Petrofac1

Samsung Engineering2

Saipem3

NPCC4

Technip5

Mott MacDonald6

Hyundai Engineering & Construction7

Technicas Reunidas8

Foster Wheeler9

Jacobs Engineering10

Marie Technimont11

McDermott International12

GS Engineering & Construction13

Kellogg Brown & Root14

SNC Lavalin15

Topaz Energy & Marine16

Al Jaber Energy Services17

Kentz18

Lamprell19

Wood Group PSN20

Drydocks World21

MIS22

Bechtel23

SK Engineering24

Petrojet25

JGC26

Daelim27

Doosan Heavy Industries28

Black Cat Engineering & Construction29

Global Industries30