Website & contact details
- Group website
- The site of this company’s group or brand.
Development Dimensions International (U.K.) Limited
- Incorporated
- 3 December 1982 (43 years)
- Industry
- Management consultancy activities other than financial management (70229)
- Directors
- Tacy ByhamPatsy Pei-San TsaoDavid Tessman-Keys
- Owned by
- Tacy Michael Byham
- Accounts type
- Small
- Region
- Greater London
- Address
- Runway East24-28 Bloomsbury WayLondonWC1A 2SN
Filing status
- Accounts due
- 31 May 2028
- Last accounts
- 31 August 2026
- Conf. stmt due
- 27 October 2026
- Last conf. stmt
- 13 October 2025
Charges
- Total
- 4
- Outstanding
- 0
- Part satisfied
- 0
- Satisfied
- 4
Officers 4 active
Officer details are public data from the Companies House register.
Byham, Tacy, Dr
Director · Appointed 1 November 2015
American
Born March 1968 (58)
Tsao, Patsy Pei-San
Secretary · Appointed 1 September 2014
Tsao, Patsy Pei-San
Director · Appointed 1 September 2014
American
Born June 1957 (69)
Tessman-Keys, David
Director · Appointed 1 January 2004
Australian
Born July 1971 (55)
Officer history (10 former)
1 July 2025
Resigned Watt, Bruce John as Director
19 October 2020
5 September 2017
Resigned Dalesio, Ronald Robert as Director
1 November 2015
Appointed Byham, Tacy, Dr as Director
1 September 2014
Appointed Tsao, Patsy Pei-San as Secretary
1 September 2014
Appointed Tsao, Patsy Pei-San as Director
1 September 2014
Appointed Watt, Bruce John as Director
1 September 2014
Resigned Rogers, Robert Walter as Director
31 August 2014
Resigned Koch, William Duane as Director
31 August 2014
Resigned Koch, William Duane as Secretary
26 April 2013
Resigned Newhall, Stephen Edward as Director
17 May 2007
Appointed Newhall, Stephen Edward as Director
17 May 2007
Resigned Newhall, Stephen Edward as Secretary
17 May 2007
Appointed Newhall, Stephen Edward as Secretary
1 January 2004
Appointed Tessman-Keys, David as Director
20 June 1999
Resigned Reeves, Russell Hamilton as Director
1 January 1998
Appointed Reeves, Russell Hamilton as Director
5 November 1997
Appointed Dalesio, Ronald Robert as Director
5 November 1997
Ownership 1 active
People and entities with significant control, from the Companies House PSC register
Tacy Michael Byham
Individual · Notified 6 April 2016
Owns 75–100% of shares
Holds 75–100% of voting rights
Right to appoint and remove directors
American
Born March 1968 (58)
Former controllers (2)
6 April 2016
Ceased Development Dimensions International Inc — Owns 75–100% of shares
6 April 2016
Financials
Figures from 2025 accounts. Newer accounts, made up to 31 August 2026, are filed but not read yet. See them on Companies House
- Cash
- £734,801
- Current Ratio
- 3.0x
Trend
Shareholder Funds
Balance sheet detail
| 2025 | 2024 | |
|---|---|---|
| Fixed Assets | £6,954 | £37,632 |
| Current Assets | £3,102,339 | £3,000,002 |
| Debtors | £2,365,534 | £2,021,064 |
| Cash | £734,801 | £977,634 |
| Creditors (< 1 year) | £1,047,902 | £1,343,029 |
| Creditors (> 1 year) | £0 | |
| Net Current Assets | £2,054,437 | £1,656,973 |
| Net Assets | £1,694,605 | |
| Shareholder Funds | £2,061,391 | £1,694,605 |
Filings 151
| Date | Description | Made Up To | Pages | |
|---|---|---|---|---|
| 9 October 2026 | Accounts for a small company | 31 August 2026 | ||
| 17 October 2025 | Confirmation statement with no updates | 13 October 2025 | ||
| 10 October 2025 | Accounts for a small company | 31 August 2025 | ||
| 18 July 2025 | Termination of appointment of a director | |||
| 6 June 2025 | Registered office address changed |
Some other companies at this address
Other companies in this industry
London
London
Preston
By trade and location
Explore the largest companies
Need accounts figures, ownership or websites for thousands of companies? Bulk data & API →