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Washington Consulting International, PLC

Active 15 years old · 2,624th oldest of 4,506 · incorporated in the 2010s

Company numberSC388838
StatusActive
Incorporated15/11/2010
Accounts last made up to30/09/2025
Next accounts due31/03/2027
Accounts typeDORMANT

Registered office

8 ALBANY STREET, EDINBURGH, EH1 3QB

Other PLCs registered in Edinburgh

Online

Website www.washingtonalliance.net

Found by searching for the company name and kept only where the domain matches it. Social accounts are listed only where the company links to them from its own site. Nothing here is supplied by the company to us.

Filing history

This company has 46 documents on its Companies House record. The most recent accounts were filed on 25/03/2026. Its last confirmation statement or annual return was filed on 19/10/2025.

Filings: accounts16
Filings: confirmation statements10
Filings: officer changes8
Filings: annual returns5
Filings: address changes2
Filings: share capital1

The most recent filings

Dormant accounts 25/03/2026
Confirmation statement 19/10/2025
Dormant accounts 12/03/2025
Confirmation statement 16/10/2024
Dormant accounts 11/03/2024
Confirmation statement 11/10/2023
Dormant accounts 07/03/2023
Confirmation statement 19/10/2022
Cessation of a person with significant control 04/04/2022
Notification of a person with significant control 04/04/2022

This is the list of documents filed, not their contents. A line saying accounts were filed records that they were filed and when; it says nothing about turnover, profit or assets, which are inside the documents themselves and are not published here. Read the filings on the Companies House record.

Who runs it

The register lists 3 current officers and 2 who have resigned.

WILLIAMSON CAPITAL ADVISORS LLC Corporate secretaryappointed 01/10/2016
Mark Curtis Williamson Directorappointed 15/11/2010
WILLIAMSON CAPITAL ADVISORS LLC Corporate directorappointed 01/10/2016

Who controls it

Companies must record the people or entities with significant control. The register shows 1 current entry.

Mr Mark Curtis Williamson
Owns 50% to 75% of the shares (through a trust); Holds 50% to 75% of the voting rights (through a trust); Can appoint and remove directors (through a trust); Has significant influence or control (through a trust)
since 04/04/2022

Charges

No charges are registered against this company.

Officers, controllers and charges are as recorded on the Companies House register on 13/10/2026, and the register changes daily. Appearing here is not an allegation about anyone. Read the current record on the Companies House record.

What it does

This page is compiled from the public register. Companies House does not verify the information filed with it, so treat everything here as what the company reported rather than as established fact. For filings, officers and charges, see the official Companies House record.

Registered office

No other PLC on the register gives this postcode.

On the register

  • 2,624th oldest of 4,506 PLCs
  • One of the 2010s cohort
  • Not in liquidation or facing strike off

There are 4,506 PLCs in Britain, under a tenth of one per cent of the register. The whole count.

Register data as at 2026-09-01 Download the full register (CSV)