COMPLEX SYSTEMS ENGINEERING LTD

🇬🇧United Kingdom•Private Limited Company (Ltd.)•Active

Net margin (2023)Net margin

37%

YoY revenue (2022 vs 2023)YoY revenue

-36.5%

YoY profit / (loss) (2022 vs 2023)YoY profit / (loss)

Summary

CountryUnited Kingdom

StatusActive

Registration Number04863255

Founded12/08/2003

PurposeInformation technology consultancy activities; Other research and experimental development on natural sciences and engineering; Other professional, scientific and technical activities n.e.c.

AddressLonesome Farm, Lonesome Lane, Reigate, Surrey, RH2 7QT

Confirmation StatementNext due: —; Last made up: —

Legal & Status

Legal FormPrivate Limited Company (Ltd.)

StatusActive

Registration Date12/08/2003

Registry AuthorityCompanies House

Registered Capital£2

Source: UK Companies House · Last updated: 02/12/2025

Timeline (20 events)

31/01/2026

Annual accounts filed

Micro-entity accounts

View file in Documents

31/08/2024

Annual accounts filed

Annual Accounts · Accounting year ending 31/08/2024

View file in Documents

12/08/2003

Company incorporated

Incorporation date: 2003-08-12

Metric	2007	2008	2009	2010	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020	2021	2022	2023	2024
Turnover	—	—	—	—	—	—	—	—	—	—	£11,000	£12,000	£10,000	£6,000	£16,847	£17,000	£10,800	—
Profit / (loss)	—	£170	£170	£0	£0	£0	£0	£0	—	—	£3,236	£760	£10,000	£1,397	£12,131	£10,124	£3,993	—
Total assets	£2	£2	£172	£2	£2	£2	£2	£2	£2	£499	£4	£2	£2	£2	£2	£2	£2	£2
Net Assets Liabilities	—	—	—	—	—	—	—	—	—	—	£4	£2	£2	£2	£2	£2	£2	£2
Equity	—	—	—	—	—	—	—	—	—	—	£4	£2	£2	£2	£2	£2	£2	£2
Current Assets	—	£170	£170	£974	£902	£952	£922	£722	£0	£497	£2	£0	£0	£0	£0	£2	£0	£0
Net Current Assets Liabilities	—	£170	£170	£974	£902	£952	£922	£722	£0	£497	£2	£0	£0	£0	£0	£2	£0	£0
Total Assets Less Current Liabilities	—	£2	£172	£976	£902	£952	£922	£722	£2	£499	£4	£2	£2	£2	£2	£2	£2	£2
Number Shares Allotted	—	—	—	—	2	2	0	0	—	—	—	—	—	—	—	—	—	—
Par Value Share	—	—	—	—	£1	£1	£0	£0	—	—	—	—	—	—	—	—	—	—
Average Number Employees During Period	—	—	—	—	—	—	—	—	—	—	—	—	2	2	0	2	2	2
Admin expenses	—	—	—	—	—	—	—	—	—	—	£0	£11,240	£0	£4,276	£0	£4,502	£6,807	—
Called Up Share Capital	—	£2	£2	£2	£2	£2	£2	£2	—	—	—	—	—	—	—	—	—	—
Called Up Share Capital Not Paid Not Expressed As Current Asset	£2	£2	£2	£2	—	—	—	—	£2	£2	£2	£2	£2	£2	£2	£0	£2	£2
Cash Bank In Hand	—	£170	£170	£974	£902	£952	£922	£722	—	—	—	—	—	—	—	—	—	—
Net Assets Liabilities Including Pension Asset Liability	£2	£2	£172	£2	£2	£2	£2	£2	£2	£499	—	—	—	—	—	—	—	—
Other Operating Expenses Format2	—	—	—	—	—	—	—	—	—	—	£0	£11,240	£0	£4,276	£0	£4,502	£6,807	—
Profit Loss Account Reserve	—	£170	£170	£0	£0	£0	£0	£0	—	—	—	—	—	—	—	—	—	—
Provisions For Liabilities Charges	—	—	—	£974	£950	£924	£730	£1,580	£0	£0	—	—	—	—	—	—	—	—
Raw Materials Consumables Used	—	—	—	—	—	—	—	—	—	—	£6,956	£0	£0	£0	£1,870	—	£0	—
Share Capital Allotted Called Up Paid	—	—	—	—	£2	£2	£2	£2	—	—	—	—	—	—	—	—	—	—
Shareholder Funds	£2	£2	£172	£2	£2	£2	£2	£2	£2	£499	—	—	—	—	—	—	—	—
Tax Tax Credit On Profit Or Loss On Ordinary Activities	—	—	—	—	—	—	—	—	—	—	£808	—	£0	£327	£2,846	£2,374	—	—
Turnover Revenue	—	—	—	—	—	—	—	—	—	—	£11,000	£12,000	£10,000	£6,000	£16,847	£17,000	£10,800	—

Metric

2007

2008

2009

2010

2011

2012

2013

2014

2015

2016

2017

2018

2019

2020

2021

2022

2023

2024

Turnover

—

£11,000

£12,000

£10,000

£6,000

£16,847

£17,000

£10,800

—

Profit / (loss)

—

£170

£0

—

£3,236

£760

£10,000

£1,397

£12,131

£10,124

£3,993

—

Total assets

£2

£172

£2

£499

£4

£2

Net Assets Liabilities

—

£4

£2

Equity

—

£4

£2

Current Assets

—

£170

£974

£902

£952

£922

£722

£0

£497

£2

£0

£2

£0

Net Current Assets Liabilities

—

£170

£974

£902

£952

£922

£722

£0

£497

£2

£0

£2

£0

Total Assets Less Current Liabilities

—

£2

£172

£976

£902

£952

£922

£722

£2

£499

£4

£2

Number Shares Allotted

—

Par Value Share

—

£1

£0

—

Average Number Employees During Period

—

Admin expenses

—

£0

£11,240

£0

£4,276

£0

£4,502

£6,807

—

Called Up Share Capital

—

£2

—

Called Up Share Capital Not Paid Not Expressed As Current Asset

£2

—

£2

£0

£2

Cash Bank In Hand

—

£170

£974

£902

£952

£922

£722

—

Net Assets Liabilities Including Pension Asset Liability

£2

£172

£2

£499

—

Other Operating Expenses Format2

—

£0

£11,240

£0

£4,276

£0

£4,502

£6,807

—

Profit Loss Account Reserve

—

£170

£0

—

Provisions For Liabilities Charges

—

£974

£950

£924

£730

£1,580

£0

—

Raw Materials Consumables Used

—

£6,956

£0

£1,870

—

£0

—

Share Capital Allotted Called Up Paid

—

£2

—

Shareholder Funds

£2

£172

£2

£499

—

Tax Tax Credit On Profit Or Loss On Ordinary Activities

—

£808

—

£0

£327

£2,846

£2,374

—

Turnover Revenue

—

£11,000

£12,000

£10,000

£6,000

£16,847

£17,000

£10,800

—

Name	Holding	Voting	Since

Name	Ownership	Country	Since

COMPLEX SYSTEMS ENGINEERING LTD

Summary

Legal & Status

Timeline (20 events)

Annual accounts filed

Annual accounts filed

Company incorporated

Network

Ownership & Management

Persons with significant control

Ownership Timeline (1 changes)

Appointed David William Stupples (person)

Shareholders

Ultimate Beneficial Owner

Geography

Financials

Key figures

Documents

Company Report of COMPLEX SYSTEMS ENGINEERING LTD

Micro-entity accounts

Annual Accounts

Annual Accounts

Companexia Document AI

Annual Accounts

Annual Accounts

Annual Accounts

Annual Accounts

Annual Accounts

Annual Accounts

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Financial Health

Margins

Growth

Efficiency & returns

Working capital & liquidity

Capital structure