Below is a list of clients served by IDESS Maritime Centre (Subic) Inc.
- Aboitiz Jebsen Bulk Transport Corp.
- Ace Navigation Co. Inc.
- Agile Maritime Resources, Inc.
- Agip Oil Co Ltd
- AJ Shipmanagement GMBH
- AMEC Services Ltd.
- Allseas Marine Contractors SA
- Anglo-Eastern Crew Management Phils., Inc.
- Anscor Swire Ship Management, Corp.
- AP Mollar
- Aquanaut Shipmanagement Ltd.
- Araventures
- Asia International Builders Corp.
- Atlantic Group and Pacific Co. of Manila Inc.
- Atlantic Gulf and Pacific Co.
- Atlas Copco Phils. Inc.
- Atwood Oceanics Pacific Ltd.
- Bergesen Worldwide Gas ASA
- BJ Service International Inc.
- Blue Star Crewing Services BV
- Boskalis International
- BP Shipping Ltd.
- British Gurkha Overseas Services Ltd.
- Brostrom Ship Management AB
- Bumiputra Gulf Co. Inc.
- BW Shipping Philippines Inc.
- Canadian Helicopters Philippines Int'l., Inc.
- Cape East Philippines, Inc.
- Career Phils., Shipmanagement Inc.
- CF Sharp Crew Management, Inc.
- ChevronTexaco Shipping Co., LLC.
- Chittick Fire & Security Corp
- Clough AMEC Joint Venture
- C-Mar Services UK Ltd.
- Columbia Shipmanagement, Ltd.
- Compass Group Phils., Inc.
- Conocophillips
- ConSafe Offshore AB Publ.
- Consolidated Marine Management
- CR Industrial Services Co Ltd.
- Crew Asia Inc.
- CSA Oilfield Supplies Co., Inc.
- DESCO Inc.
- Devco Phils Inc.
- Dolphin Ship Management Inc.
- DOME X'PATS
- Donso Tank Rederi
- Dorchester Maritime Ltd.
- Drilling Contractors Int'l. & Supply Co., Inc.
- Dynacom Tankers Management Ltd.
- Dynagas Ltd.
- EGS Asia Inc.
- Emerson Process Mgt. Asia Pacific Private Ltd.
- ENSCO Gerudi (M) SDN BHD
- ENSCO Oceanics International Company
- Epic Maritime Personnel Inc.
- ESS Support Services Worldwide
- Eurest Singapore
- Eurest-Shrm Far East Pte Ltd.
- Executive Ship Management Pte. Ltd.
- Expedo Ship Management Co. Ltd.
- FFC Equipment Parts Supply Inc.
- Fil Pride Shipping Co Inc
- Filconfab Inc.
- Fisher-Rosemount Systems Inc.
- Fluor Daniel-Amec Philippines
- Fratelli Cosulich S.P.A. Italy
- GAC Shipping & Cargo Systems Phil Inc.
- GE Phils Bently Nevada Business
- GE Power Systems
- Gemmo Impianti Libya
- Global Ocean Development Inc
- Global Turbine Services Inc.
- Global Petroprojects Services AG
- Great White Fleet
- Halfdan Ditlev Simonsen & Co AS
- Hanseatic Shipping Co Ltd
- Heerema Marine Contractors Nederland BV
- Herning Shipping AS
- Hoegh Fleet Services A/S
- Hoegh Fleet Services Philippines, Inc.
- ICSM Pte. Ltd.
- Inspection Consultants Int'l. Phils. Inc.
- Intermodal Shipping, Inc.
- International Refinery Services Phils. Inc.
- International Skills Development, Inc.
- International SOS Pte Ltd.
- International Transport Contractors BV
- International Transport Corp.
- Intertek Caleb Brett Philippines
- Invensys Korea Ltd.
- Jo Tankers
- Jo Tankers Phils., Inc.
- KGJS A/S
- KGJS Fleet Management Manila, Inc.
- Klaveness Maritime Agency, Inc.
- Klaveness Maritime Logistics AS
- Laurin Maritime AB
- Logistic & Marketing Phils Inc.
- Maersk - Filipinas Crewing Inc.
- Magsaysay Maritime Corp.
- Manila International Recruitment Services, Inc.
- Manpower Resources of Asia Inc.
- Mantinia Shipping Co. SA
- MCS Dynamics
- Mediterranean Oil Services GMBH
- Michaelmar Phils Inc.
- Microbase Inc.
- Mitsubishi Heavy Industries Phils Inc.
- MMS Co Ltd.
- MMS Phils. Maritime Services Inc.
- MMT Malampaya
- MODEC Elang
- Monsoon Maritime Services (Phils.) Inc.
- More Maritime Agencies Inc.
- MRM Phils Inc.
- MRM Holdings SDN BHD
- Multinational Maritime Inc.
- Multiwave Geophysical Company
- National Maritime Polytechnic
- Net Ship Management Inc.
- Newton Electrical Equipment, Co.
- Norteam Shipping Services Inc.
- Northern Marine Management
- Norwegian NCL America & Orient Cruise Lines
- NUTEC Rotterdam BV
- NYK-Fil Ship Management, Inc.
- Orient Ship Management Phils, Inc.
- OSA Industries Phils Inc.
- OSG Ship Management Ltd.
- OSG Ship Management Manila Incorporated
- OSM Maritime Services Norway
- P & O North Sea Ferries
- Pacbasin Ship Management Inc.
- Pacific Ocean Manning Inc.
- Pacific Seamen Services Inc.
- Papapest Pest Control & General Services
- Pearl Grace Shipmanagement Inc.
- Pertamina Maritime Education Centre
- Phil World Shipping Services Corp
- Philippine Electric Corporation (PHILEC)
- Philippine Hammonia Shipagency, Inc.
- Philippine Transmarine Carriers, Inc.
- PNOC Energy Development Corporation
- Polarmarine Inc.
- Polycrest AS
- Pride International
- Princess Cruises Lines Ltd.
- Pro Safe Production Pte Ltd.
- Pronav Ship Management
- Redisol Inc.
- Rotodyne Phils Inc.
- Royal Caribbean Cruises Ltd.
- SA Louis Dreyfus & CIE
- Sabah Shell Petroleum Co. Ltd.
- Safe Caledonia
- Safe Seas Shipping Agency Co Inc.
- Saudi Arabian Oil Company
- SBM Production Contractors
- Scan Marine Inc.
- Scanmar Maritime Services, Inc.
- Schneider Electric Philippines
- Scientific Drilling International
- Sealanes Marine Services, Inc.
- Seaspan Crew Management
- Seatrade Groningen BV
- Sedco Forex International, Inc.
- Senator Crewing Manila Inc.
- Shaw Pipeline Services (S) Pte. Ltd.
- Shell Philippines Exploration BV
- Single Buoy Mooring Inc.
- SKF Philippines Inc.
- Smit Singapore Pte Ltd.
- Songa Offshore
- Solar Turbines International Co.
- Stena Line B.V.
- Stolt-Nielsen Transportation Group, Inc.
- Supply Oilfield Services, Inc.
- Swedish Crewing Management Inc
- Swire Pacific Shipmanagement Ltd.
- Tai Chong Chang Steamship Co. (Singapore) Pte. Ltd.
- TCC Manila Liaison Office
- Teekay Shipping Philippines, Inc.
- The China Navigation Co. Ltd.
- The Philodrill Corporation
- Thome Shipmanagement
- Tide Water Crewing Ltd.
- Torvald Klaveness & Co. A/S
- TOTAL
- Transocean Deep Water Pathfinder
- Transocean Drilling Ltd.
- Transocean Eastern Pte. Ltd.
- Tri-Amp Corporation
- Trigon Management & Industrial Corp.
- TSM Shipping Phils Inc.
- TUV SUD Phils Inc.
- Unibros Shipping Inc.
- Unie Van Redding - En Sleepdienst NV
- United Arab Shipping Co.
- Van Oord Ship Management BV
- Vela International Marine Ltd.
- Veritas Viking II
- Veritas DGC Pty Ltd Singapore
- V-Ships Norway A/S
- Wallem Maritime Services,Inc.
- Wallem Shipmanagement Ltd.
- Wallenius Marine AB
- WesternGeco LLC
- Westfal-Larsen Management AS (Far East)
- Yokogawa Phils. Inc.
- Zamil Operations and Maintenance Co. Ltd.