A

A Lamb Associates

ABS Commercial Solutions

Adler & Allan

Advance Welding Ltd

Advanced Valve Technologies

Airport Utilities Limited

Amanzi

Andrew Hughes Utility Services Ltd

Anglian Water Services Ltd

Ant Hire Solutions

Aqua Spira Limited

Arcadis

ATMOS International Ltd

ATP

AVK

B

BakerCorp UK Ltd

BAM Civil

Barhale Construction Plc

BHGE Process and Pipeline Services (PPS)

Black and Veatch Ltd

Boskalis Westminster

Bristol Water

British Pipeline Agency Ltd (BPA)

Bruton Knowles

C

Cadent Gas Ltd

Cappagh Group

Carter Jonas

Cascade Clamps UK Limited

CJC Utilities Ltd

Clancy Docwra Ltd

CLH (The Oil and Pipelines Agency)

CMU Infrastructure Ltd (CM Utilites Ltd)

Complete Asset Life Management Group (CALM)

ControlPoint

Costain

Crane

Cranefield Uni

CSD Group

Cubis Industries

Currie & Brown

D

Dalcour Maclaren

Dargavel Engineering

Darke Engineering Ltd

Deane Public Works Limited

Determanagement Ltd

Develop Training Ltd

DNV GL

E

Ebero Pipe Systems

Entegra LLP

Enzen Global Ltd

F

Fabricon

Farrans Construction

Fastflow Energy

Firmus Energy

Fisher German Chartered Surveyors

Fluor Ltd

Forefront Group (FERNS)

Frazer

FT Pipeline Systems

Future Pipe Ltd

G

G&V Gallagher

Gas Networks Ireland (Bord Gais Eirann)

Glanville Environmental

GMC Group

GPS PE Pipe Systems

Groundshore Ltd

H

Harper Adams university

Headlight AI

HVL Solutions Ltd

I

I S Consulting Limited

Innovex Limited

IPS

J

Jacobs Engineering UK Ltd

JMC (Northwest) Ltd

JN Civils

K

Kilkern Ltd

L

LMR Drilling UK Ltd

Long O'Donnell Associates

LSU Utility Solutions Ltd

M

M J Rees & Co Ltd

MACE Ltd

Map Pipeline Services

McAndrew Utilities

McCrae Training Ltd

McElroy Manufacturing Inc

McGrath Group Ltd

Morrison Utility Services

Morrow Contracts Ltd

Mott MacDonald

MW Polymers

N

National Grid

Northern Ireland Water

Northumbrian Water Ltd

O

O Connor Utilities

P

P Flannery Plant Hire (Oval) Ltd

Parsons Consulting Engineers Ltd

Penspen

Peter McCormack & Sons Ltd

Phoenix Natural Gas

Picote Solutions

PIPA Ltd

Pipe Source UK Ltd

Pipeline Data Solutions

Pipeline Induction Heat

Pipeline Protection Limited

Pipeline Systems Engineering

Pipeline Utilities Ltd

Promec

Q

QEM Solutions

R

R2M Limited

RAM Safety Solutions UK Ltd

Rayden Engineering Ltd

Reach Consult Ltd

Roadbridge

Rosen (formerly MACAW)

Royal HaskoningDHV

RPS 

RSK Group Ltd

S

Saint-Gobain PAM UK Limited

Saith Ltd

Sapphire Utility

Schur Ltd

Serimax

Severn Trent Water

SGN

ShareRidge Ltd

Skewb Ltd

SNM Pipelines Ltd

Solaris (Valve & Pipeline Services)

Southern Water

STATS Group

Steve Vick International

Sunbelt Rental Ltd

Synthotech Limited

T

T Sumner Smith Ltd

TATA Steel

Terrafirma Pipelines Ltd

The Water Services Group

Torque Solutions Ltd

Tracto Technik UK

Trans Asia Energy Services (UK) Ltd

twoH

U

ULC Robotics

Unionpipe Ltd

Uniper (E.ON UK Plc)

United Utilities

Utility Innovations Services

UTS Engineering Ltd

V

Van Oord

VolkerTrenchless Solutions

W

Ward & Burke Construction Ltd

Wardell Armstrong

Warren Composites International

Wessex Water Construction Services

Whitford Ltd

Willemse Welding

WK Engineering Services Ltd

Wolseley UK Ltd

Worley Europe Ltd

WSP

X Y Z

Yorkshire Water Services