opendata.bot
Company number
03646040

O2 OAK LIMITED

Officer · PRISM COSEC LIMITED and 16 others
Active
✓ Active company on the official register. Next accounts due 30 September 2027.

Company details

South East, England Contains OS data © Crown copyright and database right. Contains Royal Mail data © Royal Mail copyright and database right. Source: Office for National Statistics licensed under the Open Government Licence v.3.0.
Registered name
O2 OAK LIMITED
Company number
03646040
Registered office
HIGHDOWN HOUSE, YEOMAN WAY, WORTHING, WEST SUSSEX, BN99 3HH, UNITED KINGDOM · 145 other companies at this postcode
Company type
Private Limited Company
Incorporated on
2 October 1998
Status
Active
Age
27 years
Previous names
TU PRODUCTS LIMITED (to 21 Jul 2015) · TELEFONICA DIGITAL COMMUNICATIONS LIMITED (to 21 Jul 2015) · TELEFONICA DIGITAL LIMITED (to 21 Jul 2015) · TELEFONICA UK COMMUNICATIONS LIMITED (to 21 Jul 2015) · O2 BEECH LIMITED (to 21 Jul 2015) · O2 LIMITED (to 21 Jul 2015) · TELEFONICA O2 EUROPE LIMITED (to 21 Jul 2015)
Nature of business (SIC)
61900 — Other telecommunications activities · 99999 — Dormant Company
Accounts — next due
30 Sept 2027
Accounts — last made up to
31 Dec 2025
Confirmation statement — next due
24 Jan 2027
Confirmation statement — last
10 Jan 2026

What the register says

Facts from the register, with the dates they are filed under. Not a score: what they mean is for you to judge, and every line can be checked against Companies House itself.

Companies House register snapshot, read 02/09/2026.

Officers

3 active · 14 resigned

corporate-secretary
Appointed 31/08/2021
Active
director
Appointed 30/04/2026
Active
director
Appointed 17/06/2021
Active

People with significant control

Beneficial owners holding over 25% of shares, voting rights or the right to appoint directors

Telefonica S A
owns 75–100% of shares · holds 75–100% of voting rights · can appoint and remove directors
Notified 06/04/2016

Corporate structure

Who controls this company, and who they control in turn

1 controller Drag to move · scroll to zoom · double-click to expand
Company Person Current control Ended

Connections

Telefonica S A name only
owns 75–100% of shares · holds 75–100% of votes · can appoint and remove directors Notified 06/04/2016 Controls 6 companies

Serving officers

corporate-secretary Appointed 31/08/2021
director Appointed 30/04/2026
director Appointed 17/06/2021

Change history

Reconstructed from the dated records Companies House publishes

DateChangeWasNow
30/04/2026 Director resigned MARTINEZ MASIDE, Guillermo
30/04/2026 Director appointed BERNAT, Juan Manuel Caro
31/08/2021 Corporate-secretary appointed PRISM COSEC LIMITED
17/06/2021 Director resigned EVANS, Mark
17/06/2021 Director resigned COBIAN, Patricia
17/06/2021 Corporate-secretary resigned O2 SECRETARIES LIMITED
17/06/2021 Director appointed MARTINEZ MASIDE, Guillermo
17/06/2021 Director appointed DE ALBUQUERQUE, Thomas Peter
01/08/2016 Director resigned DUNNE, Ronan James
01/08/2016 Director appointed COBIAN, Patricia
06/04/2016 Person with significant control added Telefonica S A
21/07/2015 Registered name changed TELEFONICA O2 EUROPE LIMITED O2 LIMITED
21/07/2015 Registered name changed O2 LIMITED O2 BEECH LIMITED
21/07/2015 Registered name changed O2 BEECH LIMITED TELEFONICA UK COMMUNICATIONS LIMITED
21/07/2015 Registered name changed TELEFONICA UK COMMUNICATIONS LIMITED TELEFONICA DIGITAL LIMITED
21/07/2015 Registered name changed TELEFONICA DIGITAL LIMITED TELEFONICA DIGITAL COMMUNICATIONS LIMITED
21/07/2015 Registered name changed TELEFONICA DIGITAL COMMUNICATIONS LIMITED TU PRODUCTS LIMITED
21/07/2015 Registered name changed TU PRODUCTS LIMITED O2 OAK LIMITED
30/04/2014 Director resigned PEREZ DE URIGUEN MUINELO, Francisco Jesus
30/04/2014 Director resigned HARWOOD, Robert John

Financial highlights

No figures could be read from the accounts filed on 04 May 2026. Companies House holds some filings only as a document image, which carries no tagged figures; the filing itself is on the register either way.

Documents for O2 OAK LIMITED

Need this one company on file? Buy the document on its own — no plan required.

Company extract£1.99

The full registration record as held today — name, number, status, registered office, company type, previous names, officers, PSC and SIC codes, timestamped for your file.

PDF Order
Financial statements£3.99

Every figure the company’s own accounts state, across each filed period, with year-on-year movement. Most UK companies file small or micro-entity accounts — a balance sheet and a headcount, no turnover or profit.

PDF + CSV Order
Ownership report£3.99

Who controls the company: persons with significant control, the nature of that control, the ownership graph and every other company those controllers hold.

PDF Order

Filing history

Most recent filings

AP01 — appoint-person-director-company-with-name-date
officers
AA — accounts-with-accounts-type-dormant
accounts
TM01 — termination-director-company-with-name-termination-date
officers
CH01 — change-person-director-company-with-change-date
officers
CS01 — confirmation-statement-with-no-updates
confirmation-statement
CH01 — change-person-director-company-with-change-date
officers
CH01 — change-person-director-company-with-change-date
officers
AA — accounts-with-accounts-type-dormant
accounts
CS01 — confirmation-statement-with-no-updates
confirmation-statement
CS01 — confirmation-statement-with-no-updates
confirmation-statement
AA — accounts-with-accounts-type-dormant
accounts
CS01 — confirmation-statement-with-no-updates
confirmation-statement
AA — accounts-with-accounts-type-dormant
accounts
CH01 — change-person-director-company-with-change-date
officers
CS01 — confirmation-statement-with-no-updates
confirmation-statement
AA — accounts-with-accounts-type-dormant
accounts
CH01 — change-person-director-company-with-change-date
officers
CH01 — change-person-director-company-with-change-date
officers
CH01 — change-person-director-company-with-change-date
officers
CS01 — confirmation-statement-with-no-updates
confirmation-statement
AP04 — appoint-corporate-secretary-company-with-name-date
officers
AD01 — change-registered-office-address-company-with-date-old-address-new-address
address
CH01 — change-person-director-company-with-change-date
officers
TM02 — termination-secretary-company-with-name-termination-date
officers
AP01 — appoint-person-director-company-with-name-date
officers

Data protection register

No entry found on the ICO register of fee payers under this name.

Not every organisation has to register — some are exempt. An absent entry is a question to ask, not a finding.

Get this company via API

Every field on this page is available as structured JSON behind one endpoint and one API key.

GET /v1/company/gb/03646040
X-Api-Key: $OPENDATA_KEY
Read the API docs

Frequently asked questions

What is the company number of O2 OAK LIMITED?
According to the official registry, the company number of O2 OAK LIMITED is 03646040.
Where is O2 OAK LIMITED registered?
The registered office is HIGHDOWN HOUSE, YEOMAN WAY, WORTHING, WEST SUSSEX, BN99 3HH, UNITED KINGDOM.
Who runs O2 OAK LIMITED?
PRISM COSEC LIMITED is listed among the officers of O2 OAK LIMITED.
What is the SIC code of O2 OAK LIMITED?
The nature of business is recorded under SIC code 61900 — Other telecommunications activities, 99999 — Dormant Company.
Who controls O2 OAK LIMITED?
Telefonica S A is recorded as a person with significant control, and owns 75–100% of shares, holds 75–100% of voting rights, can appoint and remove directors.
When are the next accounts of O2 OAK LIMITED due?
The next annual accounts are due by 30 September 2027, and the last accounts were made up to 31 December 2025.

About O2 OAK LIMITED (03646040)

O2 OAK LIMITED is a private limited company incorporated on 2 October 1998 and registered in the United Kingdom under company number 03646040. Its registered office is at HIGHDOWN HOUSE, YEOMAN WAY, WORTHING, WEST SUSSEX, BN99 3HH, UNITED KINGDOM. The recorded nature of business is other telecommunications activities (SIC 61900). The company is currently active , with statutory accounts last made up to 31 December 2025. 17 active officers are on record , and the person with significant control is Telefonica S A. This profile is provided by opendata.bot by Noetikos, aggregating official data from Companies House bulk data , last refreshed 9 September 2026.

Companies at the same registered office

Other telecommunications activities across UK registers

The same sector and the same company, seen through every register we hold

Explore by sector

Every UK company records what it does as a SIC code — browse the sectors around this one.