Mueller

What Mueller does

Paul Mueller Company is a US-incorporated, publicly traded (OTC: MUEL) manufacturer of stainless steel tanks and processing equipment founded in 1940 and headquartered in Springfield, Missouri, with a wholly-owned European subsidiary, Mueller B.V., in Groenlo, Netherlands, and additional manufacturing and operations in Osceola, Iowa; Gelsenkirchen, Germany; and Vietnam. It designs and builds custom-engineered milk cooling tanks, silos, processing tanks, heat exchangers, and chemical processing equipment used by dairy farms, dairy processors, breweries, food and beverage producers, chemical companies, and pharmaceutical manufacturers across more than 100 countries through a network of authorized dealers in 50+ countries.

The company's competitive position rests on proprietary platforms, including Temp-Plate® dimple plate heat transfer surfaces, Accu-Therm® plate heat exchangers, Fre-Heater® heat recovery systems, MilkGuard milk monitoring and cleaning data systems, and E-Star® R-290 natural refrigerant cooling units. It holds an extensive certification portfolio — ASME Section VIII, PED/CE Mark Category II and III, National Board, 3-A Sanitary, ISO 5708, EN 1372, and country-specific regimes in Canada, China, Switzerland, and Vietnam — that anchors its position in regulated pressure vessel and sanitary dairy equipment.

Revenue is generated through one-time capital equipment sales, custom-engineered project delivery with installation services, and recurring aftermarket activities including spare parts, service, and milk tank rental in the Benelux market. Go-to-market combines direct enterprise field sales across regional export teams, an authorized dealer network, and channel partnerships including the 2019 Lely agreement that distributes Mueller tanks and heat recovery equipment into Lely Centers across Europe and Asia/Pacific. Operational milestones include the 2018 consolidation of four Dutch facilities into a new €17 million Groenlo factory and a leadership transition at Mueller B.V. in January 2022.

Name

Mueller

Legal name

Paul Mueller Company

Website

https://nl.paulmueller.com

Company type

Public

Founded year

1940

Operating status

Operating

Headcount range

101–250 employees

Short description

Paul Mueller Company, founded 1940 and publicly traded on OTC under MUEL, is a US-headquartered manufacturer of stainless steel tanks, heat exchangers, and processing equipment serving dairy farms, processors, breweries, food, chemical, and pharmaceutical customers across more than 100 countries through a 50+ country dealer network.

Ownership category

akta.pro rank

Product category

Stainless Steel Process Equipment

NAICS

Power Boiler and Heat Exchanger Manufacturing (332410), Food Product Machinery Manufacturing (333241)

SIC

Refrigeration & Service Industry Machinery (3580), Special Industry Machinery (No Metalworking Machinery) (3550), Fabricated Plate Work (Boiler Shops) (3443)

akta.pro primary industry

Heat Transfer Equipment (Heat Exchangers, Boilers, Condensers) (IMAHAEAC)

akta.pro secondary industries

Milk Cooling, Storage & Transfer Equipment (Bulk Tanks, Plate Coolers, Pumps) (AFAAAIAC), Boilers, Furnaces & Process Heating Equipment (IMAHAKAD)

Keywords

• Stainless steel processing
• Dairy processing equipment
• Brewery equipment
• Heat transfer systems
• Sanitary process equipment

Headquarters

HQ city

Springfield

HQ country

United States

HQ region

North America

Offices5 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Equipment Manufacturing & Sales: Design, manufacture, and sale of stainless steel processing equipment (milk cooling tanks, silos, fermenters, heat exchangers, serving beer tanks, process tanks, storage tanks) as one-time capital purchases. Equipment sold to dairy farms, breweries, food processors, chemical plants, and pharmaceutical companies worldwide.
2. Aftermarket Services, Parts & Rentals: Service, repair, maintenance, spare parts supply, and milk tank rental services. Global service operations and milk tank rental in the Netherlands.
3. Equipment Transportation & Installation: Logistics planning, transport coordination, crane lifting, and on-site installation of tanks and equipment at customer facilities.

Pricing tiers

Go-to-market motion1 record

Distribution channels5 records

Marketing channels6 records

Core offering

Paul Mueller Company manufactures stainless steel processing equipment for dairy, brewing, food, chemical, and pharmaceutical industries. Its product line includes milk cooling tanks and silos, brewery fermenters and serving tanks, plate-style heat exchangers, condensing units, and the MilkGuard monitoring system. The company also supplies engineered sanitary process systems and heat recovery solutions to industrial processors worldwide.

Product overview

Paul Mueller Company is a manufacturer of stainless steel tanks and processing equipment operating across multiple industries (dairy farming, dairy processing, food, beverage, brewing, and chemical). The product portfolio centers on two core technology areas: (1) Milk cooling and storage solutions for dairy farms including milk cooling tanks, condensing units, MilkGuard monitoring systems, heat recovery systems, and solar cooling; and (2) Heat transfer technology including Temp-Plate® dimple plate heat transfer surfaces and Accu-Therm® plate heat exchangers. The company also produces fermentation tanks, bright beer tanks, serving beer tanks, food processing equipment, and chemical processing equipment. Products are available as standard models or custom-engineered to customer specifications. Services include tank rental, equipment transportation, and milk collection center development for emerging markets.

Differentiator

Problem solved

Functional benefit

Brands

• Mueller: Primary brand for milk cooling and storage solutions, processing equipment, and heat transfer products
• Accu-Therm
• Temp-Plate
• Fre-Heater
• MilkGuard
• E-Star

Products and services

• Milk cooling tanks and silos Stainless steel milk cooling tanks and storage silos designed for on-farm and plant-level dairy operations; used by dairy farmers and milk processors to cool and store raw milk under sanitary conditions.
• Temp-Plate heat transfer equipment Plate-style heat exchangers and heat transfer surfaces using Mueller's proprietary Temp-Plate technology, used by industrial processors for heating and cooling applications across dairy, food, chemical, and pharmaceutical processes.
• Accu-Therm heat transfer equipment Heat transfer systems based on Accu-Therm technology, integrated into Mueller's stainless steel processing equipment for industrial customers requiring precise thermal control.
• Brewery fermentation and serving tanks Stainless steel brewery fermenters, bright beer tanks, and serving tanks for commercial breweries and brewpubs, providing sanitary fermentation, conditioning, and serving capacity.
• Condensing units Stainless steel condensing units used in industrial refrigeration and process cooling applications for dairy, brewing, and other processing customers.
• MilkGuard monitoring system Monitoring and data system for milk cooling tanks and dairy operations, providing visibility into temperature, tank status, and operational performance for dairy farmers and processors.
• Fre-Heater heat recovery Heat recovery unit that captures waste heat from milk cooling refrigeration to pre-heat water for dairy operations, reducing energy consumption for dairy farmers and processors.
• Sanitary process equipment for chemical and pharmaceutical industries Custom-engineered stainless steel process vessels, tanks, and equipment built to sanitary specifications for chemical and pharmaceutical manufacturers requiring corrosion-resistant, sanitary process hardware.

Quantifiable outcome

• 20% faster brewing process achieved through optimized plate heat exchanger configuration at Anthem Brewery
• +3 more outcomes

Named customers14 records

Segments6 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

Six partnerships are on record, tiered core and minor.

• LelycoreChannel Partner/ Reseller/ Distributor · 29 May 2019Lely and Mueller B.V. signed an agreement on May 29, 2019 in Maassluis, Netherlands to include Mueller milk tanks, silos, Fre-Heaters, and condensing units in the Lely portfolio. This gives Lely a complete cooling proposition for robotic milking customers. Mueller products are distributed through Lely's network of regional Lely Centers across Europe and Asia/Pacific. Lely employees underwent training on Mueller products with phased rollout starting May 29, 2019. While Mueller and Lely had an informal partnership for decades, this formal agreement creates a structured channel distribution relationship.
• World Bicycle ReliefminorStrategic or Co-development PartnerWorld Bicycle Relief and Paul Mueller Company collaborate to improve milk cooling in Africa by enhancing milk collection, aggregation centers, and farm storage. World Bicycle Relief supplies Buffalo cargo bikes to African dairy farmers enabling reliable transport of milk to collection centers. The partnership addresses the challenge of milk spoilage due to unreliable transport over 3-5 mile distances from farm to collection point. Over 400 Buffalo bikes were supplied in Palabana and 600+ in Zambia through dairy cooperatives.
• BoP Inc. (BoP Innovation Center)minorStrategic or Co-development PartnerBoP Inc. partnered with Mueller to develop autonomous solar-powered milk cooling units for small-scale dairy farmers in Ethiopia lacking reliable electricity access. The goal is to enable farmers to store, deliver, and sell higher quality milk, potentially doubling their income. Mueller's expertise in stainless steel milk tanks was applied to develop a small-scale cooling installation suitable for off-grid operations.
• SimgasminorStrategic or Co-development PartnerSimgas, which builds small biogas installations for African households, collaborated with Mueller to develop a second prototype of a biogas-powered milk cooler in 2013. This followed the first solar-powered prototype developed with BoP Inc., expanding the range of renewable energy options for autonomous milk cooling in Ethiopia.
• DEG Engineering (Germany)coreTechnology or IntegrationDEG Engineering specializes in custom thermal process solutions and has used Mueller's Temp-Plate technology as a key component for decades. DEG values Mueller as a reliable, consistent supplier of specialty Temp-Plate heat transfer surfaces. The partnership is described as a long-standing, strategic relationship where both companies implement successful thermal solutions together. DEG credits Mueller's expertise with helping them maintain their strong reputation through high-quality products.
• FrieslandCampinaminorChannel Partner/ Reseller/ DistributorFrieslandCampina is listed as a partner on the Mueller Netherlands website, indicating an ongoing commercial relationship for dairy processing equipment or cooling solutions. Specific details of the partnership scope are not detailed in the available sources.

Scale indicators8 records

Recent moves8 records

Expansion highlights6 records

Direct peers

• Kelvion: Global manufacturer of plate heat exchangers, shell-and-tube heat exchangers, and industrial cooling equipment. Directly comparable to Mueller's Accu-Therm plate heat exchangers and refrigeration equipment.
• Alfa Laval: Leading global supplier of heat exchangers (gasketed, brazed, welded plate) and dairy processing equipment. Directly competes with Mueller's Temp-Plate and Accu-Therm product lines across dairy, brewing, and chemical applications.
• BouMatic: Manufacturer of dairy milking and cooling equipment including bulk milk tanks and plate coolers. Direct competitor in the global milk cooling tank market where Mueller is one of the largest suppliers.
• Tranter: Specialized manufacturer of plate heat exchangers (gasketed, welded, brazed) for HVAC, dairy, and industrial applications. Direct competitor to Mueller's Accu-Therm plate heat exchanger product line.
• GEA Group: Global manufacturer of dairy processing equipment, separators, and heat exchangers. Directly comparable to Mueller's dairy processing tanks and Accu-Therm plate heat exchangers, with substantially larger scale and broader portfolio.
• API Heat Transfer: Manufacturer of heat exchangers and thermal management equipment for industrial and dairy markets. Comparable to Mueller's heat transfer technology stack and serves overlapping OEM and chemical customers.
• Tetra Pak: Major dairy processing equipment and packaging solutions provider. Overlaps with Mueller's dairy processing tanks, silos, and processing equipment serving enterprise dairy customers like Leprino and FrieslandCampina.
• DeLaval: Dairy farming equipment manufacturer covering milking, cooling, and herd management. Direct peer for Mueller's bulk milk cooling tanks and MilkGuard monitoring systems, with overlap in robotic milking markets.

Broad incumbents

• SPX FLOW: Broad industrial flow and heat transfer equipment manufacturer. Overlaps with Mueller's plate heat exchangers, processing tanks, and dairy/food processing equipment, but offers a wider product portfolio across multiple industries.

Others

• Lely: Manufacturer of robotic milking systems and dairy farm automation. While Mueller is now a channel partner for Lely, Lely itself addresses overlapping dairy farm customers with complementary (rather than directly competing) product lines.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/muellercompany
• YouTubeyoutube.com/user/wearemueller
• Facebookfacebook.com/paulmuellercompanynl
• LinkedInlinkedin.com/company/mueller-sales

Compliance6 records

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries1 record

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 Mueller