Active16580432Private limited companyLondon

ALT-NRG LTD

Significant control: Andrew Neasham Winship (25–50%), Widya Wahyuni Siswanto (25–50%) and 1 more

Companies HouseCompanies House

From public filings as at 31 Aug 2026; may contain errors or be out of date. Verify at Companies House · Terms

Watch this company

Get an email when Companies House records a change for Alt-Nrg Ltd: status, filings, accounts, officers or owners. Free.

Not live yet: alerts start by 15 December 2026. We store your email and this company number only, for these alerts. If alerts don’t launch, we tell you and delete your address. Privacy

Coming soon · product and service lists

What does Alt-Nrg Ltd sell?

Registered activity: Engineering related scientific and technical consulting activities (SIC 71122). We’re building product and service lists for UK companies. Get this one when it’s ready.

One email, only about this. If we don’t launch within 60 days we’ll tell you. Privacy
01

Summary

Generated from filed data · no estimates

ALT-NRG LTD is an active private limited company (company number 16580432) incorporated on 14 July 2025, registered in London. Its registered activity is engineering related scientific and technical consulting activities (SIC 71122). No accounts have been filed yet; the first accounts are due by 14 April 2027.

There are 1,915 companies in engineering related scientific and technical consulting activities in London with filed accounts; the median reports net assets of £2,752 and is 5 years old.

02

Ownership and control

3 active
  • Mr Andrew Neasham Winship
    Individual · since 14 July 2025
    • owns 25–50% of shares
    • holds 25–50% of voting rights
    • can appoint or remove directors
  • Miss Widya Wahyuni Siswanto
    Individual · since 14 July 2025
    • owns 25–50% of shares
    • holds 25–50% of voting rights
    • can appoint or remove directors
  • Mr Aritra Dalal
    Individual · since 14 July 2025
    • owns 25–50% of shares
    • holds 25–50% of voting rights
    • can appoint or remove directors

Persons with significant control hold 25% or more of shares or voting rights. Smaller shareholdings are only listed in confirmation-statement documents. Directors and secretaries: see the officers list at Companies House.

03

Key dates

Incorporated
14 July 20251 yr ago
First accounts due
14 April 2027in 172 days
Confirmation statement due
28 July 2027in 277 days

Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.

04

Activity

SIC 71122
Engineering related scientific and technical consulting activities
Accounts type
No Accounts Filed
05

Financials

No accounts on record

No accounts filed yet. The first accounts are due by 14 April 2027; this page updates when they are filed.

06

Timeline

Newest first
  1. Confirmation statement duein 277 days
  2. First accounts duein 172 days
  3. Incorporated
07

Similar companies in London

Same activity (engineering related scientific and technical consulting activities), closest in incorporation date
08

Reminders for ALT-NRG LTD

Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.

Source: Companies House register, snapshot 2026-08-31. Open Government Licence v3.0. View on Companies House. Methodology · About · Markdown.