82/ 100
Robust

IRON MOUNTAIN (UK) PLC

Active01478540|Public Limited Company|Est. 46 years ago|Updated 12 Apr 2026
Financial Health
49
Compliance & Legal
75
Governance & Structure
75
Network Risk
30
Operational Quality
69

IRON MOUNTAIN (UK) PLC (01478540) is a public limited company registered in LONDON, incorporated in 1980. The company operates in the operation of warehousing and storage facilities for land transport activities sector. With 120 data signals collected from 11 government and public sources, IRON MOUNTAIN (UK) PLC has one of the more comprehensive data profiles in our database. Risk assessment: 82/100 ("robust"), reflecting a strong compliance and financial profile. The company has 13 outstanding mortgage charges registered with Companies House.

Key Facts

Status
Active
Company Type
Public Limited Company
Location
LONDON, SE1 2AU
Incorporated
11 Feb 1980
Accounts Category
FULL
Next Accounts Due
30 Jun 2026
Next Statement Due
14 Jan 2027
Mortgage Charges
36
Outstanding
13

About IRON MOUNTAIN (UK) PLC

Iron Mountain (UK) PLC is an active public limited company established in 1980, operating in London within the warehousing and storage facilities industry for land transport activities.

Business Profile

Business Model
B2B

Directors (3)

View all
  • Secretary since 18 May 2020
  • Director since 8 Jan 2021
  • Director since 14 Jun 2024

Data Signals

View details
120
Total Signals
11
Data Sources
82/100
Risk Score

Extensive data coverage from 11 government and public sources. Risk score of 82 indicates a strong compliance profile.

growth
82
Financial
15
ESG
9
Compliance
6
Governance
4
Risk
3
corporate_structure
1

Industry Context

IRON MOUNTAIN (UK) PLC is 1 of 512 operation of warehousing and storage facilities for land transport activities companies in LONDON, out of 5,549 active companies in this sector nationally (7,416 including dissolved).

9.3 yrs
Sector avg. age
97.1%
Older than peers
0.2%
Sector dissolution
Company: 46 yearsSector avg: 9.3 yrs
Older than 97.1% of active companies in this sector

Director Network

The 3 directors of IRON MOUNTAIN (UK) PLC are connected to 18 other companies.

Of these, 6 (33%) are dissolved or failed.

Property Portfolio

IRON MOUNTAIN (UK) PLC is listed as the proprietor of 65 properties in the HM Land Registry.

Properties are located in East Anglia, East Midlands, Greater London, North West, South East, South West, West Midlands, Yorks And Humber.

Government Contracts

IRON MOUNTAIN (UK) PLC has been awarded 82 government contracts with a combined value of £148.2M.

The most recent contract was with Ministry of Justice (23 Mar 2026).

Mortgage Charges

37
Total charges
14
Outstanding
23
Satisfied

Compliance & Trade

LEI Registered
Modern Slavery Compliant

Payment Practices

Period ending 31 Dec 2025
20 days
Avg. payment time
80%
Paid within 30 days
1%
Paid after 60 days

IRON MOUNTAIN (UK) PLC pays invoices in an average of 20 days. 80% are paid within 30 days — a good payment track record.

Data Sources

This company profile is built from 10 official data sources: Ch Officers, Companies House, Contracts Finder, Environment Agency, GLEIF, Gender Pay Gap Service, HM Land Registry, Modern Slavery Registry, Payment Practices, WHOIS.

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Frequently Asked Questions

What does IRON MOUNTAIN (UK) PLC do?

Iron Mountain (UK) PLC is an active public limited company established in 1980, operating in London within the warehousing and storage facilities industry for land transport activities..

Who are the directors of IRON MOUNTAIN (UK) PLC?

Current directors include , , .

Where is IRON MOUNTAIN (UK) PLC registered?

IRON MOUNTAIN (UK) PLC is registered in LONDON, United Kingdom.

What is the SIC code for IRON MOUNTAIN (UK) PLC?

IRON MOUNTAIN (UK) PLC operates under SIC code 52103 — Operation of warehousing and storage facilities for land transport activities.

What is the risk score for IRON MOUNTAIN (UK) PLC?

IRON MOUNTAIN (UK) PLC has a risk score of 82 out of 100, classified as "Robust". This score is calculated from 120 data signals across 11 government sources.

When are the next accounts due for IRON MOUNTAIN (UK) PLC?

The next accounts for IRON MOUNTAIN (UK) PLC are due on 30 Jun 2026.

Does IRON MOUNTAIN (UK) PLC own property in the UK?

Yes, IRON MOUNTAIN (UK) PLC is listed as the proprietor of 65 properties in the HM Land Registry, located in East Anglia, East Midlands, Greater London, North West, South East, South West, West Midlands, Yorks And Humber.

Does IRON MOUNTAIN (UK) PLC have government contracts?

Yes, IRON MOUNTAIN (UK) PLC has been awarded 82 government contracts with a combined value of £148.2M.

What is the operation of warehousing and storage facilities for land transport activities sector like in the UK?

The dissolution rate for the operation of warehousing and storage facilities for land transport activities sector in the UK is 0.2%. The average company age in this sector is 9.3 years.

Is IRON MOUNTAIN (UK) PLC still trading?

IRON MOUNTAIN (UK) PLC is currently listed as "Active" on Companies House, indicating it is still a registered company. An "Active" status means the company has not been dissolved, struck off, or entered into liquidation.

What type of company is IRON MOUNTAIN (UK) PLC?

IRON MOUNTAIN (UK) PLC is registered as a Public Limited Company, which is a company whose shares can be traded on a public stock exchange. PLCs must have a minimum share capital of £50,000.

How old is IRON MOUNTAIN (UK) PLC?

IRON MOUNTAIN (UK) PLC was incorporated on 11 Feb 1980, making it 46 years old. The company remains active and in good standing.

What industry does IRON MOUNTAIN (UK) PLC operate in?

IRON MOUNTAIN (UK) PLC is classified under SIC code 52103 (Operation of warehousing and storage facilities for land transport activities). The Standard Industrial Classification system is used by the UK government to categorise businesses by their primary economic activity.

How much data is available on IRON MOUNTAIN (UK) PLC?

We track 120 data signals from 11 official government sources for IRON MOUNTAIN (UK) PLC.

Data verified: 12 Apr 2026 from 11 official sources · Data sourced from Ch Officers, Companies House, Contracts Finder, Environment Agency, GLEIF, Gender Pay Gap Service, HM Land Registry, Modern Slavery Registry, Payment Practices, WHOIS and other official UK government databases. Verify on Companies House.