What Boysen does

Boysen, founded in 1967 and headquartered in Munich, Germany, is a private industrial supplier specializing in aerospace fastening products and components, with historical operations also serving the automotive component supply chain. The company's product surface spans metric and imperial standard fastening parts as well as built-to-print components, positioning it as a Tier-2 supplier qualified to serve major integrators in aerospace and automotive channels. Its operational model is anchored in cross-border manufacturing, with the company actively relocating production from Germany to Hungary and Serbia to capture labor cost savings of up to 70%, alongside tax incentives and fast-track permitting.

The company's commercial relationships are concentrated among a small set of Tier-1 OEMs and integrators, including BMW, Mercedes, ZF, Bosch, and Continental, reflecting the structural dependence of Tier-2 component suppliers on qualification-driven OEM platforms. Its aerospace fastening legacy has been integrated into Bossard Aerospace, whose stated history references Boysen alongside Interfast and Aero Negoce International (ANI), suggesting consolidation into a broader aerospace distribution and engineering services platform. Business model mechanics — pricing, contract structure, distribution channels — are not publicly disclosed, and the company operates without disclosed revenue, certifications, or technology platforms beyond traditional manufacturing capabilities for components and systems.

Boysen operates with a workforce in the 51-100 range, and its strategic posture in the available data is predominantly defensive: factory closures in Germany paired with lower-cost geographic repositioning indicate an active restructuring cycle rather than an offensive growth phase. The combination of OEM-anchored customer concentration, geographic cost arbitrage, and integration into a larger aerospace distribution parent defines both the company's competitive position and its principal risks.

Name

Boysen

Website

https://boysen.aero

Company type

Private

Founded year

1967

Operating status

Operating

Headcount range

51–100 employees

Short description

Boysen is a Munich-based private supplier of aerospace fastening products and automotive components, founded in 1967, serving Tier-1 OEMs including BMW, Mercedes, ZF, Bosch, and Continental while relocating production from Germany to Hungary and Serbia.

Ownership category

akta.pro rank

Product category

Aerospace Fasteners

NAICS

Bolt, Nut, Screw, Rivet, and Washer Manufacturing (332722), Aerospace Product and Parts Manufacturing (33641), Turned Product and Screw, Nut, and Bolt Manufacturing (33272)

SIC

Bolts, Nuts, Screws, Rivets & Washers (3452), Aircraft & Parts (3720)

akta.pro primary industry

Aerospace Fasteners & Hardware (IMABANAA)

Keywords

• Aerospace fasteners
• Built-to-print parts
• Fastening components
• Aerospace hardware
• Aerospace manufacturing

Headquarters

HQ city

Munich

HQ country

Germany

HQ region

Europe

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Personnel, Operations, Infrastructure

Core offering

Boysen manufactures and supplies aerospace fastening products and components, including metric and imperial standard fasteners as well as built-to-print parts engineered to customer specifications. The company supports customers from design-phase engineering through component optimization, drawing on more than 55 years of fastening experience rooted in its heritage as part of the Bossard Aerospace lineage. Manufacturing operations are being relocated from Germany to Hungary and Serbia to leverage significantly lower labor costs and favorable investment policies.

Differentiator

Problem solved

Functional benefit

Products and services

• Aerospace Fastening Products and Components

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Five partnerships are on record, tiered core.

• BMWcoreStrategic or Co-development PartnerBMW is a major automotive manufacturer that is part of the same group of German companies relocating production to Hungary and Serbia. Boysen supplies automotive components to BMW as part of the automotive supply chain.
• MercedescoreStrategic or Co-development PartnerMercedes is a major automotive manufacturer that is part of the same group of German companies relocating production to Hungary and Serbia. Boysen supplies automotive components to Mercedes as part of the automotive supply chain.
• ZFcoreStrategic or Co-development PartnerZF is a major automotive supplier that is part of the same group of German companies relocating production to Hungary and Serbia, sharing similar supply chain dynamics.
• BoschcoreStrategic or Co-development PartnerBosch is a major automotive supplier that is part of the same group of German companies relocating production to Hungary and Serbia, sharing similar supply chain dynamics.
• ContinentalcoreStrategic or Co-development PartnerContinental is a major automotive supplier that is part of the same group of German companies relocating production to Hungary and Serbia, sharing similar supply chain dynamics.

Scale indicators1 record

Recent moves5 records

Expansion highlights3 records

Direct peers

• Precision Castparts Corp. Precision Castparts (Berkshire Hathaway) supplies aerospace fasteners, airfoils, and structural components through subsidiaries. Its aerospace fastener portfolio overlaps directly with Boysen's product offering and customer base.
• LISI Aerospace: LISI Aerospace is a leading global manufacturer of aerospace fasteners, structural components, and assembly solutions serving commercial aviation, defense, and space. It is a direct competitor to Boysen/Bossard Aerospace in the aerospace fasteners niche.
• Howmet Aerospace: Howmet Aerospace (formerly Arconic) is a major producer of aerospace fasteners, engine components, and titanium/aluminum structural parts. Its Fastening Systems segment directly competes with Boysen in aerospace and defense fastener markets.
• Böllhoff Group: Böllhoff is a German-headquartered family-owned manufacturer of fastening and assembly technology serving automotive, aerospace, and industrial customers. Strong geographic and product overlap with Boysen, particularly in automotive fasteners.
• Monogram Aerospace Fasteners: Monogram Aerospace Fasteners produces aerospace-grade blind bolts, lockbolts, and fastening systems for structural airframe applications. It competes directly with Boysen in aerospace fasteners with similar customer base.
• MacLean-Fogg Company: MacLean-Fogg is a major manufacturer of engineered fasteners and plastic components serving automotive, aerospace, power transmission, and infrastructure. Its fastener portfolio overlaps significantly with Boysen's automotive and aerospace work.

Broad incumbents

• Würth Group: Würth is a global industrial fastener, assembly, and C-parts distribution giant with a much broader product range and customer base than Boysen. It is a comparable incumbent in fastening technology, though it is significantly larger and more diversified.
• Bossard Group: Bossard Group is the parent entity of Bossard Aerospace, which absorbed Boysen's legacy. While a parent rather than a direct competitor, Bossard's global fastening and logistics business is the broader context in which Boysen now operates.
• Stanley Black & Decker: Stanley Black & Decker operates a global industrial fasteners and tools business with broad exposure to automotive, aerospace, and industrial customers. It is a large, diversified incumbent in the broader fasteners market.

Emerging players

• Click Bond: Click Bond specializes in adhesive-bonded mechanical fasteners and attachment solutions for aerospace and defense applications. It is a niche peer in aerospace fastening, overlapping with Boysen in the aerospace supply chain.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat3 records

Key risks6 records

Key highlights5 records

Customer concentration

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 Boysen