1 |
Colt International LIMITED
|
England
|
Petersfield
|
Colt House Ridgeway Office Park
|
Bedford Road
|
Hampshire
|
GU32 3QF
|
coltinfo.co.uk
|
Plumbing/heating/air cond contractor
|
1931
|
$46,000,000,000
|
0
|
Corporation
|
389
|
01222993
|
248699993
|
2 |
Scotia Gas Networks LIMITED
|
England
|
Horley
|
St. Lawrence House
|
Station Approach
|
Surrey
|
RH6 9HJ
|
N/A
|
Plumbing/heating/air cond contractor
|
2003
|
$1,548,453,587
|
4068
|
Corporation
|
31
|
04958135
|
439941613
|
3 |
Northern Gas Networks LIMITED
|
England
|
Leeds
|
1100 Cetury Way
|
Thorpe Park Business Centre, Colton
|
West Yorkshire
|
LS15 8TU
|
northerngas.co.uk
|
Plumbing/heating/air cond contractor
|
2004
|
$606,257,134
|
0
|
Corporation
|
6
|
05167070
|
441723533
|
4 |
The Bss Group LIMITED
|
England
|
Northampton
|
Lodge Way House Lodge Way
|
Harlestone Road
|
Northamptonshire
|
NN5 7UG
|
bssindustrial.co.uk
|
Plumbing/heating/air cond contractor
|
1899
|
$513,853,116
|
0
|
Corporation
|
1245
|
00060987
|
248928786
|
5 |
Scotland Gas Networks PLC
|
England
|
Newbridge
|
Axis House
|
5 Lonehead Drive
|
Eh28 8tg
|
EH28 8TG
|
sgn.co.uk
|
Plumbing/heating/air cond contractor
|
2004
|
$499,927,584
|
416
|
Corporation
|
31
|
SC264065
|
440774690
|
6 |
Cbre Gws LIMITED
|
England
|
London
|
61 Southwark Street
|
N/A
|
London
|
SE1 0HL
|
jci.com
|
Plumbing/heating/air cond contractor
|
1960
|
$447,410,993
|
0
|
Corporation
|
2100
|
00661449
|
248548070
|
7 |
British Gas New Heating LIMITED
|
England
|
Windsor
|
Millstream
|
Maidenhead Road
|
Berkshire
|
SL4 5GD
|
N/A
|
Plumbing/heating/air cond contractor
|
2008
|
$439,307,091
|
0
|
Corporation
|
245
|
06723244
|
247882822
|
8 |
Homeserve Membership LIMITED
|
England
|
Walsall
|
Cable Drive
|
N/A
|
West Midlands
|
WS2 7BN
|
homeserve.com
|
Plumbing/heating/air cond contractor
|
1992
|
$411,235,179
|
0
|
Corporation
|
171
|
02770612
|
276300008
|
9 |
Vaillant Industrial UK LIMITED
|
England
|
Belper
|
Nottingham Road
|
N/A
|
Derbyshire
|
DE56 1JT
|
vaillant.co.uk
|
Plumbing/heating/air cond contractor
|
1972
|
$237,014,148
|
483
|
Corporation
|
179
|
01064184
|
248718974
|
10 |
United Living Group Holdings LIMITED
|
England
|
Washington
|
12 Parsons Road
|
Parsons Industrial Estate
|
Tyne and Wear
|
NE37 1HB
|
N/A
|
Plumbing/heating/air cond contractor
|
2004
|
$231,130,760
|
660
|
Corporation
|
39
|
05114630
|
441277171
|
11 |
Conex Universal LIMITED
|
England
|
Kingswinford
|
Building 95
|
Second Avenue Pensnett Trading Estate, Pensnett Trading Estate
|
West Midlands
|
DY6 7FT
|
conexbanninger.com
|
Plumbing/heating/air cond contractor
|
2011
|
$200,226,936
|
395
|
Corporation
|
12
|
07563347
|
248664187
|
12 |
Stelrad LIMITED
|
England
|
Newcastle-upon-tyne
|
69-75 Side
|
N/A
|
Tyne and Wear
|
NE1 3JE
|
stelrad.com
|
Plumbing/heating/air cond contractor
|
2000
|
$138,442,961
|
431
|
Corporation
|
20
|
02263368
|
286679004
|
13 |
Liberty Group Investments LIMITED
|
England
|
Liverpool
|
Garden Works
|
Charleywood Road, Knowsley Industrial Park
|
Merseyside
|
L33 7SG
|
liberty-group.co.uk
|
Plumbing/heating/air cond contractor
|
1969
|
$130,451,466
|
1135
|
Corporation
|
10
|
00968396
|
248086634
|
14 |
Toshiba Carrier UK LTD.
|
England
|
Plymouth
|
Porsham Close Belliver Industrial Estate
|
Roborough
|
Devon
|
PL6 7DB
|
toshiba-aircon.co.uk
|
Plumbing/heating/air cond contractor
|
1999
|
$129,396,169
|
302
|
Corporation
|
1210
|
03723803
|
254803324
|
15 |
Purmo Group (UK) LTD
|
England
|
Gateshead
|
Eastern Avenue Team Valley Trading Estate
|
Team Valley Trading Estate
|
Tyne and Wear
|
NE11 0PG
|
rettigicc.com
|
Plumbing/heating/air cond contractor
|
1960
|
$109,026,436
|
0
|
Corporation
|
11
|
00653648
|
248474832
|
16 |
British Gas Social Housing LIMITED
|
England
|
Windsor
|
Millstream
|
Maidenhead Road
|
Berkshire
|
SL4 5GD
|
phjones.co.uk
|
Plumbing/heating/air cond contractor
|
1963
|
$106,018,926
|
0
|
Corporation
|
245
|
01026007
|
454409372
|
17 |
Quooker UK LTD
|
England
|
Manchester
|
Beaumont Building
|
Great Ducie Street
|
Manchester
|
M3 1PQ
|
N/A
|
Plumbing/heating/air cond contractor
|
2004
|
$87,236,220
|
170
|
Corporation
|
20
|
05287043
|
426368093
|
18 |
Bgis Global Integrated Solutions LIMITED
|
England
|
London
|
7th Floor Suite 1
|
50 Broadway
|
London
|
SW1H 0BL
|
N/A
|
Plumbing/heating/air cond contractor
|
1989
|
$86,382,409
|
235
|
Corporation
|
3
|
02379290
|
326087066
|
19 |
Liberty Gas Group LIMITED
|
England
|
Liverpool
|
Garden Works, Charley Wood Road
|
Knowsley Industrial Estate
|
Merseyside
|
L33 7SG
|
N/A
|
Plumbing/heating/air cond contractor
|
2001
|
$81,765,663
|
678
|
Corporation
|
10
|
04242416
|
249900863
|
20 |
Sutton And East Surrey Water Services LIMITED
|
England
|
Redhill
|
66-74 London Road
|
N/A
|
Surrey
|
RH1 1LJ
|
N/A
|
Plumbing/heating/air cond contractor
|
1989
|
$70,349,898
|
325
|
Corporation
|
18
|
02446416
|
326463312
|
21 |
Renelec LIMITED
|
England
|
Devizes
|
Brownston House
|
New Park Street
|
Wiltshire
|
SN10 1DS
|
renelec.co.uk
|
Plumbing/heating/air cond contractor
|
1972
|
$69,370,056
|
238
|
Corporation
|
10
|
01053189
|
248668946
|
22 |
Aaron Services LIMITED
|
England
|
Dartford
|
Crossways Point 15
|
Victory Way, Crossways Business Park
|
Kent
|
DA2 6DT
|
sureservegroup.co.uk
|
Plumbing/heating/air cond contractor
|
1994
|
$66,717,074
|
375
|
Corporation
|
21
|
03193203
|
312533225
|
23 |
Ics Cool Energy LIMITED
|
England
|
Southampton
|
Calmore Industrial Stephenson Road
|
Totton
|
Hampshire
|
SO40 3SA
|
N/A
|
Plumbing/heating/air cond contractor
|
2005
|
$66,304,871
|
335
|
Corporation
|
906
|
05509182
|
276592288
|
24 |
K & T Heating Services LIMITED
|
England
|
Dartford
|
Crossways Point 15
|
Victory Way, Crossways Business Park
|
Kent
|
DA2 6DT
|
kths.co.uk
|
Plumbing/heating/air cond contractor
|
2004
|
$65,057,665
|
266
|
Corporation
|
21
|
05158607
|
441655166
|
25 |
Pimlico Plumbers LIMITED
|
England
|
London
|
Pimlico House
|
1 Sail Street
|
London
|
SE11 6NQ
|
pimlicoplumbers.com
|
Plumbing/heating/air cond contractor
|
1979
|
$65,000,000
|
111
|
Corporation
|
109
|
02012715
|
252766463
|
26 |
Adcock Refrigeration And Air Conditioning LIMITED
|
England
|
Cambridge
|
Unit K
|
South Cambridge Business Park Babraham Road, Sawston
|
Cambridgeshire
|
CB22 3JH
|
adcock.co.uk
|
Plumbing/heating/air cond contractor
|
1977
|
$60,057,943
|
0
|
Corporation
|
24
|
01307597
|
249089002
|
27 |
Hotchkiss Group Holdings LIMITED
|
England
|
Eastbourne
|
7 Marshall Road Hampden Park Industrial Estate
|
N/A
|
East Sussex
|
BN22 9AX
|
N/A
|
Plumbing/heating/air cond contractor
|
2020
|
$53,909,543
|
233
|
Corporation
|
19
|
12452387
|
251300572
|
28 |
Woodford Heating & Energy LIMITED
|
England
|
Loughton
|
Oakwood House
|
Oakwood Hill Industrial Estate Oakwood Hill
|
Essex
|
IG10 3TZ
|
woodfordheating.com
|
Plumbing/heating/air cond contractor
|
1994
|
$53,000,000
|
160
|
Corporation
|
3
|
02868418
|
354202160
|
29 |
Colt Group LIMITED
|
England
|
Petersfield
|
Colt House
|
Ridgeway Office Park, Bedford Road
|
Hampshire
|
GU32 3QF
|
coltgroup.com
|
Plumbing/heating/air cond contractor
|
1931
|
$52,575,912
|
33
|
Corporation
|
389
|
00905918
|
248658688
|
30 |
Sure Maintenance LIMITED
|
England
|
Liverpool
|
Unit 16
|
The Matchworks, Speke Road, Garston
|
Merseyside
|
L19 2RF
|
suregroup.co.uk
|
Plumbing/heating/air cond contractor
|
2000
|
$52,000,000
|
0
|
Corporation
|
21
|
04072464
|
249495776
|
31 |
Kudox LIMITED
|
England
|
London
|
Bray House
|
1 Bray Place
|
London
|
SW3 3LL
|
kudox.com
|
Plumbing/heating/air cond contractor
|
2003
|
$51,566,848
|
105
|
Corporation
|
2
|
04723897
|
437930136
|
32 |
T Brown Group LIMITED
|
England
|
Leatherhead
|
Ground Floor
|
Bluebird House, Station Road
|
Surrey
|
KT22 7BA
|
tbrownheating.co.uk
|
Plumbing/heating/air cond contractor
|
1971
|
$50,543,242
|
0
|
Corporation
|
9
|
01006630
|
248679481
|
33 |
Cubicworks LTD
|
England
|
Salford
|
2nd Floor
|
Spinnaker Court, 31 Broadway
|
Lancashire
|
M50 2YR
|
N/A
|
Plumbing/heating/air cond contractor
|
2019
|
$50,461,452
|
128
|
Corporation
|
0
|
12154582
|
251113841
|
34 |
Box & Charnock LIMITED
|
England
|
Bedford
|
Unit 15
|
Stephenson Court, Fraser Road Priory Business Park
|
Bedfordshire
|
MK44 3WJ
|
boxcharnock.co.uk
|
Plumbing/heating/air cond contractor
|
1977
|
$49,000,000
|
129
|
Corporation
|
3
|
01345422
|
248740511
|
35 |
Swale Heating LIMITED
|
England
|
Sittingbourne
|
Eurolink Industrial Estate Heard Way
|
N/A
|
Kent
|
ME10 3SA
|
swaleheating.com
|
Plumbing/heating/air cond contractor
|
1972
|
$48,256,324
|
0
|
Corporation
|
4
|
01076034
|
248676406
|
36 |
Vaughan Engineering LIMITED
|
England
|
Hebburn
|
14 Blue Sky Way Monkton Business Park South
|
Monkton Business Park South
|
Tyne and Wear
|
NE31 2EQ
|
vaughan-group.co.uk
|
Plumbing/heating/air cond contractor
|
1972
|
$47,601,863
|
0
|
Corporation
|
15
|
SC050679
|
248295348
|
37 |
Bsw Heating LTD
|
England
|
Kenley
|
3 Old Barn Lane
|
N/A
|
Surrey
|
CR8 5AT
|
bsw-heating.com
|
Plumbing/heating/air cond contractor
|
2008
|
$47,000,000
|
169
|
Corporation
|
2
|
01047746
|
248632200
|
38 |
H. Mitton LIMITED
|
England
|
Leeds
|
10 Wellington Place
|
N/A
|
West Yorkshire
|
LS1 4AP
|
N/A
|
Plumbing/heating/air cond contractor
|
1920
|
$45,310,223
|
312
|
Corporation
|
4
|
04013932
|
249335536
|
39 |
Bellrock Maintenance And Engineering Services LTD
|
England
|
Pinner
|
Elthorne Gate
|
64 High Street
|
Middlesex
|
HA5 5QA
|
N/A
|
Plumbing/heating/air cond contractor
|
2012
|
$43,972,776
|
169
|
Corporation
|
30
|
08320198
|
249055056
|
40 |
The James Mercer Group LIMITED
|
England
|
Preston
|
Tulketh Hall Works
|
Hesketh Street, Ashton-on-ribble
|
Lancashire
|
PR2 2RB
|
jamesmercergroup.co.uk
|
Plumbing/heating/air cond contractor
|
2000
|
$42,013,342
|
240
|
Corporation
|
5
|
03917286
|
254839702
|
41 |
S.A.V. United Kingdom LIMITED
|
England
|
Woking
|
Scandia House
|
Boundary Road
|
Surrey
|
GU21 5BX
|
microsaic.com
|
Plumbing/heating/air cond contractor
|
1953
|
$41,000,000
|
119
|
Corporation
|
4
|
00513621
|
247650445
|
42 |
Express Utilities LIMITED
|
England
|
Harlow
|
4 Astra Centre
|
Edinburgh Way
|
Essex
|
CM20 2BN
|
eplr.co.uk
|
Plumbing/heating/air cond contractor
|
1998
|
$39,701,744
|
177
|
Corporation
|
2
|
04135367
|
249620102
|
43 |
Pacifica Appliance Services LIMITED
|
England
|
Houghton-le-spring
|
Ventner House
|
3 Mandarin Road
|
Tyne and Wear
|
DH4 5RA
|
N/A
|
Plumbing/heating/air cond contractor
|
2004
|
$39,602,189
|
0
|
Corporation
|
14
|
05288361
|
426379080
|
44 |
Hotchkiss LTD
|
England
|
Eastbourne
|
7 Marshall Road Hampden Park Industrial Estate
|
N/A
|
East Sussex
|
BN22 9AX
|
hotchkiss.co.uk
|
Plumbing/heating/air cond contractor
|
1967
|
$38,166,495
|
166
|
Corporation
|
19
|
00900611
|
248674717
|
45 |
Weatherite Air Conditioning LIMITED
|
England
|
West Bromwich
|
Weatherite House
|
Credenda Road
|
West Midlands
|
B70 7JE
|
weatherite-manufacturing.com
|
Plumbing/heating/air cond contractor
|
2003
|
$36,794,233
|
200
|
Corporation
|
7
|
01829910
|
267119386
|
46 |
Hawco LIMITED
|
England
|
Godalming
|
Lower South Street
|
N/A
|
Surrey
|
GU7 1BZ
|
hawco.co.uk
|
Plumbing/heating/air cond contractor
|
1963
|
$36,114,331
|
181
|
Corporation
|
8
|
01537960
|
253460949
|
47 |
Mala Engineering LIMITED
|
England
|
London
|
9 Hewett Street
|
N/A
|
London
|
EC2A 3NN
|
mala.co.uk
|
Plumbing/heating/air cond contractor
|
1971
|
$35,950,280
|
163
|
Corporation
|
0
|
01004648
|
247932444
|
48 |
Edison House Trading LIMITED
|
England
|
Ipswich
|
Unit 7
|
Edison House, Edison Close, Ransomes Europark
|
Suffolk
|
IP3 9GU
|
cjfiresecurity.co.uk
|
Plumbing/heating/air cond contractor
|
2015
|
$34,709,534
|
23
|
Corporation
|
4
|
09523259
|
249518952
|
49 |
Jcw Energy Services LIMITED
|
England
|
Royston
|
Unit 7
|
Saxon Way, Melbourn
|
Hertfordshire
|
SG8 6DN
|
jcwes.com
|
Plumbing/heating/air cond contractor
|
2014
|
$34,254,930
|
0
|
Corporation
|
5
|
08831030
|
249254603
|
50 |
Orchard Plumbing LIMITED
|
England
|
Rochester
|
Ordnance Yard
|
59-61 Upnor Road, Lower Upnor
|
Kent
|
ME2 4UY
|
N/A
|
Plumbing/heating/air cond contractor
|
1999
|
$32,297,552
|
71
|
Corporation
|
2
|
03753251
|
254809571
|