OMR 2027 will be held as a part of St. Petersburg International Gas Forum

• Administration of Saint-Petersburg
• Administration of the Nenets Autonomous Okrug 
• Afrikantov Experimental Design Bureau for Mechanical Engineering, JSC
• Afrikantov OKBM, JSC
• AKROS
• Akvaplan-Niva
• ALIAXIS UTILITIES & INDUSTRY
• AMTEL-SZYAZ JSC
• Arctic and Antarctic Research Institute
• Arctic public academy od sciences
• ASE ENGINEERING COMPANY, JSC
• Association for search and rescue technology development
• Atomflot, FSUE
• AVA Hydrosystems
• BALTIC CONTAINER
• Canusa-CPS
• Caspian hydrotechnical company"
• CLUSTER OF SHIPBUILDING AND MARINE EQUIPMENT PRODUCTION IN ARKHANGELSK REGION, ASSOCIATION 
• Concern Morinformsystem-Agat, JSC
• Corporation "Axion", LLC
• DMT Marine Equipment 
• Elektropribor, Concern Central Scientific and Reseach Institute 
• Engineering Center ART
• FAI Russian Maritime Register of Shipping
• GAZPROM 
• Gazprom dobycha Nadym LLC
• Gazprom dobycha shelf Yuzhno-Sahalinsk, LLC
• Gazprom flot LLC
• Gazprom flot LLC
• Gazprom gazobezopasnost, LLC
• Gazprom geologorazvedka LLC
• Gazprom georesurs LLC
• Gazprom Neft PJSC
• Gazprom neft shelf LLC
• Gazprom proektirovanie, LLC
• Gazprom StroyTEK Salavat, JSC
• Gazpromneft-Sakhalin LLC
• GECON
• General Electric
• Government of Murmask region
• Government of Murmask region
• Grundfos
• IKM Ocean Design AS
• Industri Energy
• Institute of Environmental Survey, Planning & Assessment JSC
• JAMA-ENGINEERING
• Kadmatik
• KELDYSH RESEARCH CENTRE, SSC
• Korall, CDB, JSC
• Krylov State Research Centre, FSUE
• KSEP CO., LTD.
• KURS, CSRI, JSC
• Kvaerner
• Lazurit Central Design Bureau JSC
• Leningrad regional chamber of Commerce and industry
• LG Avtomatika
• Lukoil
• Lukoil-Kaliningradmorneft LLC
• MAGE, JSC
• Management of advanced technologies
• Ministry of Telecom and Mass Communications of the Russian Federation
• MSC
• MSCO
• Multiconsult
• Murmansk State Technical University
• Nenets telecommunication company, NAO SUE
• NEOTECH MARINE, Engineering company, Joint-Stock Company 
• NEVSKY SHIPBUILDING-SHIPREPAIR PLANT
• NIKIET JSC
• Nord Development AS
• NRC "Kurchatov Institute" - CRISM "Prometey"
• Odfjell Drilling
• Offshore & Trawl Supply
• Oglaend System
• Omskiy Nauchno Issledovatelskiy Institut Priborostroeniya, JSC
• Permsnabsbyt, PPMTS
• Perpetuum-Mobile LLC
• Pigment Holding Company
• Proektelectrotekhnika
• Proletarsky zavod, JSC
• PROMIZOL LLC
• Radiant-ER
• Real Edwans
• RNG-Engeniring
• ROCKWOOL
• Rosgeologiya, JSC
• Rosneft
• ROTOR PA
• RPA UNICHIMTEK JSC
• Rubin, Central Design Bureau for Marine Engineering
• Ruspolymet
• Russian oilfield services laser technologies, LLC
• SAMWON MACHINERY CO., LTD
• Schneider Electric
• Scientific and Engineering Centre for Nuclear and Radiation Safety
• Seojin Precision Co., Ltd
• Sevcable
• Sevmash, PO, JSC
• Sevmash, PO, JSC
• SevTransProduct, LTd
• Shawcor
• Shipbuilding & Shiprepair Technology Center, JSC
• Shipbuilding ship Repair
• Sim Tech LLC
• SORMEC S.R.L.
• St. Petersburg Mining University
• Standart - factory of hydraylic joints
• State Marine Technical University
• Subsea Smart Solutions
• Sulzer Chemtech
• SUPERTEL JSC
• SVH-Freight, JSC
• SYNTEZ-PROJECT, LLC
• SYNTHESIS-PROJECT, LLC
• TAKRAF GmbH
• TechnipFMC
• Tekhnomar, OOO
• The Federal research-and-production center "Titan-Barricades", JSC
• The Ministry of Economic Development Russia
• The Ministry of Transport of the Russian Federation
• TRANSAS
• UHSEP LLC
• UltraMarine M, LLC
• Uptime International
• Veza
• Vissim AS
• VNIIOkeangeologia
• VostokCoal, AMC, LLC
• VSEGEI
• Vyborg Shipyard PJSC 
• Wintershall Holding GmbH
• Wintershall Norge AS
• Wintershall Russland
• WWF России 
• YOUNGNAM METAL CO., LTD.
• Zvezda, Shipbuilding complex 
• Zvyozdochka, Shiprepairing center, JSC