.

Reviews

Books & Media

Reefs of Time

In Reefs of Time, geoscientist and science educator Lisa S. Gardiner offers a compelling and accessible exploration of how fossil coral reefs can inform our understanding of the threats facing reefs today. 

Book cover:  Reefs of Time
Review
Books & Media

Yes, Fish Feel Pain

A thought-provoking examination of fish sentience, behaviour and the growing scientific debate surrounding pain perception in aquatic animals.

Yes, Fish Feel Pain
Works by Our Contributors
Review
Books
Ila France Porcher
Books & Media

Scuba Diving Operational Risk Management

An SAS approach to principles, techniques and application in recreational and technical diving.

Book cover
Review
Books
Books & Media

Marine Life of the North Sea and English Channel

Lawson Wood’s Marine Life of the North Sea and English Channel is an extensive guide dedicated to the exploration and understanding of the diverse marine ecosystems found between the British Isles and the coasts of northern France, Belgium, the Netherlands, Denmark, Norway and southern Sweden.

Cover  Marine LIfe of the North Sea and English Channel
Works by Our Contributors
Review
Books
Lawson Wood
Advertisement
Advertisement

Other articles and news about Mark Powell

Mark Powell, International Training, ERDI, TDI, SDI, Brian Carney, Rosemary E Lunn, Roz Lunn, XRay Mag, X-Ray Magazine, scuba diving news

Mark Powell is now Director of Global Development

May 05, 2022
TDI, SDI,  Jordan Greene, Sean Harrison, Paul Montgomery, Mark Powell, Brian Carney, Rosemary E Lunn, Roz Lunn, XRay Mag, X-Ray Magazine, scuba diving news

Mark Powell Becomes TDI / SDI ‘International Business’ Manager

Feb 17, 2017

Books & Media by our contributors

The Airplane Graveyard book cover

The Airplane Graveyard, by Brandi Mueller

Aug 15, 2018 Brandi Mueller , Alan Axelrod
Cover - The Diver Who Fell from the Sky

The Diver Who Fell from the Sky

Jan 06, 2022 Simon Pridmore
True Nature of Sharks book cover

The True Nature of Sharks

Apr 11, 2017 Ila France Porcher
An American Immersion book cover

An American Immersion

May 03, 2016 Jennifer Idol

Sponsored Content | Paid Posts

Top 5 Criteria When Choosing a Cheap Essay Writing Service

Sponsor : EssayZoo

Using Augmented Reality to Teach New Divers in the Classroom

Sponsor : Sarah Daren

California Dreamin': Perfect Hidden Gems for a Weekend Getaway 

Sponsor : Nadine Westwood

How to Prepare for Your First Diving Trip in Bali

Sponsor : Mark Banks

What Do Marine Biology Students Study?

Sponsor : Rob Talley

Maximizing Social Impact Through Effective Financial Accounting in Nonprofits

Sponsor : Sarah Daren

Building Wellness and Resilience in Women Divers

Sponsor : Daniel Washington

Practices to Help Companies Reduce Their Carbon Footprint

Sponsor : Sarah Daren
Home
International Dive Magazine

About X-Ray Mag

AquaScope Media logo

Compiled by an international network of top dive editors and world-class underwater photographers, X-RAY MAG is the planet's only truly global premier dive lifestyle magazine. Subscription and downloads are free. Published since 2003.

Image
DEMA Member

Published by:

AquaScope Media ApS - Copenhagen - © 2026

A closer look below the surface.

Advertising

  • General info / Distribution
  • Rate cards
    • Media kit - $ (USD)
    • Media kit - € (EUR)
    • Media kit - £ (GBP)
  • Ad Sizes and Formats
    • Magazine Ad Copy sizes
    • Banner ad sizes
  • General trading terms

Privacy & GDPR

  • Privacy and Cookie Policy

Subscriptions

  • US Newsletter
  • Canadian Newsletter
  • European Newsletter
  • UK Newsletter
  • Asia-Pacific Newslettre
  • Other / Global
  • 😪 Unsubscribe

Brand Assets / Logos

  • Banner ads
  • Logos
  • SoMe Collaterals

Contact

  • Contact us
  • About us

Brugerkontomenu

  • Log in
Clear keys input element