Tweet/Garot Mechanical

What Tweet/Garot Mechanical does

Tweet/Garot Mechanical, Inc. is a 128-year-old, family-owned mechanical contracting firm headquartered in De Pere, Wisconsin, that designs, engineers, fabricates, and installs plumbing, HVAC, process piping, industrial ventilation, sheet metal, and building automation systems for commercial, industrial, and institutional clients. The firm operates across approximately 10 end-markets with primary concentration in healthcare, food & beverage processing, and pulp & paper, supported by 155,000+ square feet of manufacturing space and a 900+ employee workforce including 500+ skilled union tradesworkers. Core technology includes the proprietary Stratus cloud-based project lifecycle management platform, Field Orderz for digitizing field sketches, BIM-based virtual construction using Autodesk Revit with robotic total station layout, modular prefabrication with a library of nearly 150,000 standard components, and Tridium-based building automation systems.

The company generates revenue through project-based mechanical construction contracts (typical project size $400K to $6.97M), design/build and design/assist integrated project delivery, custom industrial process equipment fabrication (including the G.J. Olney fruit and vegetable processing line acquired in 2024), and recurring mechanical service and building automation contracts. Customer acquisition is sales-led through direct enterprise engagement, design partnerships with architects and consulting engineers, and long-standing general contractor relationships with firms such as Boldt and Miron Construction. The firm is licensed to operate in 40+ states and serves customers including Bellin Health, Aspirus, Froedtert ThedaCare, Green Bay Packers, Nestle, Sappi Fine Paper, and WestRock, with operations across Wisconsin, Michigan (Upper Peninsula and Traverse City), and Arizona (Phoenix).

Growth has been driven by a programmatic acquisition strategy, with five completed or announced transactions since 2020 (Mechanical Inc., Certified Inc., G.J. Olney, Temperature Control, and Prime Specialty Contracting) extending geographic reach into Michigan's Upper Peninsula and Phoenix, and adding complementary product lines in food processing equipment and building automation services. The firm differentiates through safety performance (EMR of 0.65-0.71, 13-time Wisconsin Safety Council award winner), prefabrication capabilities that shift 40% of plumbing and piping hours to shop fabrication, and a vertically integrated delivery model spanning design through installation and ongoing service.

Name

Tweet/Garot Mechanical

Legal name

Tweet/Garot Mechanical, Inc.

Website

https://tweetgarot.com

Company type

Private

Founded year

1897

Operating status

Operating

Headcount range

501–1,000 employees

Short description

Tweet/Garot Mechanical is a 128-year-old, family-owned mechanical contracting firm headquartered in De Pere, Wisconsin, that designs, engineers, fabricates, and installs HVAC, plumbing, process piping, and building automation systems for commercial, industrial, and institutional clients across healthcare, food & beverage, and pulp & paper markets in 40+ U.S. states.

Ownership category

akta.pro rank

Product category

Mechanical Contracting Services

NAICS

Other General Purpose Machinery Manufacturing (3339)

SIC

Industrial & Commercial Fans & Blowers & Air Purifing Equip (3564)

akta.pro primary industry

Dampers, Louvers & Ventilation Controls (IMADANAD)

akta.pro secondary industry

Appliance Hookup & Utility Connection (Water/Gas/Electric) (HSAGANAD)

Keywords

• Mechanical contracting services
• HVAC installation
• Industrial process piping
• Building automation systems
• Plumbing construction services

Headquarters

HQ city

De Pere

HQ country

United States

HQ region

North America

Offices9 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Mechanical Construction Services: Design, engineering, fabrication, and installation of plumbing, heating, air conditioning, and ventilation systems for commercial and industrial clients. Project-based contracts ranging from new construction to renovations.
2. Process Equipment & Fabrication: Industrial process equipment design and manufacturing, custom equipment fabrication, modular construction, and food & beverage processing equipment. Includes G.J. Olney vegetable and fruit processing equipment line.
3. Mechanical Service & Maintenance: 24/7 emergency service, preventive maintenance agreements, chiller and boiler service, building automation services. Ongoing service contracts with facility management.
4. Design/Build and Design/Assist Services: Integrated project delivery methods providing single source responsibility for mechanical systems. Engineering services with real-time cost estimates and energy analysis.

Go-to-market motion3 records

Distribution channels3 records

Marketing channels5 records

Core offering

Tweet/Garot Mechanical provides design, engineering, fabrication, and installation of plumbing, heating, air conditioning, ventilation, process piping, custom process equipment, and building automation systems for commercial, industrial, and institutional clients. The firm also delivers 24/7 mechanical service, preventive maintenance, building automation, indoor air quality solutions, dust collection systems, and modular prefabrication through in-house manufacturing and union tradespeople. It serves customers across healthcare, food & beverage, pulp & paper, power, renewable energy, wood products, manufacturing, office, education, and sports & entertainment markets.

Product overview

Tweet Garot Mechanical is a mechanical contracting firm offering integrated services including design & engineering, mechanical construction, process equipment fabrication, and building services. The company operates across Wisconsin, Upper Michigan, and nationally with licensed operations in 40+ states. Core service portfolio includes Process Piping, HVAC, Industrial Ventilation, Sheet Metal, Plumbing, Food & Beverage Processing Equipment (including G.J. Olney product line), Building Automation Services (Tridium-based), Indoor Air Quality Solutions, Dust Collection Systems, and Mechanical Services. The company differentiates through proprietary technology platforms including Stratus (cloud-based project lifecycle management) and Field Orderz (field sketching digitization), alongside prefabrication capabilities with over 155,000 square feet of manufacturing space. Recent acquisitions include Prime Specialty Contracting (Upper Peninsula, 2026), Temperature Control (Traverse City, 2025), and G.J. Olney (food processing equipment, 2024). Markets served span Healthcare, Food & Beverage, Pulp & Paper, Power, Renewable Energy, Wood Products, Manufacturing, Office, Education, Sports & Entertainment, and Lodging.

Differentiator

Problem solved

Functional benefit

Brands

• Olney By Tweet Garot: G.J. Olney product line for vegetable and fruit processing equipment including specialized equipment for washing, cleaning and grading fruits and vegetables

Quantifiable outcome

• Shifted 40% of plumbing and piping hours to shop prefabrication
• +4 more outcomes

Named customers16 records

Segments10 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Eight partnerships are on record, tiered core and minor.

• Prime Specialty ContractingcoreStrategic or Co-development Partner · 1 February 2026Acquisition of Prime Specialty Contracting with offices in Marquette and Escanaba, Michigan. Founder Cory Bushong remains with company leading approximately 90 employees. Establishes Tweet Garot as leading mechanical contractor in Michigan's Upper Peninsula.
• Temperature Control, Inc.coreStrategic or Co-development Partner · 31 October 2025Acquisition of Temperature Control, a mechanical service and building automation provider in Traverse City, Michigan. Marks strategic expansion into lower Michigan with Patrick Law positioned to lead team.
• Greater Green Bay Community FoundationminorStrategic or Co-development Partner · 17 July 2025Co-invest partnership to launch pilot program designed to reduce homelessness in Brown County. Program leverages existing affordable housing and delivers wraparound supportive services. Represents Tweet Garot's community investment initiative.
• G.J. Olney, Inc.coreStrategic or Co-development Partner · 16 September 2024Acquisition of G.J. Olney, a vegetable and fruit processing equipment manufacturer. Expands food processing equipment portfolio with equipment for washing, cleaning and grading fruits and vegetables.
• Local 400 UnioncoreStrategic or Co-development PartnerLongstanding relationship with Local 400 union for apprenticeship programs and workforce development. Jointly inspires next generation of plumbers and steamfitters through events, youth apprenticeships, and Women in Pipe Trades programs.
• HGA ArchitectsminorImplementation/ SI/ Consulting PartnerHealthcare campus project partnership with HGA and Miron Construction for implementing vacuum waste system. Tweet Garot provided mechanical expertise for unconventional plumbing solution.
• BoldtcoreImplementation/ SI/ Consulting PartnerLong-standing general contractor partnership on multiple healthcare projects including Aspirus Micro Hospital and Bellin Health facilities. Project collaboration on modular construction.
• Miron ConstructioncoreImplementation/ SI/ Consulting PartnerGeneral contractor partnership on Bay Mills Hotel and Casino expansion and Lambeau Field projects. Long-standing relationship for commercial and healthcare projects.

Scale indicators12 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• Comfort Systems USA: Public NYSE-listed mechanical/HVAC contractor providing design, engineering, and installation services across commercial and industrial markets. Most direct comparable in business model and service mix, though significantly larger and geographically diversified.
• Limbach Holdings: Public mechanical contractor specializing in HVAC, plumbing, and building controls with strong owner-direct relationships. Closest peer by revenue scale and operating model, with similar design-build and service capabilities.
• Shambaugh & Son: Large private mechanical contractor (plumbing, HVAC, process piping) headquartered in the Midwest. Directly comparable by service portfolio, regional concentration, and food/beverage and industrial verticals.
• John W. Danforth Company: Private mechanical and energy services contractor serving commercial, industrial, healthcare, and institutional markets. Similar full-service mechanical contracting model with comparable vertical mix and union workforce structure.
• Murphy Company: Private mechanical contractor with design, fabrication, and installation capabilities across HVAC, plumbing, and process piping. Comparable by integrated design-build/fabrication model and industrial verticals.
• Kremer Services: Private Midwest mechanical and electrical contractor offering design-build, fabrication, and 24/7 service. Comparable footprint and service offering to Tweet Garot's mechanical construction and service business.

Broad incumbents

• EMCOR Group: Largest publicly traded mechanical and electrical construction/services firm in the U.S. Operates across HVAC, plumbing, fire protection, and building services with national footprint. Broad incumbent rather than direct specialty competitor.
• APi Group: Public safety, specialty, and industrial services holding company. Has historically included mechanical contracting but operates a much broader services portfolio; serves as a benchmark for valuation rather than direct competition.

Regional players

• Harris Mechanical: Midwestern mechanical contractor providing HVAC, plumbing, and process piping. Comparable in size and service mix but with different regional concentration; useful for benchmarking regional mechanical contractor economics.

Others

• Belair Sitework Services: Regional mechanical/utility contractor. Adjacent rather than directly comparable — useful as a benchmark for regional specialty contractor growth and integration patterns.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/tweetgarot
• LinkedInlinkedin.com/company/tweet-garot-mechanical-inc.

Revenue estimate

Valuation estimate

Number of profiles

Profiles11 records

Subsidiaries6 records

Funding overview

Funding rounds

Investors

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

M&A1 record

Investments

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

Frequently asked questions about Tweet/Garot Mechanical