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Company

Portner LAW Limited

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Official record Companies House · updated 4th October 2026 · Sources

Network

The large node is Portner LAW Limited. Red nodes are organisations, white nodes are people. Sign in free to explore further.

Who leads it

Previous officers 4

  1. Samuel Rosenthal 2019-2020 Director View profile
  2. Adam King 2019-2026 Director View profile
  3. Mark Goldstein 2019-2020 Director View profile
  4. Guy Marshall Davis 2014-2017 Director View profile

Directors and secretaries as filed at Companies House.

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About

Incorporated
13/06/2014

Ownership

Owned by (5) iOwned byIndividuals and companies registered as having significant control over this company, from the Companies House PSC (persons with significant control) register. People whose ownership could not be confirmed to one individual are not listed as confirmed owners.

  • Mitchell Robert Griver
    significant influence · notified 2016-04-06
  • David Anthony Baker
    significant influence · notified 2016-04-06 - confirmed: also a director of this company
  • Daniel James Broughton
    significant influence · notified 2016-04-06 - confirmed: also a director of this company
  • Benjamin Leo Portner
    significant influence · notified 2022-06-13
  • Christina Andrea Antonas
    significant influence · notified 2022-06-13
  • Possible match - name could not be confirmed to one individualiPossible matchThis PSC filing could not be confirmed to one individual. Not shown as confirmed ownership.

Group

  1. Portner LAW Limited is controlled by Mitchell Robert Griver
    Evidence
    active significant influence · notified 2016-04-06 · source: Companies House PSC register

Ultimately controlled by Mitchell Robert Griver.

1 other company in this group

Ownership paths are calculated from Companies House persons-with-significant-control filings. Each step shows the filed nature of control and dates; a step marked "ceased" is historical, not current.

Board analysis

Board DNA

How this board is put together, from the Companies House officer record and Charity Commission trustee records - deterministic, no AI.iBoard compositionCounted from the dated Companies House officer record: the current directors only, past directors excluded.

5 directors on the board

11.5y median 12.1y
average tenure
12.1y
longest tenure

Directors past 6 years

First-time vs portfolio directors

First-time (1)

Portfolio (4)

Left in the last 12 months

  • Adam King Director · appointed 2019 · resigned 2026

Where else this board sits iWhere else this board sitsThe charitable fields these directors govern in elsewhere, by Charity Commission classification. Excludes this company and any charity it is the legal face of.

Other services 1

The sectors these directors govern in elsewhere. This company, and any charity it is the legal face of, are excluded - counting them would just tell you what you are already looking at.

Gaps to watch

  • Several long-serving directors could step down together
  • No director brings board experience from anywhere else
  • Narrow spread of sectors across the board

Where to look Suggested search: succession planning for long-tenured seats; a director with board experience elsewhere.

Sources

Official record from Companies House. Governance Register calculates the connections.

Record details
Company number
09085738
Status
Active
Type
Private Limited Company
Edition
Register edition compiled 4th October 2026
Labels
Official record from Companies House · Calculated derived by Governance Register.

Contains public sector information licensed under the Open Government Licence v3.0. Report an issue · How we handle data