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Company number
02619861

AETE LIMITED

Active
✓ Active company on the official register. Next accounts due 30 September 2026.

Company details

London, 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
AETE LIMITED
Company number
02619861
Registered office
15 BUCKINGHAM STREET, LONDON, WC2N 6DU · 185 other companies at this postcode
Company type
Private Limited Company
Incorporated on
12 June 1991
Status
Active
Age
35 years
Previous names
ECOFIN ADVISORS LIMITED (to 30 Sept 2024) · TORTOISE ADVISORS UK LIMITED (to 30 Sept 2024) · ECOFIN LIMITED (to 30 Sept 2024)
Nature of business (SIC)
66300 — Fund management activities
Accounts — next due
30 Sept 2026
Accounts — last made up to
31 Dec 2024
Confirmation statement — next due
25 Jan 2027
Confirmation statement — last
11 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.

People with significant control

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

Ecofin Investments, Llc
owns 75–100% of shares
Notified 03/08/2020
Mr Bernard Lambilliotte
owns 25–50% of shares
Notified 06/04/2016
Tortoise Borrower Llc
owns 75–100% of shares
Notified 07/12/2018

Corporate structure

Who controls this company, and who they control in turn

3 controllers Drag to move · scroll to zoom · double-click to expand
Company Person Current control Ended

Connections

Ecofin Investments, Llc name only
owns 75–100% of shares Notified 03/08/2020
Mr Bernard Lambilliotte
born 08/1958 · England owns 25–50% of shares Control ended 30/11/2018
Tortoise Borrower Llc name only
owns 75–100% of shares Control ended 03/08/2020

Change history

Reconstructed from the dated records Companies House publishes

DateChangeWasNow
30/09/2024 Registered name changed ECOFIN LIMITED TORTOISE ADVISORS UK LIMITED
30/09/2024 Registered name changed TORTOISE ADVISORS UK LIMITED ECOFIN ADVISORS LIMITED
30/09/2024 Registered name changed ECOFIN ADVISORS LIMITED AETE LIMITED
03/08/2020 Person with significant control ceased Tortoise Borrower Llc
03/08/2020 Person with significant control added Ecofin Investments, Llc
07/12/2018 Person with significant control added Tortoise Borrower Llc
30/11/2018 Person with significant control ceased Mr Bernard Lambilliotte
06/04/2016 Person with significant control added Mr Bernard Lambilliotte

Documents for AETE LIMITED

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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.

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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.

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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

Data protection register

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

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Get this company via API

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Frequently asked questions

What is the company number of AETE LIMITED?
According to the official registry, the company number of AETE LIMITED is 02619861.
Where is AETE LIMITED registered?
The registered office is 15 BUCKINGHAM STREET, LONDON, WC2N 6DU.
What is the SIC code of AETE LIMITED?
The nature of business is recorded under SIC code 66300 — Fund management activities.
Who controls AETE LIMITED?
Ecofin Investments, Llc is recorded as a person with significant control, and owns 75–100% of shares.
When are the next accounts of AETE LIMITED due?
The next annual accounts are due by 30 September 2026, and the last accounts were made up to 31 December 2024.

About AETE LIMITED (02619861)

AETE LIMITED is a private limited company incorporated on 12 June 1991 and registered in the United Kingdom under company number 02619861. Its registered office is at 15 BUCKINGHAM STREET, LONDON, WC2N 6DU. The recorded nature of business is fund management activities (SIC 66300). The company is currently active , with statutory accounts last made up to 31 December 2024. , and the person with significant control is Ecofin Investments, Llc. This profile is provided by opendata.bot by Noetikos, aggregating official data from Companies House bulk data , last refreshed 2 September 2026.

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