SEMPERIAN INFRASTRUCTURE PORTFOLIO LIMITED

Active
Company number 06335776Private limited companyIncorporated 2007

Key figures

−£310,842,000
Net assets 2024/25

† SEMPERIAN INFRASTRUCTURE PORTFOLIO LIMITED filed these accounts on paper, so Companies House publishes them only as a scanned image. The figures for the years marked † were read automatically from the scan and kept only where the statements add up (for example net assets equal total equity), but a reading error is still possible — check the original accounts at Companies House.

Ratios

2025/26

Sector comparison

SIC 82990

Where the company stands among the 160,475 active companies whose first SIC code is 82990 (Other business support service activities n.e.c.).

Turnover£11,341,000
Higher than 67% · median £2,514,512 among 4,598 that publish turnover
Total assets£1,003,522,000
Higher than 99% · median £59,905
Cash£3,218,000
Higher than 96% · median £26,648
Company age19.3 years
Older than 80% · median 10.2 years
Largest in this sector by net assets
  1. WESTMARQ LTD.£11,053.6bn
  2. COMPANY PETROMARUZ LIMITED£381.5bn
  3. ASTRAZENECA INTERMEDIATE HOLDINGS LIMITED£88.4bn
  4. JOHNSON & JOHNSON MANAGEMENT LIMITED£72.1bn
  5. ASTRAZENECA SWEDEN INVESTMENTS LIMITED£24.1bn
  6. WILLIS GROUP LIMITED£16.8bn
  7. GLAXOSMITHKLINE INTELLECTUAL PROPERTY MANAGEMENT LIMITED£16bn
  8. WPP SPHINX LIMITED£15.6bn
  9. NATIONAL GRID (US) HOLDINGS LIMITED£10.1bn
  10. VIRGIN MEDIA COMMUNICATIONS LIMITED£5.3bn

Positions are approximate. Figures come from each company's latest accounts; money and employee figures are compared only with companies that filed accounts in pounds for a period ending in the last two and a half years and are not dormant, so those groups are smaller than 160,475. The line on each bar marks the median.

Summary: SEMPERIAN INFRASTRUCTURE PORTFOLIO LIMITED

What kind of company is it?

SEMPERIAN INFRASTRUCTURE PORTFOLIO LIMITED is a private limited company registered with Companies House under company number 06335776. It was incorporated on 7 Aug 2007. Its status is active. The registered office is in London (EC2V). Its nature of business (SIC 2007) is other business support service activities n.e.c. (82990).

How is the company doing financially?

The latest accounts in the database are for 2025/26 (period ending 31 Mar 2026); the company files full accounts. Turnover was £11,341,000. Cash at bank and in hand was £3,218,000. Total assets were £1,003,522,000 and total liabilities £1,344,325,000. Figures are available for 2 financial years (2024/25–2025/26).

How does it compare with similar companies?

Compared with 160,475 active companies whose first SIC code is 82990: By turnover it ranks higher than 67% of the 4,598 that publish turnover (median £2,514,512). By total assets it ranks higher than 99% of them (median £59,905). By cash it ranks higher than 96% of them (median £26,648). It is older than 80% of them (median age 10.2 years).

Who runs and controls the company?

One person with significant control is registered. 1 of 1 registered charges are outstanding.

When are its next filings due?

The next accounts are due by 31 Dec 2027. The next confirmation statement is due by 23 Jun 2027.

Filed accounts2024/25–2025/26
2024/25 †2025/26 †
Turnover9,673,00011,341,000
Profit for the year-26,248,000—
Cash at bank and in hand2,551,0003,218,000
Total assets140,091,0001,003,522,000
Total liabilities82,579,0001,344,325,000
Net assets / total equity-310,842,000—

A dash (—) means no accounts were filed for that year or the item is not in the accounts; 0 is a zero stated in the accounts. Small companies usually file only a balance sheet, so the profit and loss account is often missing.

History

7 events
  1. Financial year 2025/26 endedAccounts: turnover £11.3m
  2. Name changed to SEMPERIAN INFRASTRUCTURE PORTFOLIO LIMITEDPreviously SEMPERIAN PPP INVESTMENT PARTNERS LIMITED
  3. Financial year 2024/25 endedAccounts: turnover £9.7m, net assets −£310.8m
  4. Semperian Infrastructure Limited registered as a person with significant control
  5. Name changed to SEMPERIAN PPP INVESTMENT PARTNERS LIMITEDPreviously TRILLIUM PPP INVESTMENT PARTNERS LIMITED
  6. Name changed to TRILLIUM PPP INVESTMENT PARTNERS LIMITEDPreviously TRILLIUM PPP INVESTMENT PARTNERS (FINANCE) LIMITED
  7. Company incorporatedPrivate limited company

Dates as recorded at Companies House: incorporation, name changes, officer appointments and resignations, current persons with significant control, and the end of each financial year with figures in the database. Former persons with significant control are not listed.