Bymetric
UK company intelligence
Top-level group

Graphmars Holdco Limited group

PSC-derived corporate control hierarchy for active UK corporate PSC filings.

Company profile
Children
85
Direct
1
Levels
8

Hierarchy

Updated 06 Jun 2026 16:52

PSC corporate control
  1. Root Active LTD 85 children

    Graphmars Holdco Limited

    CRN 13232295
    Profile
    1. Level 1 Active LTD 84 children

      Graphmars Midco Limited

      CRN 13236412
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      1. Level 2 Active LTD 83 children

        Graphmars Bidco Limited

        CRN 13237699
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        1. Level 3 Active LTD 79 children

          Premier Technical Services Group Limited

          CRN 06005074
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          1. Level 4 Active LTD 34 children

            PTSG Electrical Services Limited

            CRN 02811979
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            1. Level 5 Active LTD 5 children

              HD Sharman Group Limited

              CRN 11052295
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              1. Level 6 Active LTD 2 children

                Itac Limited

                CRN 00499145
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                1. Level 7 Active LTD 1 child

                  Delvemade Limited

                  CRN 02657837
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                  1. Level 8 Active LTD

                    Seamsil Limited

                    CRN 02855808
                    Profile
              2. Level 6 Active LTD 1 child

                Gutterline Services Limited

                CRN 08811464
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                1. Level 7 Active LTD

                  H.D.Sharman Limited

                  CRN 00945570
                  Profile
            2. Level 5 Active LTD 2 children

              BDS Group Limited

              CRN 13179987
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              1. Level 6 Active LTD 1 child

                Bespoke Detection Services Limited

                CRN 08639205
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                1. Level 7 Active LTD

                  BDS Electrical FM Limited

                  CRN 08641756
                  Profile
            3. Level 5 Active LTD 2 children

              Indepth Hygiene Services Limited

              CRN 00969762
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              1. Level 6 Active LTD

                Health & Safety Products Limited

                CRN 01914590
                Profile
              2. Level 6 Active LTD

                Indepth Services Limited

                CRN 01730197
                Profile
            4. Level 5 Active LTD 2 children

              Nap Height Services Limited

              CRN SC285771
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              1. Level 6 Active LTD

                Apex Steeplejacks Limited

                CRN SC240151
                Profile
              2. Level 6 Active LTD

                Pendrich Rope Access Limited

                CRN SC285772
                Profile
            5. Level 5 Active LTD 1 child

              System Hygienics Holdings Limited

              CRN 12164925
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              1. Level 6 Active LTD

                System Hygienics Limited

                CRN 01277207
                Profile
            6. Level 5 Active LTD

              Brooke Edgley Specialist Technical Services Limited

              CRN 00591982
              Profile
            7. Level 5 Active LTD

              Earth Tech LPS LTD.

              CRN SC409667
              Profile
            8. Level 5 Active LTD

              Guardian Electrical Compliance Limited

              CRN 07388602
              Profile
            9. Level 5 Active LTD

              HCS Water Treatment Ltd

              CRN SC423458
              Profile
            10. Level 5 Active LTD

              J W Gray Lightning Protection Limited

              CRN 04423038
              Profile
            11. Level 5 Active LTD

              M&P Fire Protection Ltd

              CRN 07296784
              Profile
            12. Level 5 Active LTD

              Naths Limited

              CRN SC239902
              Profile
            13. Level 5 Active LTD

              Nimbus Lightning Protection Limited

              CRN 06345500
              Profile
            14. Level 5 Active LTD

              Pendrich Height Services Limited

              CRN SC257071
              Profile
            15. Level 5 Active LTD

              R. Langston Jones & Company Limited

              CRN 02686030
              Profile
            16. Level 5 Active LTD

              Testing Services (UK) Limited

              CRN 04969148
              Profile
            17. Level 5 Active LTD

              Trinity Fire and Security Systems Ltd

              CRN 03304503
              Profile
            18. Level 5 Active LTD

              Trinity Ten Limited

              CRN 07261813
              Profile
            19. Level 5 Active LTD

              UK Dry Risers Limited

              CRN 06834899
              Profile
            20. Level 5 Active LTD

              UK Safety Management Ltd

              CRN 08817304
              Profile
            21. Level 5 Active LTD

              UK Sprinklers Limited

              CRN 07915651
              Profile
            22. Level 5 Active LTD

              White Testing (UK) Limited

              CRN SC291129
              Profile
          2. Level 4 Active LTD 17 children

            PTSG Access and Safety Limited

            CRN 03233894
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            1. Level 5 Active LTD 9 children

              Nationwide Specialist Services Limited

              CRN 11317499
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              1. Level 6 Active LTD 3 children

                Nss Maintenance Limited

                CRN 05326109
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                1. Level 7 Active LTD

                  AA Access (Holdings) Limited

                  CRN 07639688
                  Profile
                2. Level 7 Active LTD

                  Outreach Access Holdings Limited

                  CRN SC583324
                  Profile
                3. Level 7 Active LTD

                  Outreach Access Limited

                  CRN SC583138
                  Profile
              2. Level 6 Active LTD 2 children

                Nationwide Specialist Investments Limited

                CRN 06733179
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                1. Level 7 Active LTD

                  Reflekt Cleaning Limited

                  CRN 05401656
                  Profile
                2. Level 7

                  SC554952

                  CRN SC554952
              3. Level 6 Active LTD

                Nss Hire Limited

                CRN 04664914
                Profile
              4. Level 6 Active LTD

                Nss Testing Limited

                CRN 04659300
                Profile
            2. Level 5 Active LTD 2 children

              Electrical Compliance and Safety Ltd

              CRN 09468049
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              1. Level 6 Active LTD 1 child

                Total Environmental Compliance Limited

                CRN 03134746
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                1. Level 7

                  08975717

                  CRN 08975717
            3. Level 5 Active LTD

              Access Contracting Limited

              CRN 03240798
              Profile
            4. Level 5 Active LTD

              Fall Arrest Services Limited

              CRN 08501362
              Profile
            5. Level 5 Active LTD

              Neo Property Solutions Limited

              CRN 06307859
              Profile
            6. Level 5 Active LTD

              Pure Power Ltd

              CRN 09778919
              Profile
          3. Level 4 Active LTD 17 children

            PTSG Management Services Limited

            CRN 08493298
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            1. Level 5 Active LTD 1 child

              Acescott Management Services Limited

              CRN 09128186
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              1. Level 6 Active LTD

                Protectis Limited

                CRN 03204173
                Profile
            2. Level 5 Active LTD

              Access Training Solutions Limited

              CRN 06603449
              Profile
            3. Level 5 Active LTD

              Acescott Specialist Services Limited

              CRN 06603375
              Profile
            4. Level 5 Active LTD

              C.J.S. (Eastern) Limited

              CRN 03374593
              Profile
            5. Level 5 Active LTD

              Cardinal Specialist Services Limited

              CRN 02792592
              Profile
            6. Level 5 Active LTD

              Guardian Cradle Maintenance Ltd

              CRN 04948690
              Profile
            7. Level 5 Active LTD

              Kobi Limited

              CRN 08558606
              Profile
            8. Level 5 Active LTD

              Lightning Protection Testing Limited

              CRN 06087876
              Profile
            9. Level 5 Active LTD

              M&P Dry Riser Ltd

              CRN 11442028
              Profile
            10. Level 5 Active LTD

              National Cradle Maintenance Limited

              CRN 08493354
              Profile
            11. Level 5 Active LTD

              PTSG High Level Cleaning Limited

              CRN 08493424
              Profile
            12. Level 5 Active LTD

              PTSG Steeplejacking Limited

              CRN 06330511
              Profile
            13. Level 5 Active LTD

              PTSG Steeplejacks Limited

              CRN 06473821
              Profile
            14. Level 5 Active LTD

              PTSG Training Solutions Limited

              CRN 06603396
              Profile
            15. Level 5 Active LTD

              Thor Lightning Protection Limited

              CRN 08493328
              Profile
            16. Level 5 Active LTD

              Trinity Protection Systems Ltd

              CRN 08552492
              Profile
          4. Level 4 Active LTD

            Brooke, Edgley (Industrial Chimneys) Limited

            CRN 00754212
            Profile
          5. Level 4 Active LTD

            Ohmega Testing Services Limited

            CRN 08089054
            Profile
          6. Level 4 Active LTD

            PTSG Building Access Specialists Limited

            CRN 08950738
            Profile
          7. Level 4 Active LTD

            PTSG Electrical Testing Services Limited

            CRN 08798837
            Profile
          8. Level 4 Active LTD

            PTSG Fire Solutions Limited

            CRN 06603460
            Profile
          9. Level 4 Active LTD

            PTSG Limited

            CRN 08737754
            Profile
          10. Level 4 Active LTD

            PTSG Water Treatment Ltd

            CRN 08493281
            Profile
          11. Level 4 Active LTD

            Test Strike UK Limited

            CRN 06861151
            Profile
        2. Level 3 Liquidation LTD 2 children

          Bernard Midco Limited

          CRN 11974583
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          1. Level 4 Liquidation LTD 1 child

            Bernard Parentco Limited

            CRN 11974754
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            1. Level 5 Liquidation LTD

              Bernard Bidco Limited

              CRN 11976442
              Profile