Company Active LTD

Company profile

Advent Underwriting Limited

UK company 01227004, incorporated on 19 September 1975.

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RiverStone International is an industry-leading acquirer and reinsurer of legacy and discontinued insurance business specialising in the management of legacy business and portfolios.

Company number

01227004

Incorporated

19 Sep 1975

Companies House status

Active

Company identity

Founded / incorporated

19 September 1975

Company number 01227004

Verify at Companies House

Legal name

ADVENT UNDERWRITING LIMITED

Company type

LTD

Region

South East England

Registered address

Unknown

Insolvency history

Corporate ownership

Updated 07 Jul 2026 09:49

1 level 1 ultimate controller

Company Active LTD

Advent Underwriting Limited

CRN 01227004

Direct and ultimate controller Active LTD

Advent Capital (Holdings) Ltd

CRN 03033609

Company events

Reference milestones and recent Companies House filing stream events.

4 events

28 Sep

2026

Accounts With Accounts Type Total Exemption Full

Accounts PDF pending

AA | Transaction MzU0NzkxNzI5NWFkaXF6a2N4 | Paper/PDF filed

Published 29 Sep 2026 23:16

28 Jul

2026

Appoint Corporate Secretary Company With Name Date

Officers

AP04 | Transaction MzUzNTUyNDAwNWFkaXF6a2N4

Published 28 Jul 2026 16:52

28 Jul

2026

Termination Secretary Company With Name Termination Date

Officers

TM02 | Transaction MzUzNTUxNzg4OGFkaXF6a2N4

Published 28 Jul 2026 15:52

19 Sep

1975

Incorporated

Inception

Company registered at Companies House