Active16319653Private limited companyCambridge

SEIRLIS LTD

Significant control: Antonios Seirlis (75–100%)

From public filings as at 31 Aug 2026; may contain errors or be out of date.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

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What does Seirlis Ltd sell?

Registered activity: Manufacture of air and spacecraft and related machinery (SIC 30300). We’re building product and service lists for UK companies. Get this one when it’s ready.

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Summary

Generated from filed data · no estimates

SEIRLIS LTD is an active private limited company (company number 16319653) incorporated on 17 March 2025, registered in Cambridge. Its registered activity is manufacture of air and spacecraft and related machinery (SIC 30300). Latest micro accounts cover the period ending 31 March 2026, showing net assets of £100, with 0 employees on average. As micro-entity accounts, no profit and loss account is filed, so turnover and profit are not public.

Peer position · net assets

By net assets it sits in the top quarter of 81 comparable companies in Cambridge (median £100, upper quartile £100).

Ownership and control

1 active

AS
Mr Antonios Seirlis
Individual · since 17 March 2025
- owns 75–100% of shares
- holds 75–100% of voting rights
- can appoint or remove directors
75–100%

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.

Key dates

Incorporated: 17 March 20251 yr ago
Next accounts due: 31 December 2027in 434 days
Confirmation statement due: 31 March 2027in 159 days

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

Activity

SIC 30300: Manufacture of air and spacecraft and related machinery
SIC 33160: Repair and maintenance of aircraft and spacecraft
Accounts type: Micro Entity
Size band: MicroCompanies Act thresholds

Financials

1 period on record · latest ending 31 March 2026

Net assets

£100

1 period on record

Cash at bank

Not reported

Turnover

Not disclosed

Employees

1 period on record

Filed accounts by period, newest first
Period end	Net assets	Cash	Debtors	Creditors <1y	Turnover	Profit	Employees
31 March 2026	£100	—	—	—	—	—	0

Figures as filed in iXBRL accounts at Companies House. "—" means the line was not reported in that filing; micro-entity accounts contain no profit and loss account.

Filing and accounts signals

Facts from the register · no rating

Net assets above zeroNet assets £100 at 31 March 2026
Incorporated less than two years agoIncorporated 17 March 2025; no accounts due yet

Neutral facts read from the register and filed accounts, each with its evidence. They are not a rating, a prediction or advice, and may be incomplete or out of date. How each signal is derived.

Timeline

Newest first

31 Dec 2027Next accounts duein 434 days
31 Mar 2027Confirmation statement duein 159 days
31 Mar 2026Accounts period endNet assets £100 · micro accounts
17 Mar 2025Incorporated

Similar companies in Cambridge

Same activity (manufacture of air and spacecraft and related machinery), closest in incorporation date

All companies incorporated on 17 March 2025 · in Mar 2025.

Reminders for SEIRLIS LTD

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