What Straub does

STRAUB KG is a German family-owned manufacturer specializing in stainless steel manifold solutions for heating and cooling systems, operating from two production sites in Bad Überkingen and Gotha. Founded in 1978 by Hans Straub, the company pioneered the world's first stainless steel manifold in 1998 using proprietary hydroforming technology, a manufacturing method that enables high-strength products with up to 70% raw material savings versus conventional brass manifolds. Its current product portfolio spans five lines: stainless steel manifolds (heating, sanitary, industrial variants), the EGO Adaptive Flow Controller (an AI-powered autonomous hydraulic balancing device launched in 2023), the Regolux flowmeter, modular control systems, and patented manifold cabinets.

The company operates a sales-led B2B go-to-market model, engaging directly with industry partners on customized manifold solutions from development through series production. Customers span heating and cooling system manufacturers, sanitary installation companies, and industrial clients requiring radiant cooling and saltwater manifolds. Revenue is generated through one-time sales of manufactured goods with quote-based pricing for individualized solutions. STRAUB emphasizes high vertical integration, building its own machines and tools in-house, and holds ISO 9001:2015 certification. The firm's competitive positioning rests on its proprietary hydroforming technology, capital-intensive in-house production capability, and rapid delivery times (10 days versus an industry-standard 10 weeks).

Name

Straub

Legal name

STRAUB KG

Website

https://straub.de.com

Company type

Private

Founded year

1978

Operating status

Operating

Headcount range

101–250 employees

Short description

STRAUB KG is a German family-owned manufacturer of stainless steel manifolds for heating and cooling systems, serving B2B industrial partners via proprietary hydroforming technology across two German production sites.

Ownership category

akta.pro rank

Product category

Stainless Steel Manifolds for Heating and Cooling Systems

NAICS

Heating Equipment (except Warm Air Furnaces) Manufacturing (333414), Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing (33341), Other Metal Valve and Pipe Fitting Manufacturing (332919), Fabricated Pipe and Pipe Fitting Manufacturing (332996), Metal Valve Manufacturing (33291)

SIC

Heating Equip, Except Elec & Warm Air; & Plumbing Fixtures (3430), Heating Equipment, Except Electric & Warm Air Furnaces (3433), Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585), Industrial Instruments For Measurement, Display, And Control (3823)

akta.pro primary industry

Heat Exchangers, Coils & Hydronic HVAC Components (IMADANAF)

akta.pro secondary industry

Pneumatic Components (FRLs, Cylinders, Valves) (IMAHAGAC)

Keywords

• Stainless steel manifolds
• Heating distribution systems
• Floor heating manifolds
• Hydraulic balancing controls
• Manifold cabinets

Headquarters

HQ city

Bad Überkingen

HQ country

Germany

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Stainless Steel Manifold Systems: STRAUB generates revenue through the manufacture and sale of customized stainless steel manifold solutions including heating circuit manifolds, floor heating manifolds, sanitary manifolds, and industrial manifolds. The company also sells complementary products including control systems, flowmeters, and manifold cabinets. Products are sold directly to industry partners with individualized development and production services.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

STRAUB KG manufactures and sells customized stainless steel manifold solutions for heating and cooling systems. Core offerings include stainless steel manifolds (radiator and floor heating variants), the AI-powered EGO Adaptive Flow Controller, patented Regolux flowmeters, modular control systems, and manifold cabinets. Products are produced in-house using proprietary hydroforming technology and sold directly to industry partners across sanitary, heating, and industrial applications.

Product overview

STRAUB is a German manufacturer offering individual manifold solutions for heating and cooling systems, consisting of five core product lines: Stainless Steel Manifolds (Type HK, FBH-S, FBH-R variants for radiators and floor heating), the EGO® Adaptive Flow Controller (AI-powered autonomous hydraulic balancing), Regolux® Flowmeters (patented flow measurement with memory function), Control Systems (modular fixed-value and weather-related control), and Manifold Cabinets (flush-mounted and surface-type housings). The product portfolio is unified by stainless steel construction using proprietary hydroforming technology, with all components designed for seamless integration from development to series production in Germany.

Differentiator

Problem solved

Functional benefit

Brands

• REGOLUX®: Flowmeter for hydraulic adjustment and shut-off of floor heating circuits with memory function and display, meeting EN norm 1264-4.
• EGO®

Products and services

• Stainless Steel Manifolds STRAUB stainless steel manifolds for radiant heating and cooling systems, available in multiple variants including Type HK (radiator connection), Type FBH-S (floor heating control valves), Type FBH-R (with flowmeter), sanitary manifolds, and industrial manifolds. Manufactured using proprietary hydroforming technology with up to 70% material savings compared to brass alternatives.
• EGO Adaptive Flow Controller AI-powered intelligent flow controller for automatic hydraulic balancing in heating and cooling systems. Plug-and-play solution with autonomous AI-driven valve positioning that requires no commissioning, parameterization, routers, gateways, or app control. Uses sensors and microchip technology to continuously calculate correct temperature spread and valve positions.
• Regolux Flowmeter Patented flowmeter for hydraulic adjustment and shut-off of floor heating circuits. Features memory function and display, available in forward and return flow versions with flow volumes in l/m or gpm. Meets EN 1264-4 European norm for hot-water floor heating systems.
• Control Systems

Quantifiable outcome

• Up to 70% raw material savings compared to brass manifolds
• +3 more outcomes

Named customers3 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability2 records

Feature4 records

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Regional players

• Viega: German family-owned manufacturer of plumbing and heating installation technology including press systems, manifolds, and drinking-water distribution. Comparable to STRAUB as a German Mittelstand specialist serving sanitary and heating installers, though with a broader pipe-fitting focus.

Broad incumbents

• Danfoss: Danish global leader in heating, cooling, and drives solutions with a broad HVAC component portfolio including balancing valves, actuators, and manifold systems. Comparable to STRAUB in the heating-controls and balancing space, but at significantly larger scale.
• Uponor: Finnish manufacturer of plumbing and heating solutions including underfloor heating manifolds and controls for residential and commercial buildings. Comparable to STRAUB in floor-heating manifold and installer-channel overlap, with broader pipe-system portfolio.
• IMI International (IMI plc): UK-listed engineered flow control group with strong presence in hydronic balancing, HVAC, and building services. Comparable to STRAUB through its balancing valves and flow-control product overlap, but operates at a much larger scale across multiple industrial segments.
• Honeywell International: Global industrial conglomerate with a Building Technologies portfolio covering HVAC controls, balancing valves, and building automation. Comparable to STRAUB through its hydronic balancing and HVAC controls overlap, but at vastly greater scale across the full smart-building stack.
• Watts Water Technologies: US-listed global manufacturer of plumbing, heating, and water-quality products including manifolds, valves, and flow control. Comparable to STRAUB as a much larger incumbent in the same hydronic component categories with broader geographic reach.
• Rehau: German family-owned polymer and building solutions group with significant activity in underfloor heating, radiator connection systems, and plumbing installations. Comparable to STRAUB in floor-heating and radiator-connection manifolds serving the European installer market.

Direct peers

• Caleffi: Italian manufacturer of components for heating, cooling, and plumbing systems, including stainless steel manifolds, hydraulic balancing devices, and flow control products. Comparable to STRAUB as a European specialist in hydronic distribution and balancing components.
• Giacomini: Italian manufacturer of heating and plumbing components with a strong manifold and underfloor heating portfolio. Comparable to STRAUB in product scope (heating manifolds, controls, balancing valves) and European installer customer base.
• Oventrop: German manufacturer of heating and plumbing components including manifolds, balancing valves, and controls for residential and commercial buildings. Closest comparable to STRAUB given the German Mittelstand origin, manifold focus, and B2B installer channel overlap.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

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 Straub