3I MANAGED INFRASTRUCTURE ACQUISITIONS GP (2017) LLP

Active Registered number OC414502

3I MANAGED INFRASTRUCTURE ACQUISITIONS GP (2017) LLP (registered number OC414502) is a limited liability partnership incorporated on 8 November 2016. Its status on the Companies House register is Active. Its registered office is in London, SW1X 7LX.

Source: Companies House register, as at 29 September 2026. How to cite this page

Information only, not advice. Register details and accounts figures are the LLP's own filings, shown as filed: CompanyStack does not audit or verify them and accepts no responsibility for decisions made on them. Check important facts at Companies House.

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Partnership Report on 3I MANAGED INFRASTRUCTURE ACQUISITIONS GP (2017) LLP (PDF)

The register, the accounts and the members behind the LLP in one PDF, for your own business use.

Summary and Health Score, with the reasons behind the score
Red flags and what changed in the last 12 months
Key figures against the year before, and filing deadlines
Financials ledger: up to 10 years of filed accounts
Who runs and controls it: designated members, members and PSCs
Charges, filing history and methodology

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LLP details

Registered number: OC414502
Status: Active
Type: Limited Liability Partnership
Incorporated: 8 November 2016
Country of origin: United Kingdom
Registered office: 1 KNIGHTSBRIDGE
LONDON
SW1X 7LX
UNITED KINGDOM

Accounts and confirmation statement

Accounting reference date: 31 March
Accounts category: FULL
Accounts last made up to: 31 March 2026
Next accounts due: 31 December 2027
Confirmation statement last made up to: 1 April 2026
Next confirmation statement due: 15 April 2027

Financial summary

Accounts made up to 31 March 2026 are filed at Companies House. We have not read their figures yet: see them in the filing history on Companies House.

Members, control and charges

Members: Listed on Companies House: designated members and members.
Persons with significant control: 2 current (3 including ceased)
Corporate controllers: 3i Holdings Plc
3i Managed Infrastructure Acquisitions Gp Limited
Charges (mortgages): 12 registered, 8 outstanding, 4 satisfied

Questions about 3I MANAGED INFRASTRUCTURE ACQUISITIONS GP (2017) LLP

Is 3I MANAGED INFRASTRUCTURE ACQUISITIONS GP (2017) LLP active?

Yes. The Companies House register shows the LLP's status as “Active”. (Companies House register, as at 29 September 2026.)

When was 3I MANAGED INFRASTRUCTURE ACQUISITIONS GP (2017) LLP incorporated?

3I MANAGED INFRASTRUCTURE ACQUISITIONS GP (2017) LLP was incorporated on 8 November 2016, according to the Companies House register. (Companies House register, as at 29 September 2026.)

Where is 3I MANAGED INFRASTRUCTURE ACQUISITIONS GP (2017) LLP registered?

Its registered office is in London, SW1X 7LX. (Companies House register, as at 29 September 2026.)

Who controls 3I MANAGED INFRASTRUCTURE ACQUISITIONS GP (2017) LLP?

The register lists 2 current persons with significant control (3 including those who have ceased). Corporate controllers named on the register: 3i Holdings Plc; 3i Managed Infrastructure Acquisitions Gp Limited. Individuals are named at https://find-and-update.company-information.service.gov.uk/company/OC414502/persons-with-significant-control. (Companies House register, as at 29 September 2026.)

When are 3I MANAGED INFRASTRUCTURE ACQUISITIONS GP (2017) LLP's next accounts due?

The register shows the next accounts as due by 31 December 2027. Its latest accounts on the register were made up to 31 March 2026. (Companies House register, as at 29 September 2026.)

Does 3I MANAGED INFRASTRUCTURE ACQUISITIONS GP (2017) LLP file dormant accounts?

Not in its latest accounts. The register gives their category as “Full accounts”, made up to 31 March 2026. (Companies House register, as at 29 September 2026.)

Does 3I MANAGED INFRASTRUCTURE ACQUISITIONS GP (2017) LLP have any charges registered against it?

Yes. The register shows 12 charges: 8 outstanding and 4 satisfied. The charges themselves are listed at https://find-and-update.company-information.service.gov.uk/company/OC414502/charges. (Companies House register, as at 29 September 2026.)

Is 3I MANAGED INFRASTRUCTURE ACQUISITIONS GP (2017) LLP on a sanctions list?

No match for this company's name on the sanctions lists CompanyStack screens (UK, EU, OFAC SDN, OFAC non-SDN, Canada, Australia, New Zealand, Japan, France, US CSL) as at 6 October 2026. A name screen is not legal clearance.

Other active companies registered at SW1X 7LX

Companies registered in London

Companies with similar names

Other companies, LLPs and partnerships on the Companies House register whose names begin “3I MANAGED”. Each is a separate legal entity from 3I MANAGED INFRASTRUCTURE ACQUISITIONS GP (2017) LLP: check the registered number before relying on a name. Register data as at 29 September 2026.

3I MANAGED INFRASTRUCTURE ACQUISITIONS GP LIMITED (Company, Active, London; 10467007)
3I MANAGED INFRASTRUCTURE ACQUISITIONS II LP (Limited partnership, Active, London; LP024497)
3I MANAGED INFRASTRUCTURE ACQUISITIONS LP (Limited partnership, Active, London; LP017690)

About CompanyStack

CompanyStack turns Companies House records into answers you can act on: who a company or LLP is, who runs and controls it, whether it keeps up with its filings and how its finances are moving. Every figure traces back to a public record, and we say when a record is missing.

Sources for company pages: Companies House (register, accounts, officers, PSCs, charges and filings), The Gazette (company insolvency notices only), the ONS Postcode Directory, official sanctions lists, including those of the UK (with UN designations), the EU, the US, Canada, Australia, New Zealand and France, and copies taken in April 2026 of the ICO register, the Charity Commission, CQC, Ofsted, Food Standards Agency and Environment Agency registers. Contains public sector information licensed under the Open Government Licence v3.0. CompanyStack is not affiliated with or endorsed by Companies House.

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Use this data

Official register entry: 3I MANAGED INFRASTRUCTURE ACQUISITIONS GP (2017) LLP on Companies House.

Developers can fetch this profile as JSON with GET https://api.companystack.co.uk/company/OC414502 — see the API documentation and pricing.