What Bock does

Bock GmbH (BOCK® Compressors) is a German manufacturer of semi-hermetic reciprocating compressors founded in 1932 and headquartered in Frickenhausen, Germany. The company operates as a wholly-owned subsidiary of Danfoss within the Danfoss Climate Solutions division, serving two principal application areas: mobile transport refrigeration (bus, train, and commercial vehicle HVAC, including emission-free heat pumps for vehicle heating) and stationary commercial and industrial HVAC-R (air conditioning, heating, cooling, heat recovery, and heat pumps). Its product portfolio spans standard HG suction-gas-cooled and HA air-cooled compressors, LG low-GWP HFO/A2L variants, HG Aluminium lightweight compressors (~40% weight reduction) for mobile applications, CO2 compressors for transcritical and subcritical cycles, ATEX explosion-proof variants for hazardous environments, and UL-certified models for the North American market.

The underlying technology centers on semi-hermetic reciprocating compressor design with hermetically integrated electric motors, optimized for eco-friendly refrigerants including CO2 and low-GWP HFO/HFC options to meet EU F-Gas Regulations. Supporting proprietary elements include the INT69 G electronic motor protection system with PTC-based temperature monitoring, BOCKlub specialty compressor oils (E55, E85, A46), oil pump lubrication systems, and digital capacity regulation (DCR14). The product line is complemented by the VAP online compressor selection tool and the BOCKshop e-commerce platform, both aimed at streamlining OEM specification and procurement.

Commercially, Bock generates revenue through B2B hardware sales of compressors and condensing units to equipment manufacturers and end-users, distributed globally through Danfoss's sales and service network and direct regional BOCK® Sales & Services contacts. Pricing is not publicly disclosed and is handled through direct consultation. The go-to-market is sales-led, supported by Danfoss corporate digital channels (website, LinkedIn, X, Instagram, Facebook, YouTube) and product documentation. No revenue, headcount trend, or pricing model details are disclosed for Bock GmbH as a standalone entity.

Name

Bock

Legal name

Bock GmbH

Website

https://bock.de

Company type

Private

Founded year

1932

Operating status

Operating

Headcount range

101–250 employees

Short description

Bock GmbH (BOCK® Compressors) is a German manufacturer of semi-hermetic reciprocating compressors for commercial and industrial refrigeration, HVAC-R, and mobile transport cooling, serving OEMs in buses, trains, and stationary HVAC through eco-friendly CO2 and low-GWP refrigerant products as a subsidiary of Danfoss Climate Solutions.

Ownership category

akta.pro rank

Product category

Industrial Refrigeration Compressors

NAICS

Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing (333415), Air and Gas Compressor Manufacturing (333912)

SIC

Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585), Refrigeration & Service Industry Machinery (3580)

akta.pro primary industry

Compressors, Refrigeration Components & Condensing Units (IMADANAG)

akta.pro secondary industries

Air & Gas Compressors (General Purpose) (IMAHANAE), Automotive Compressors & Electric Compressors (A/C) (IMACALAB), Refrigeration Compressor Oils (IMAEAMAH), Pump & Compressor Packages (Skids, Booster Sets) (IMAHANAG)

Keywords

• Refrigeration compressors
• HVAC-R equipment
• Semi-hermetic compressors
• Transport cooling systems
• Industrial refrigeration

Headquarters

HQ city

Frickenhausen

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Operations, Supply Chain, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Compressor sales: BOCK® designs, manufactures and sells reciprocating compressors for commercial and industrial refrigeration, HVAC-R applications, and mobile transport cooling. Products include semi-hermetic compressors, vehicle compressors, CO2 compressors, and condensing units sold to equipment manufacturers and end-users.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

Bock designs and manufactures reciprocating compressors for commercial and industrial refrigeration, HVAC-R, and mobile transport cooling applications. The portfolio centers on semi-hermetic compressors offered in stationary variants (HG/HA, LG/A2L, CO2, ATEX, UL, HGZ two-stage) and mobile variants (HG Aluminium and FK vehicle compressors), supplemented by pre-assembled condensing units, BOCKlub specialty oils, and the VAP online compressor selection software. Products are optimized for eco-friendly refrigerants (CO2 and low-GWP) and F-Gas Regulation compliance.

Product overview

Bock (Bock GmbH) is a manufacturer of reciprocating compressors for commercial and industrial refrigeration and HVAC-R applications. The company offers two main application categories: mobile compressors (for buses, trains, and transport cooling) and stationary compressors (for commercial and industrial refrigeration, air conditioning, and heat pumps). The product portfolio centers on semi-hermetic compressors available in various configurations including standard HG models, HG LG (A2L/Low-GWP) variants, HG Aluminium (lightweight), CO2 compressors (transcritical and subcritical), ATEX explosion-proof models, UL-certified models, and two-stage HGZ compressors. Supporting the product line is the VAP (Visual Application Program) selection software for matching compressors to application requirements, and BOCKshop for online procurement. The company prioritizes eco-friendly refrigerants including CO2 and low-GWP options, and its products meet F-Gas Regulations for long-term use.

Differentiator

Problem solved

Functional benefit

Brands

• BOCK® Compressors: Eco-friendly compressors for refrigeration, air conditioning, and transport cooling applications featuring CO2 and low-GWP refrigerants

Products and services

• BOCK® Semi-hermetic Compressors Semi-hermetic reciprocating compressors with hermetically integrated electric motor for commercial and industrial refrigeration and HVAC-R applications; available in CO2, low-GWP, ATEX, UL, and standard configurations. Sold to OEMs, contractors, and end-users via the Danfoss sales network.
• HG Aluminium Mobile Compressors Lightweight aluminum construction compressors delivering approximately 40% weight savings versus standard reciprocating compressors; designed for mobile applications in buses, trains, and transport cooling, with eco-friendly refrigerants (CO2 and low-GWP) and emission-free heat pump compatibility.
• CO2 Compressors Compressors engineered for CO2 refrigerant applications in both transcritical and subcritical operating regimes; intended for commercial and industrial refrigeration customers seeking natural-refrigerant solutions compliant with F-Gas Regulations.
• LG (A2L) Low-GWP Compressors Compressors optimized for HFO (safety class A2L) and chlorine-free HFC low-GWP refrigerants; designed for demanding use with HFO refrigerants in stationary and mobile applications.
• ATEX HC Compressors Explosion-proof semi-hermetic compressors designed for hazardous environments Zone 1+2 and Zone 2, available in HC (hydrocarbon) variants; targeted at industrial sites with flammable atmospheres.
• UL Compressors Compressors certified to UL standards including HG and CO2 variants, intended for North American OEM and end-user markets.
• HGZ Two-Stage Compressors Two-stage reciprocating compressors for refrigeration and air conditioning applications requiring higher compression ratios than single-stage units.
• FK Vehicle Compressors Vehicle compressors specifically designed for bus and train air conditioning and transport refrigeration applications.
• Condensing Units (Stationary) Pre-assembled stationary refrigeration condensing units available in single-stage and two-stage configurations (SHG L, SHA L models), bundling compressor and heat-exchange components for simplified installation.
• BOCKlub Compressor Oils Proprietary compressor lubricants — BOCKlub E55, E85, and A46 — formulated for specific refrigerant classes; sold to compressor users and service operations as a complementary consumable.
• VAP Compressor Selection Software Free web-based selection tool that matches compressor models to required refrigerating capacity and operating conditions for stationary and mobile applications; provides direct path from specification to procurement through BOCKshop.

Quantifiable outcome

• Approximately 40% weight savings with aluminum compressors compared to standard compressors
• +1 more outcomes

Segments2 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature8 records

Partnerships

One partnership is on record.

• DanfosscoreStrategic or Co-development PartnerBOCK® is a brand within Danfoss Climate Solutions. The brand operates as part of the Danfoss Group, utilizing Danfoss's global distribution, sales network, and corporate resources while maintaining its specialized compressor product identity.

Scale indicators2 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Carrier Commercial Refrigeration: Global HVAC and refrigeration OEM offering compressors, condensing units and integrated systems for supermarkets and industrial customers. Larger portfolio than Bock, but competes in similar commercial refrigeration end markets.
• GEA Refrigeration Technologies: Large industrial conglomerate supplying complete refrigeration systems, compressors and components for food retail, cold storage and process industries. Overlaps with Bock at the compressor level but operates as a much broader systems integrator.
• Trane Technologies: Global HVAC and commercial refrigeration incumbent offering chillers, compressors and integrated climate solutions. Competes with Bock primarily in stationary commercial/industrial HVAC-R applications.
• Mitsubishi Electric (HVAC/Compressor Division): Large Japanese manufacturer of scroll, screw and centrifugal compressors for HVAC and refrigeration. Overlaps with Bock's stationary product range and increasingly in low-GWP and inverter-driven compressor technology.

Direct peers

• Dorin: Italian maker of semi-hermetic and open-type reciprocating compressors, including CO2 (transcritical) models, serving commercial and industrial refrigeration. Direct head-to-head competitor to Bock's stationary product lines.
• Bitzer: Germany-based global manufacturer of reciprocating, screw and scroll compressors for refrigeration and air conditioning. Direct competitor to Bock across semi-hermetic and CO2 compressor lines serving commercial and industrial refrigeration.
• Frascold: Italian manufacturer of semi-hermetic and open-type reciprocating compressors for commercial and industrial refrigeration. Comparable product positioning to Bock in the same mid-power refrigeration segment.
• RefComp: Italian/Chinese manufacturer of semi-hermetic reciprocating compressors, including CO2 and R290 (hydrocarbon) models for commercial refrigeration. Closely comparable technology stack and customer base to Bock.
• Hanbell Precise Machinery: Taiwan-based manufacturer of screw and reciprocating compressors for air conditioning and refrigeration, including magnetic-bearing and energy-efficient models. Comparable in product category and customer overlap with Bock's stationary and industrial offerings.
• Copeland (Emerson Climate Technologies): One of the world's largest compressor manufacturers, offering semi-hermetic, scroll and screw compressors for commercial refrigeration and HVAC. Overlaps directly with Bock in CO2, low-GWP and standard refrigeration compressor categories.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights7 records

Customer concentration

• Xtwitter.com/danfoss
• YouTubeyoutube.com/c/danfoss
• Facebookfacebook.com/danfoss
• LinkedInlinkedin.com/company/bock-compressors
• Instagraminstagram.com/danfoss_group

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 Bock