Millstream

What Millstream does

Millstream (Penthouse Systems) Ltd (MPSL) is a UK-headquartered, privately held specialist manufacturer of military tentage systems and collective protection equipment, operating from a single facility in Morden, Surrey. The company's portfolio is anchored on NBC (Nuclear, Biological, Chemical) Collective Protection Systems, including hardened tentage complexes, Unhardened Collective Protection Systems (UCPs), entry/exit units, and chemical covers, supported by adjacent products such as camouflage systems, sleeping platforms, thermal materials, and steel/aluminium structural components. Its core differentiator is the proprietary CARM (Chemical Agent Resistant Material) technology — developed with UK MoD assistance and superseded by CARM 2000 — which provides total protection from liquid chemical contamination and has been chamber tested at DRA Chertsey, DCTA Colchester, and Porton Down to DEF STAN 00-35 A1 to C3 environmental standards.

MPSL generates revenue through direct B2B defence procurement, supplying the UK Ministry of Defence and overseas military organisations, and through OEM-style supply to a roster of at least nine defence prime contractors including BAe Systems, Thales, General Dynamics, Anteon UK, Dytecna, Marshall's of Cambridge, G3, Insys, and MSI Defence Systems. Internationally, revenue is routed through a sole distributorship network of marketing agents covering 15 countries across North America, Europe, the Middle East, and South and Southeast Asia. Pricing is not publicly disclosed and operates within opaque government procurement channels. The company is ISO 9001 2000 accredited and employs an in-house CAD-based design team, but no headcount, revenue, or funding data is disclosed, and the public-facing material carries a 2004 copyright date, which limits visibility into current scale or trajectory.

Name

Millstream

Legal name

Millstream (Penthouse Systems) Ltd

Website

https://millstream-ltd.co.uk

Company type

Private

Operating status

Operating

Short description

Millstream (Penthouse Systems) Ltd is a UK-based specialist manufacturer of military tentage and NBC collective protection systems, supplying proprietary CARM materials, tentage complexes, and entry/exit units to the UK Ministry of Defence, overseas militaries, and defence prime contractors through direct sales and a 15-country distributor network.

Ownership category

akta.pro rank

Headquarters

HQ city

London

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Operations, Personnel, Technology or R&D, Supply Chain

Revenue model

1. Military Tentation and Protective Equipment Sales: MPSL generates revenue through the sale of specialised military tentage systems, NBC protection equipment, and CARM materials to UK MoD, overseas military organisations, and defence prime contractors. Products include tentage complexes, entry/exit systems, chemical covers, and protective covers for vehicles and equipment.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels3 records

Core offering

Millstream (Penthouse Systems) Ltd (MPSL) designs, develops and manufactures specialised military tentage systems and protective equipment for the UK Ministry of Defence, overseas military organisations and defence prime contractors. Core offerings include NBC (Nuclear, Biological, Chemical) Colpro tentage, Non-NBC tentage, Unhardened Collective Protection Systems (UCPs), entry/exit systems, camouflage systems, and proprietary Chemical Agent Resistant Material (CARM/CARM 2000) developed with UK MoD assistance.

Product overview

Millstream (Penthouse Systems) Ltd is a specialist supplier of military tentage systems providing protection for personnel and equipment in harsh environments. The company offers a unified portfolio centered on NBC (Nuclear, Biological, Chemical) Collective Protection Systems, featuring CARM (Chemical Agent Resistant Material) as the foundational protective technology. The product line includes NBC Colpro Tentage, Non-NBC Tentage, Unhardened Collective Protection Systems (UCPs), and Entry/Exit Systems as core offerings, supplemented by Camouflage Systems, Sleeping Platforms, Traffic Sign Equipment, Thermal Materials, Textiles/Tarpaulins/Insect Nets, and Steel/Aluminium Components. Using innovative designs with computer-aided design tools and specialist materials, MPSL provides rugged, durable and cost-effective systems meeting requirements from DEF STAN 00-35 A1 to C3 standards, working closely with prime contractors including Anteon UK, General Dynamics, Thales, Dytecna, BAe Systems, and Marshall's of Cambridge.

Differentiator

Problem solved

Functional benefit

Products and services

• Chemical Agent Resistant Material (CARM)

Quantifiable outcome

• CARM 2000 passed stringent military testing criteria at DCTA Colchester and Porton Down

Named customers8 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Ten partnerships are on record, tiered core and minor.

• International Distributor NetworkcoreChannel Partner/ Reseller/ DistributorMPSL has awarded sole distributorship to marketing agents in 15 countries: Canada, Czech Republic, France, Holland, India, Kuwait, Malaysia, Norway, Pakistan, Saudi Arabia, Singapore, Switzerland, Turkey, UAE, USA. These distributors handle exclusive sales representation in their respective territories.
• Anteon UKminorStrategic or Co-development PartnerMPSL provides tentage solutions and shelter applications to Anteon UK as a prime contractor in the defence industry. Working relationship where MPSL supplies specialised components for larger defence contracts.
• General DynamicsminorStrategic or Co-development PartnerMPSL supplies protective cover systems and tentage solutions to General Dynamics. Partnership involves integration of MPSL products into broader defence systems offered by the prime contractor.
• ThalesminorStrategic or Co-development PartnerMPSL provides tentage solutions to Thales as part of defence infrastructure projects. MPSL's specialised tentage systems are incorporated into Thales's broader defence offerings.
• BAe SystemsminorStrategic or Co-development PartnerMPSL supplies shelter applications and protective systems to BAe Systems. Long-standing supplier relationship for integration into BAe Systems defence contracts.
• MSI Defence SystemsminorStrategic or Co-development PartnerMPSL provides tentage solutions to MSI Defence Systems for incorporation into defence and security infrastructure projects.
• DytecnaminorStrategic or Co-development PartnerMPSL supplies tentage solutions and protective systems to Dytecna as part of defence and humanitarian infrastructure contracts.
• G3minorStrategic or Co-development PartnerMPSL provides tentage solutions to G3 as part of defence contractor supply chain relationships.
• InsysminorStrategic or Co-development PartnerMPSL supplies protective systems and tentage solutions to Insys for integration into defence projects.
• Marshall's of CambridgeminorStrategic or Co-development PartnerMPSL provides tentage and shelter solutions to Marshall's of Cambridge as part of defence sector supply relationships.

Scale indicators4 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Alaska Structures: Manufacturer of military and expedition shelter systems including NBC-capable and standard tentage. Closely comparable product offering and customer base to Millstream's tentage portfolio.
• Zeppelin Mobile Systeme: German provider of mobile shelter systems and containers for military and humanitarian deployment. Overlaps with Millstream's collective protection and modular tentage offerings.
• HDT Global: US-based manufacturer of military shelters, tentage, and expeditionary infrastructure serving US DoD and allied forces. Directly competes with Millstream in deployable NBC and non-NBC military tentage systems.
• HTS tentiQ: German-headquartered manufacturer of military and industrial tent systems with a comparable aluminum-frame tentage product line. Direct competitor in military shelter tenders globally.
• Marshall Land Systems: UK-based manufacturer of military shelters, containers, and tactical infrastructure systems. Comparable product range and UK defence customer base, operating within the Marshall of Cambridge group.
• Weatherhaven: Canadian deployable shelter provider serving military and humanitarian customers worldwide. Comparable soft-wall shelter and container-based expeditionary infrastructure offerings.
• Losberger De Boer: Global manufacturer of military and event tent systems including NBC collective protection variants. Directly comparable deployable tentage and shelter product line for defense customers.
• Avon Protection: UK-headquartered specialist in NBC protective equipment including respirators, suits, and collective protection systems. Closest comparable UK-based NBC protection peer to Millstream.

Broad incumbents

• Dräger: Large German safety and medical technology company with a defense and CBRN protection portfolio. Overlaps with Millstream in NBC collective protection but offers a much broader product suite.
• 3M Personal Safety Division: Global conglomerate with military-grade protective equipment including respiratory and CBRN products. Adjacent to Millstream's NBC protection offering but not focused on tentage or collective protection shelter systems.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/mind-yourself

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Millstream