Great Lakes Mechanical
Great Lakes Mechanical is a Greenville, Wisconsin-based full-service mechanical contractor specializing in design, fabrication, and installation of dust collection, ducting, tanks, process piping, structural, and HVAC systems for industrial clients across power, metal casting, food, chemical, and pulp and paper sectors.
- Company typePrivate
- Founded-
- HeadquartersGreenville, United States
- Headcount11–50
- GTM typeB2B
- OfferingServices
What Great Lakes Mechanical does
Great Lakes Mechanical is a privately held, full-service mechanical contractor headquartered in Greenville, Wisconsin, that designs, fabricates, and installs industrial mechanical systems for clients across multiple heavy-industrial verticals. Its core service offering spans seven lines: tank and pressure vessel fabrication, ventilation and dust collection systems, process piping and instrumentation, platforms and ladders, structural fabrication and installation, HVAC, and in-house SolidWorks/CAD/Flow Simulation design. The firm holds ASME S&U and National Board R certifications, allowing it to perform code-stamped pressure vessel work and registered repairs that many smaller mechanical contractors cannot pursue.
The company runs a 31,000 sq ft fabrication facility equipped with 10-ton overhead cranes at 26-foot clearance, drive-through 16-foot overhead doors, HD CNC plasma cutting, hydraulic press brake, plate rolls, and full multi-process welding capability (TIG, MIG, FCAW, GMAW, SAW, SMAW). It describes itself as a 'highly mobile organization' that blends in-facility fabrication with field installation, serving clients nationwide. The customer list includes blue-chip industrial buyers such as Waupaca Foundry, Nestle, Cargill, Georgia Pacific, Kimberly Clark, WE Energies, Cliffs Natural Resources, and Marshfield Clinic, across verticals including power generation, metal casting, food and beverage, pulp and paper, chemical, mining, healthcare, and government.
Revenue is generated primarily through project-based, custom-quoted professional services contracts with multi-year cadences at enterprise scale. Pricing is private and tailored to each project specification, with no public rate cards. The company markets primarily through its website quote-request workflow and a LinkedIn presence, with repeat and referral business from established industrial accounts doing the bulk of demand generation. No funding, M&A, or public-market activity is disclosed; the firm operates as an independent private contractor.
Great Lakes Mechanical firmographics
Firmographics- Name
- Great Lakes Mechanical
- Legal name
- Great Lakes Mechanical
- Website
- https://glmechanical.com
- Company type
- Private
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Great Lakes Mechanical is a Greenville, Wisconsin-based full-service mechanical contractor specializing in design, fabrication, and installation of dust collection, ducting, tanks, process piping, structural, and HVAC systems for industrial clients across power, metal casting, food, chemical, and pulp and paper sectors.
- Ownership category
- akta.pro rank
Great Lakes Mechanical industry classification
Industry- Product category
- Mechanical Contracting Services
- NAICS
- Industrial Machinery Manufacturing (3332)
- SIC
- General Industrial Machinery & Equipment (3560), Special Industry Machinery, Nec (3559)
- akta.pro primary industry
- Industrial/Process Piping & Mechanical Contracting (IMAFALAG)
Keywords
Where Great Lakes Mechanical is headquartered
LocationHeadquarters
- HQ city
- Greenville
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
Great Lakes Mechanical business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Supply Chain, Operations, Infrastructure, Marketing or Sales
Revenue model
- Industrial Fabrication and Installation Services: Project-based revenue generated through design, fabrication, and installation of dust collection systems, ducting, tanks, custom structural, process piping, and HVAC systems for industrial clients. Services include both in-facility fabrication and field installation by experienced personnel.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Custom project-based pricing |
Go-to-market motion1 record
Distribution channels1 record
Marketing channels2 records
Great Lakes Mechanical product offering
Product offeringCore offering
Great Lakes Mechanical is a full-service mechanical contractor that designs, fabricates, and installs industrial mechanical systems including dust collection, ducting, tanks and pressure vessels, custom structural steel, process piping and instrumentation, and HVAC systems. The company blends in-facility fabrication in a 31,000 sq ft Greenville, WI shop with field installation by experienced personnel for projects nationwide.
Product overview
Great Lakes Mechanical is a full-service mechanical contractor providing an integrated portfolio of fabrication and installation services. The core offering includes Tank & Pressure Vessel Fabrication, Ventilation & Collection, Process Piping & Instrumentation, Structural Fabrication & Installation, HVAC, and Platform/Ladders/Specialty Fabrication. Supporting these services is the Solid Works, Flow Simulation & CAD capability, which enables in-house design-to-fabrication workflow. The company operates a 31,000 sq ft facility with equipment including CNC plasma cutting, welding machines, hydraulic press brakes, and plate rolls. Services are delivered through a combination of shop fabrication and field installation, serving industries including power, metal casting, food, petro-chemical, pulp and paper, and chemical.
Differentiator
Problem solved
Functional benefit
Products and services
- Tank & Pressure Vessel Fabrication Fabrication of pressure vessels and tanks in carbon steel, stainless, or abrasion resistant steel, available in round, rectangular, or square shapes. ASME S&U stamps and National Board R Certification are maintained. Targeted at industrial clients needing certified pressure equipment.
- Ventilation & Collection Duct fabrication, flow simulations, hood fabrication, cyclones, classifiers, dust collectors, material conveyance, trim systems, and complete ducting installation for industrial facilities. Designed to supply, return, and exhaust air efficiently.
- Process Piping & Instrumentation Process piping systems including power piping, tubing and instrumentation, paper industry process piping, acorn pipe spooling, and sanitary grade piping for food and dairy industries. Serves industrial facilities needing detailed process pipe routing.
- Platforms, Ladders, Specialty Fabrication & Installation Fabrication and installation of platforms, ladders, service platforms, catwalks, and custom fabrications in steel, stainless steel, aluminum, or exotic materials. Engineered for safe personnel access around facility infrastructure.
- SolidWorks, Flow Simulation & CAD In-house SolidWorks and CAD design capabilities including 3D modeling and flow simulation to streamline projects from design to fabrication and installation. Provides optimized design visualization and airflow analysis.
- Structural Fabrication & Installation Structural steel fabrication including cut, bent, assembled, and installed steel structures such as mezzanines, handrails, stairs, pipe supports, and mechanical bridges in steel, stainless steel, aluminum, galvanized, or alloy materials.
- HVAC Heating, ventilation, and air conditioning systems including air handler installations, rooftop units, exhaust fans, boilers, air distribution, hydronics piping, refrigeration piping, and chillers/pumps for industrial facilities.
Companies that use Great Lakes Mechanical
Customer profileNamed customers24 records
Segments10 records
Ideal customer profiles4 records
Great Lakes Mechanical technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature3 records
Great Lakes Mechanical partnerships and signals
Strategic signalScale indicators3 records
Recent moves6 records
Expansion highlights3 records
Great Lakes Mechanical competitors and assessment
Company assessmentDirect peers
- Southland Industries: Mechanical contractor providing design, fabrication, and installation of HVAC, process piping, and plumbing systems for industrial and commercial clients. Overlap is strongest in integrated design-to-installation workflows and regulated industrial piping.
- Limbach Holdings: Public mechanical contractor providing HVAC, plumbing, process piping, and building systems for industrial and institutional clients. Closely comparable in service mix (process piping, fabrication, installation) and project-based revenue model, with overlapping verticals in healthcare, food, and power.
- Shambaugh & Son: Mechanical and process piping contractor (now part of EMCOR Group) serving food, dairy, power, chemical, and industrial clients. Highly comparable in process piping, ASME-coded pressure vessel work, and industrial fabrication scope.
- IES Holdings: Provider of electrical and mechanical services including process piping, fabrication, and field installation for industrial customers. Comparable in project-based industrial mechanical contracting and ASME-coded work.
- U.S. Engineering Company: Mid-sized mechanical contractor with in-house fabrication and field installation across process piping, HVAC, plumbing, and structural. Comparable service breadth and similar reliance on industrial and institutional end markets.
Broad incumbents
- APi Group: Diversified specialty contractor and safety services provider with industrial services exposure. Comparable as a broad industrial services platform, though GLM's portfolio is more narrowly focused on fabrication and mechanical installation.
- MYR Group: Specialty contractor providing electrical construction and mechanical services for transmission, industrial, and commercial markets. Comparable in industrial mechanical contracting scope, particularly power and heavy-industrial customers.
- Comfort Systems USA: National mechanical contractor focused on HVAC, plumbing, and building automation for commercial and industrial customers. Comparable in HVAC and process piping installation, though heavier weighting to commercial/institutional than industrial.
- Quanta Services: Large infrastructure services company serving electric power, oil & gas, and renewables with mechanical and structural capabilities. Comparable where project scope involves industrial structural fabrication, piping, and energy facility work.
- EMCOR Group: Largest publicly traded mechanical and electrical construction services company in the US, offering process piping, HVAC, and industrial fabrication through subsidiaries like Shambaugh & Son. Overlaps with GLM's core services but at vastly larger scale and broader portfolio.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights6 records
Customer concentration
Great Lakes Mechanical social profiles
Digital presenceGreat Lakes Mechanical financial estimates
Financial estimateRevenue estimate
Valuation estimate
Great Lakes Mechanical leadership team
Management profileNumber of profiles
Great Lakes Mechanical funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Great Lakes Mechanical M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Great Lakes Mechanical
What does Great Lakes Mechanical do?
Great Lakes Mechanical is a full-service mechanical contractor that designs, fabricates, and installs industrial mechanical systems including dust collection, ducting, tanks and pressure vessels, custom structural steel, process piping and instrumentation, and HVAC systems. The company blends in-facility fabrication in a 31,000 sq ft Greenville, WI shop with field installation by experienced personnel for projects nationwide.
Is Great Lakes Mechanical a public or private company?
Great Lakes Mechanical is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Great Lakes Mechanical founded?
Great Lakes Mechanical was founded in -1. It employs 11 to 50 people.
Where is Great Lakes Mechanical based?
Great Lakes Mechanical is headquartered in Greenville, United States, in the North America region.
How does Great Lakes Mechanical make money?
One revenue line is on record: industrial Fabrication and Installation Services.
Who are Great Lakes Mechanical's main competitors?
Direct peers on record are Southland Industries, Limbach Holdings, Shambaugh & Son, IES Holdings and U.S. Engineering Company. Broad incumbents are APi Group, MYR Group, Comfort Systems USA, Quanta Services and EMCOR Group.
Does Great Lakes Mechanical have an API?
No public API is recorded for Great Lakes Mechanical.
What industry is Great Lakes Mechanical in?
Great Lakes Mechanical's product category is Mechanical Contracting Services. Its primary akta.pro industry code is IMAFALAG, Industrial/Process Piping & Mechanical Contracting. Its NAICS code is 3332 and its SIC code is 3560.