Depth:          36000 ft (11000 m)
Capacity:     1
Operator:     Woods Hole
                        Oceanographic
                        Institution (WHOI)
Country:       USA

Depth:          22960 ft (7000 m)
Capacity:     3
Operator:    China National
                        Deep Sea Center
Country:       China

Depth:          21320 ft (6500 m)
Capacity:     3
Operator:    Japan Agency for
                        Marine-Earth
                        Science & Tech 
                        (JAMSTEC)
Country:       Japan

Depth:          19680 ft (6000 m)
Capacity:      3
Operator:     PP Shirshov Inst.
                         of Oceanology,
                         RAS
Country:       Russia

Depth:          19680 ft (6000 m)
Capacity:      3
Operator:     PP Shirshov Inst.
                         of Oceanology,
                         RAS
Country:       Russia

Depth:          19680 ft (6000 m)
Capacity:      3
Operator:     IFREMER
Country:       France

Depth:          14596 ft (4450 m)
Capacity:      3
Operator:     WHOI
Country:       USA

Depth:          6500 ft (2000 m)
Capacity:     3
Operator:    Hawaii Undersea
                        Research Lab
                       (HURL)
Country:       USA

Depth:          6500 ft (2000 m)
Capacity:     3
Operator:    Hawaii Undersea
                        Research Lab 
                       (HURL)
Country:       USA

Depth:          3936 ft (1200 m)
Capacity:     3
Operator:    Ictineu Submarins
                        S.A.
Country:       France

Depth:          3,280 ft (1000 m)
Capacity:     1
Operator:    CANDIVE Ltd.
Country:      Canada

Depth:          3280 ft (1000 m)
Capacity:     2
Operator:     WHOI, M/V Alucia
Country:       USA

Depth:          3000 ft (1000 m)
Capacity:     1
Operator:     Virgin Oceanic
Country:       USA

Depth:          3,280 ft (1000 m)   
Capacity:     1
Operator:     RF Navy
Country:       Russia

Depth:          3,280 ft (1000 m)   
Capacity:     2
Operator:     RF Navy
Country:       Russia

Depth:          3280 ft (1000 m)
Capacity:     3
Operator:    Rebikoff Niggeler
                        Foundation
Country:       Portugal

Depth:          3300 ft (1000 m)
Capacity:     3
Operator:    WHOI, M/V Alucia
Country:       USA

Depth:            2660 ft (810 m)
Capacity:       3
Operator:      Stanley Submarines
Country:         Honduras

Depth:            2300 ft (700 m)
Capacity:       1
Operator:       Oceaneering Inc.
Country:         USA

Depth:            2300 ft (700 m)
Capacity:       1
Operator:       Oceaneering Inc.
Country:         USA

Depth:          2000 ft (610 m)
Capacity:     2
Operator:    WHOI, M/V Alucia
Country:       USA

Depth:          2,000 ft (610 m)
Capacity:     2
Operator:    Nuytco Research Ltd.
Country:      Canada

Depth:          2,000 ft (610 m)
Capacity:     2
Operator:    COMEX SA
Country:      France

Depth:          2,000 ft (610 m)
Capacity:     1
Operator:     Nuytco Research Ltd.
Country:       Canada

Depth:          2,000 ft (610 m)
Capacity:     2
Operator:     Nuytco Research Ltd.
Country:       Canada

Depth:           2,000 ft (610 m)
Capacity:      2
Operator:     Hellenic Center for
                         Marine Research
Country:        Greece

Depth:          2000 ft (600 m)
Capacity:     16
Operator:     Phoenix International
Country:       USA

Depth:          1600 ft (500 m)
Capacity:     5
Operator:     OceanGate Inc.
Country:       USA

Depth:          1500 ft (457 m)
Capacity:     2
Operator:     Sub Aviators
Country:       USA

Depth:          1500 ft (457 m)
Capacity:     3
Operator:     Undersea Hunter
                         Group
Country:       Costa Rica

Depth:          1312 ft (400 m)
Capacity:     2
Operator:     Helmholtz - GEOMAR
Country:       Germany

Depth:          1250 ft (380 m)
Capacity:     2
Operator:     Yacht Management
Country:       Monaco

Depth:          1200 ft (365 m)
Capacity:     1
Operator:     Phoenix International
Country:       USA

Depth:          1200 ft (365 m)
Capacity:     8
Operator:     Private Yacht
Country:       USA

Depth:          1100 ft (330 m)
Capacity:     2
Operator:     SUB-AQUA Enterprises
                         Pty Ltd
Country:       Australia

Depth:           1000 ft (328 m)
Capacity:       5
Operator:       Curacao Sea Aquarium
Country:         Curacao

Depth:          1000 ft (305 m)
Capacity:     2
Operator:     Brownie's Global
                         Logistics
Country:       USA

Depth:          1000 ft (305 m) 
Capacity:     2
Operator:     Brownie's Global
                         Logistics
Country:       USA

Depth:          1,000 ft (305 m)
Capacity:     1
Operator:     Nuytco Research Ltd.
Country:       Canada

Depth:          1000 ft (305 m)
Capacity:     2
Operator:     Submergence Group
Country:       USA

Depth:          1000 ft (300 m)
Capacity:     3
Operator:     CANDIVE Ltd.
Country:       Canada

Depth:          984 ft (300 m)
Capacity:     5
Operator:    U-Boat Worx BV
Country:      The Netherlands

Depth:          1000 ft (300 m)
Capacity:     2
Operator:    Deepflight
Country:      USA

Depth:          1000 ft (305 m)
Capacity:     5
Operator:    OceanGate Inc.
Country:      USA

Depth:          820 ft (250 m)
Capacity:     3
Operator:    Institute Of
                        Oceanology, B.A.S.
Country:       Bulgaria

Depth:          820 ft (250 m)
Capacity:     3
Operator:    Eurosub
Country:      The Netherlands