OpenRegistry
UK companies/Company owner profile

RSK ENVIRONMENT LIMITED

UK registered
openregistry-gb-SC115530·101 UK shareholdings·3 ownership layers

RSK ENVIRONMENT LIMITED is a UK-registered corporate shareholder (Companies House number SC115530) and holds shares in 101 active UK companies, recorded across 113 share-class positions on their Companies House confirmation statements (CS01). Beneath those direct holdings OpenRegistry resolves a further 34 companies spanning 3 ownership layers, of which 26 direct holdings are themselves holding companies; the persons-with-significant-control register independently agrees on 101 of these holdings. Sophymarine OpenRegistry ID openregistry-gb-SC115530. It ranks #11 of 54,210 corporate shareholders by number of active UK holdings. Programmatic access via MCP at https://openregistry.sophymarine.com/mcp.

Companies held
101
Share-class positions
113
Identity
UK company SC115530
Jurisdiction
UNITED KINGDOM
Ownership layers below
3
Holdings that are holding companies
26
PSC register agrees on
101 holdings

Shareholdings

Every company RSK ENVIRONMENT LIMITED appears on as a member, as filed. 101 of 101 are linked to their Companies House profile.

Company heldStatusAccountsShare classShares% of class% of capitalTotal % of capitalAs of
W.CROWDER & SONS LIMITEDopenregistry-gb-01069525ActiveFULLORDINARY5,565100.00%100.00%100.00%2024-05-02
RICHARD ALLITT ASSOCIATES LIMITEDopenregistry-gb-03255404ActiveAUDIT EXEMPTION SUBSIDIARYORDINARY1,290100.00%100.00%100.00%2023-09-28
CARBON ZERO CONSULTING LTDopenregistry-gb-03320795ActiveAUDIT EXEMPTION SUBSIDIARYORDINARY102100.00%100.00%100.00%2023-02-21
CS2 LIMITEDopenregistry-gb-03888977ActiveSMALLORDINARY102,128100.00%100.00%100.00%2023-01-04
ELSYM INSTALLATIONS LIMITEDopenregistry-gb-04070943ActiveTOTAL EXEMPTION FULLORDINARY100100.00%100.00%100.00%2025-09-08
AURORA HEALTH PHYSICS SERVICES LIMITEDopenregistry-gb-04276316ActiveSMALLORDINARY875100.00%100.00%100.00%2024-09-09
BTS GROUP LIMITEDopenregistry-gb-04299486ActiveFULLORDINARY52,632100.00%100.00%100.00%2023-10-31
MG SCAFFOLDING (OXFORD) LIMITEDopenregistry-gb-04543435ActiveSMALLORDINARY205100.00%100.00%100.00%2023-01-04
KENDALL KINGSCOTT LIMITEDopenregistry-gb-04605743ActiveFULLORDINARY138,351100.00%100.00%100.00%2026-01-16
HYDROFIX LIMITEDopenregistry-gb-04713320ActiveSMALLORDINARY108100.00%100.00%100.00%2023-07-04
MILESTONE COMMUNICATIONS LIMITEDopenregistry-gb-05542487ActiveFULLORDINARY1,250100.00%100.00%100.00%2023-08-31
CENTRAL ALLIANCE PRE CONSTRUCTION SERVICES LTDopenregistry-gb-05769713ActiveFULLORDINARY4,000,340100.00%100.00%100.00%2025-02-19
GHI RENEWABLES LIMITEDopenregistry-gb-05942386ActiveAUDIT EXEMPTION SUBSIDIARYORDINARY100100.00%100.00%100.00%2023-09-28
1ST INRAIL LIMITEDopenregistry-gb-06252002ActiveFULLORDINARY75100.00%100.00%100.00%2024-06-03
APOLLO STRATEGIC COMMUNICATIONS LIMITEDopenregistry-gb-06563797ActiveSMALLORDINARY4100.00%100.00%100.00%2025-09-25
ENVIREAU LTDopenregistry-gb-06647619ActiveSMALLORDINARY85100.00%100.00%100.00%2022-07-15
RSK ACOUSTICS LIMITEDopenregistry-gb-07102436ActiveAUDIT EXEMPTION SUBSIDIARYORDINARY13,052100.00%100.00%100.00%2022-12-22
COPELAND WEDGE ASSOCIATES LTDopenregistry-gb-07709882ActiveDORMANTORDINARY15,000100.00%100.00%100.00%2023-07-13
PD&MS HOLDINGS LIMITEDopenregistry-gb-08451993ActiveAUDIT EXEMPTION SUBSIDIARYORDINARY1100.00%100.00%100.00%2026-04-09
FELLOWS CONSTRUCTION CONSULTANTS LTDopenregistry-gb-08722651ActiveSMALLORDINARY940100.00%100.00%100.00%2023-10-12
EDP CONSULTANTS LTDopenregistry-gb-09114212ActiveSMALLORDINARY1,435100.00%100.00%100.00%2023-07-03
JB SITE INVESTIGATIONS LIMITEDopenregistry-gb-10057964ActiveAUDIT EXEMPTION SUBSIDIARYORDINARY1100.00%100.00%100.00%2026-04-28
OPTISOL SERVICES LTDopenregistry-gb-10212112ActiveSMALLORDINARY200100.00%100.00%100.00%2023-01-17
RSK ADAS LIMITEDopenregistry-gb-10486936ActiveFULLORDINARY4,000,100100.00%100.00%100.00%2024-12-06
WATER RESEARCH CENTRE LIMITEDopenregistry-gb-11172223ActiveFULLORDINARY4,050,000100.00%100.00%100.00%2025-02-11
ARGRENNAN ESTATE LIMITEDopenregistry-gb-13876305ActiveAUDIT EXEMPTION SUBSIDIARYORDINARY4,500,100100.00%100.00%100.00%2025-02-24
DWD PROPERTY AND PLANNING LIMITEDopenregistry-gb-15174312ActiveFULLORDINARY3,000,100100.00%100.00%100.00%2024-10-01
AJ ENGINEERING & CONSTRUCTION SERVICES LIMITEDopenregistry-gb-SC188199ActiveGROUPORDINARY25,000100.00%100.00%100.00%2025-07-30
GLOBAL RAIL CONSTRUCTION LIMITED openregistry-gb-04272798ActiveFULLORDINARY2100.00%100.00%100.00%2024-09-10
RSK INVESTMENTS LIMITED openregistry-gb-04500781ActiveDORMANTA ORDINARY505,017100.00%100.00%100.00%2025-08-12
BATEMAN SKIPS LTD openregistry-gb-04934307ActiveFULLORDINARY400100.00%100.00%100.00%2024-10-31
SALIX RIVER & WETLAND SERVICES LIMITED openregistry-gb-04944506ActiveSMALLORDINARY40,148100.00%100.00%100.00%2023-10-31
UP AND UNDER GROUP LIMITED openregistry-gb-05435793ActiveSMALLORDINARY200100.00%100.00%100.00%2023-04-26
MSS GROUP LIMITED openregistry-gb-05486864ActiveGROUPORDINARY307,695100.00%100.00%100.00%2023-06-22
WYSE GROUP LIMITED openregistry-gb-05665971ActiveDORMANTORDINARY116,666100.00%100.00%100.00%2023-06-15
EB7 LIMITED openregistry-gb-06434420ActiveSMALLORDINARY31,636,630100.00%100.00%100.00%2025-04-17
AXIS WELL TECHNOLOGY GROUP LIMITED openregistry-gb-08430347ActiveFULLORDINARY139,456,795100.00%100.00%100.00%2024-03-21
PROJECT IRES TOPCO LIMITED openregistry-gb-09113299ActiveAUDIT EXEMPTION SUBSIDIARYORDINARY7,107,723100.00%100.00%100.00%2024-07-02
BMG RESEARCH HOLDINGS LIMITED openregistry-gb-10236510ActiveDORMANTORDINARY1100.00%100.00%100.00%2025-03-28
CALIBRATE GROUP LIMITED openregistry-gb-12572433ActiveDORMANTORDINARY20,513100.00%100.00%100.00%2024-01-16
CX GROUP HOLDINGS LIMITED openregistry-gb-14655804ActiveDORMANTORDINARY100,000100.00%100.00%100.00%2024-02-22
ELECTROKINETIC LIMITEDopenregistry-gb-04183422ActiveDORMANTDEFERRED8,617,547100.00%99.69%100.00%2024-04-04
ORDINARY27,220100.00%0.31%
HV ENERGY SYSTEMS LTDopenregistry-gb-10754572ActiveSMALLORDINARY1,000100.00%96.99%96.99%2026-05-03
COPPER CONSULTANCY LIMITEDopenregistry-gb-03030759ActiveFULLORDINARY9,46984.62%84.62%84.62%2023-03-08
RSKW LTDopenregistry-gb-06548422ActiveDORMANTORDINARY1,60080.00%80.00%80.00%2023-03-31
RSK LAND & DEVELOPMENT ENGINEERING LIMITEDopenregistry-gb-04723837ActiveAUDIT EXEMPTION SUBSIDIARYA ORDINARY66,88180.04%75.00%75.00%2024-06-06
ADVANTAGE RSK LIMITEDopenregistry-gb-13660383ActiveSMALLA ORDINARY600100.00%60.00%60.00%2022-10-03
DEANS HOLDCO LIMITED openregistry-gb-SC783027ActiveFULLORDINARY662,3762.50%2.50%2.50%2025-09-18
W.G.M (ENGINEERING)LIMITEDopenregistry-gb-SC099834ActiveFULLORDINARY00.00%0.00%2023-08-31
RSK ORBITAL LIMITED openregistry-gb-03686187ActiveSMALLORDINARY1,0752023-12-22
TECHNIK GROUND SOLUTIONS LIMITEDopenregistry-gb-07874856ActiveSMALLORD7652021-12-09
SONIC DRILLING & PILING PLANTHIRE LIMITEDopenregistry-gb-07981593ActiveDORMANTORD7652022-03-08
3BM LIMITEDopenregistry-gb-08008506ActiveSMALLORDINARY115,3612025-04-17
PHAROS GENERATOR SERVICES LIMITEDopenregistry-gb-08334792ActiveSMALLORDINARY1002024-01-05
FISHTEK LIMITED openregistry-gb-03749571ActiveSMALLORDINARY1002023-01-10
PROJECT MILNER LIMITEDopenregistry-gb-08534885ActiveDORMANTORDINARY GBP1 SHARES1002023-05-17
KIRTON WATER TREATMENT SERVICES LIMITEDopenregistry-gb-08612475ActiveSMALLORDINARY 1P1112023-08-11
C.R. CIVIL ENGINEERING LIMITED openregistry-gb-03950591ActiveFULLORDINARY52024-07-01
WALDRAMS LIMITEDopenregistry-gb-08809725ActiveAUDIT EXEMPTION SUBSIDIARYORDINARY SHARES22021-12-13
EIB GROUP LIMITED openregistry-gb-11267170ActiveSMALLD ORDINARY22022-06-01
E ORDINARY2
F ORDINARY2
A ORDINARY2
B ORDINARY2
C ORDINARY2
PEGASYS LIMITEDopenregistry-gb-10333897ActiveSMALLORDINARY1002025-08-21
CRCE PLANT LIMITEDopenregistry-gb-10408804ActiveSMALLORDINARY12024-10-23
HAWKINS ELECTRICAL HOLDINGS LIMITEDopenregistry-gb-10697268ActiveFULLORDINARY100,0002024-02-19
FR CONSULTANTS LIMITEDopenregistry-gb-11354060ActiveFULLORDINARY2002023-03-20
RICHARD IRVIN FM LIMITEDopenregistry-gb-11454668ActiveFULLA ORDINARY80,0002023-07-11
B ORDINARY12,000
BROWN & MAY MARINE LIMITEDopenregistry-gb-01788594ActiveAUDIT EXEMPTION SUBSIDIARYORDINARY42023-11-24
TBF SCAFFOLDING LTDopenregistry-gb-01841098ActiveAUDIT EXEMPTION SUBSIDIARYORDINARY2002024-04-02
UP AND UNDER LIMITEDopenregistry-gb-02434409ActiveSMALLORDINARY50,1002024-05-30
BMG RESEARCH LTDopenregistry-gb-02841970ActiveFULLORDINARY SHARES216,7562025-09-25
ECONOMIC RESEARCH SERVICES LIMITEDopenregistry-gb-02937576ActiveSMALLORDINARY32023-06-05
NON ENTRY SYSTEMS LIMITEDopenregistry-gb-03052061ActiveAUDIT EXEMPTION SUBSIDIARYORDINARY952022-05-03
ENVIRESEARCH TECHNOLOGIES LIMITEDopenregistry-gb-11541342ActiveSMALLORDINARY1002021-08-31
MWH UK ACQUISITIONS LIMITEDopenregistry-gb-11652932ActiveAUDIT EXEMPTION SUBSIDIARYORDINARY202021-11-01
IAN FARMER ASSOCIATES (1998) LIMITEDopenregistry-gb-03661447ActiveAUDIT EXEMPTION SUBSIDIARYORDINARY20,0042024-11-06
SINGLETON CLAMP & PARTNERS LIMITEDopenregistry-gb-03728935ActiveSMALLORDINARY2002024-03-28
SUSTAINABLE AQUAFARMS LIMITEDopenregistry-gb-11791094ActiveAUDIT EXEMPTION SUBSIDIARYORDINARY298,9812025-02-18
STEPHENSON HALLIDAY LIMITEDopenregistry-gb-04179680ActiveSMALLA ORDINARY GBP1 SHARES552022-02-01
B ORDINARY GBP1 SHARES17
E ORDINARY GBP1 SHARES7
F ORDINARY GBP1 SHARES7
G ORDINARY GBP1 SHARES7
H ORDINARY GBP1 SHARES7
CEETECH LIMITEDopenregistry-gb-04242024ActiveFULLORDINARY27,0592022-06-27
ENVIRESEARCH LIMITEDopenregistry-gb-04292592ActiveSMALLORDINARY1002021-04-05
WE ARE BRANDNEW LTDopenregistry-gb-14247042Active - Proposal to Strike offAUDIT EXEMPTION SUBSIDIARYORDINARY02025-09-19
RSK COUNTRYSIDE MANAGEMENT LIMITEDopenregistry-gb-04515676ActiveSMALLORDINARY1002022-08-22
LARSEN WATER MANAGEMENT LTDopenregistry-gb-NI024918ActiveSMALLORDINARY292024-01-10
TBF TRAFFIC LTDopenregistry-gb-04689212ActiveSMALLORDINARY1002024-03-21
HOMER BURGESS LIMITEDopenregistry-gb-SC055598ActiveSMALLORDINARY101,7672024-01-26
PHAROS FIELD ENGINEERING SERVICES LIMITEDopenregistry-gb-04869285ActiveSMALLORDINARY1002024-09-04
PROEON SYSTEMS LIMITEDopenregistry-gb-05112628ActiveSMALLORDINARY1002024-04-29
STREETWISE UK MANAGEMENT LIMITEDopenregistry-gb-05129606ActiveSMALLORDINARY1002022-05-17
TRAVIS BAKER LIMITEDopenregistry-gb-05703678ActiveSMALLORDINARY22024-02-22
R.J.T. EXCAVATIONS LIMITEDopenregistry-gb-SC118090ActiveFULLORDINARY02025-12-11
SOUTHERN ECOLOGICAL SOLUTIONS LIMITED openregistry-gb-06192687ActiveFULLA ORDINARY10,0002023-03-30
RSK RENEWABLES LIMITEDopenregistry-gb-SC328796ActiveFULLORDINARY02023-07-12
WINDTECHS LTDopenregistry-gb-06369650ActiveSMALLORDINARY1002025-10-22
PA GROUP (UK) LIMITEDopenregistry-gb-06257126ActiveSMALLORDINARY12021-05-21
WATERTRAIN LIMITEDopenregistry-gb-06401993ActiveSMALLORDINARY2032024-03-26
HEADLAND ARCHAEOLOGY (UK) LIMITEDopenregistry-gb-SC342945ActiveFULLORDINARY02024-06-13
SPENCER QUANTUM LIMITED openregistry-gb-02928764ActiveFULLORDINARY5002024-05-31
HOLLYWOOD CIVIL ENGINEERING LIMITEDopenregistry-gb-06726914ActiveSMALLORDINARY1002024-10-30
TREEFELLERS LIMITEDopenregistry-gb-06727099ActiveSMALLORDINARY1002023-05-10
CENTARA LTDopenregistry-gb-07015837ActiveSMALLORDINARY1002024-09-23
THE WOODHOUSE PARTNERSHIP LIMITED openregistry-gb-02935938ActiveSMALLORDINARY2,0002023-07-24
ENVIROFLOW MANAGEMENT LIMITEDopenregistry-gb-07227667ActiveSMALLORDINARY1,0002022-04-07

Ownership structure below these holdings

34 further companies sit beneath this entity’s direct holdings, across 3 layers. Each is linked to its Companies House profile.

Related company owners

Corporate shareholders that hold shares in the same UK companies as RSK ENVIRONMENT LIMITED:

Other corporate shareholders of comparable size registered in UNITED KINGDOM: