Tessier’s
Tessier's is a South Dakota-based mechanical contracting firm, founded 1919 and a subsidiary of APi Group, that designs, installs, fabricates, and services HVAC, piping, and refrigeration systems for commercial, agricultural, and industrial customers across South Dakota and Iowa.
- Company typePrivate
- Founded1919
- HeadquartersMitchell, United States
- Headcount101–250
- GTM typeB2B
- OfferingServices
What Tessier’s does
Tessier's is a regional mechanical contracting company founded in 1919 and headquartered in Mitchell, South Dakota, with operating offices in Sioux Falls, Rapid City, Brookings (SD) and Sioux City (IA). It is a subsidiary of APi Group. The company's core offering encompasses heating, ventilation, air-conditioning, refrigeration, temperature control, and piping systems, delivered through project-based mechanical contracting, design-build services, and 24/7 emergency service. It also runs an in-house sheet metal and specialty fabrication shop that produces custom duct work and welding for HVAC and adjacent applications, and through the Midwest Fire & Safety division (joined 2020) it sells and services fire suppression systems, fire extinguishers, and first-aid supplies.
The business operates on quote-based project pricing plus recurring preventative maintenance contracts, with revenue generated through direct field sales to commercial building owners, agricultural operations, and industrial facilities primarily across South Dakota and Iowa. Its value engineering capability — bundling scheduling, budgeting, procurement, drawings review, and alternative HVAC design — is a deliberate differentiator, supported by a workforce that includes trade instructors with practical field experience.
Tessier's reaches the market through a sales-led motion: a website with Request Quote and Schedule Inspection CTAs, LinkedIn and Facebook brand pages, and an in-region field sales team. Pricing is not publicly disclosed, with custom quotes produced for each engagement. The combined portfolio is sold as a single unified mechanical services relationship rather than as a platform-plus-modules architecture.
Tessier’s firmographics
Firmographics- Name
- Tessier’s
- Legal name
- Tessiers
- Website
- https://tessiersinc.com
- Company type
- Private
- Founded year
- 1919
- Operating status
- Operating
- Headcount range
- 101–250 employees
- Short description
- Tessier's is a South Dakota-based mechanical contracting firm, founded 1919 and a subsidiary of APi Group, that designs, installs, fabricates, and services HVAC, piping, and refrigeration systems for commercial, agricultural, and industrial customers across South Dakota and Iowa.
- Ownership category
- akta.pro rank
Tessier’s industry classification
Industry- Product category
- Mechanical Contracting and Commercial HVAC Services
- NAICS
- Plumbing, Heating, and Air-Conditioning Contractors (238220), Plumbing, Heating, and Air-Conditioning Contractors (23822)
- akta.pro primary industry
- HVAC & Refrigeration Contracting (IMAFALAB)
- akta.pro secondary industry
- Chillers, Boilers & Central Plant Operations (BPABACAG)
Keywords
Where Tessier’s is headquartered
LocationHeadquarters
- HQ city
- Mitchell
- HQ country
- United States
- HQ region
- North America
Offices5 records
Markets served
Tessier’s business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Supply Chain, Marketing or Sales, Infrastructure, Others
Revenue model
- Mechanical Contracting Services: Project-based mechanical contracting services including heating, ventilation, air-conditioning, refrigeration, temperature control, and piping systems. Revenue is generated through project-based contracts with commercial, agricultural, and industrial customers.
- HVAC Systems Services: Design, installation, service, and repair of commercial HVAC systems. Includes preventative maintenance services for ongoing revenue from existing installations.
- Sheet Metal and Specialty Fabrication: Custom metal fabrication and specialty welding for commercial, agricultural, and industrial applications, including duct work for HVAC systems.
- Fire Safety Services: Fire suppression systems, fire extinguisher sales and service, and first aid supplies and services through Midwest Fire & Safety division.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Pay-as-you-go | Project-based custom quoting |
Go-to-market motion1 record
Distribution channels1 record
Marketing channels3 records
Tessier’s product offering
Product offeringCore offering
Tessier's provides mechanical contracting services for commercial, agricultural, and industrial customers, including heating, ventilation, air-conditioning, refrigeration, temperature control, piping, and HVAC systems balancing. The company also performs custom sheet metal and duct fabrication, specialty welding, design-and-build value engineering, preventative HVAC maintenance, and (via the Midwest Fire & Safety division) fire suppression, fire extinguisher, and first aid services.
Product overview
Tessier's is a mechanical contracting and commercial HVAC service company operating as a single unified service offering rather than a platform-plus-modules architecture. The company's core portfolio centers on mechanical services including HVAC systems design, installation, service and repair, supplemented by specialty fabrication and welding capabilities, sheet metal and duct fabrication, and preventative maintenance programs. In 2020, the company expanded through acquisition of Midwest Fire & Safety, adding fire suppression systems, fire extinguishers, and first aid services as an integrated division. All services are delivered across multiple South Dakota and Iowa locations, emphasizing value engineering, cost-effective fabrication and installation methods, and technical expertise accumulated since 1919.
Differentiator
Problem solved
Functional benefit
Products and services
- Mechanical Services Mechanical contracting services including heating, ventilation, air-conditioning, refrigeration, temperature control, piping, and HVAC systems balancing for commercial, agricultural, and industrial customers across projects of any size and complexity.
- HVAC Systems Design, installation, service, and repair of commercial heating, ventilation, and air conditioning systems, including 24/7 emergency service availability.
- Design & Build Services Integrated design and construction services that combine value engineering, scheduling, budgeting, procurement strategy, cash flow projection, drawings review, and alternative HVAC design for customer projects.
- Specialty Fabrication & Welding Custom metal fabrication and specialty welding services for commercial, agricultural, and industrial projects, including custom fabrication and duct work for HVAC systems.
- Sheet Metal Fabrication Custom sheet metal fabrication for commercial, agricultural, and industrial applications as part of HVAC system installation.
- Duct Fabrication Custom duct work fabrication for HVAC systems, providing cost-effective fabrication and installation methods.
- Agricultural & Industrial Services Mechanical services tailored for agricultural and industrial facilities, including custom fabrication needs.
- Fire Suppression Systems Fire suppression system sales and services, expanded through the 2020 acquisition of Midwest Fire & Safety.
- Fire Extinguishers & First Aid Fire extinguisher and first aid supplies sales and services, provided through the Midwest Fire & Safety division.
Companies that use Tessier’s
Customer profileSegments3 records
Ideal customer profiles3 records
Tessier’s technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature1 record
Tessier’s partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- Midwest Fire & SafetycoreMidwest Fire & Safety joined Tessiers in 2020, bringing 30 years of experience in fire suppression, fire extinguisher, and first aid sales and services. This partnership expanded Tessiers' service offerings to include comprehensive fire safety services.
Scale indicators2 records
Recent moves6 records
Expansion highlights5 records
Tessier’s competitors and assessment
Company assessmentBroad incumbents
- APi Group: Publicly traded parent company of Tessiers and one of the largest specialty contractor conglomerates in North America, with 200+ subsidiaries across life safety, industrial, and specialty services. Directly comparable as the broader platform under which Tessiers operates, sharing go-to-market patterns and end-market exposure.
- Comfort Systems USA: Publicly traded national HVAC mechanical contracting consolidator with 40+ operating subsidiaries across the U.S. Direct overlap in commercial HVAC installation, service, and mechanical contracting, with a comparable subsidiary-led operating model.
- EMCOR Group: Publicly traded Fortune 500 provider of mechanical and electrical construction, building, and industrial services. Highly comparable as a national mechanical contracting leader competing for the same commercial HVAC and fabrication work that Tessiers performs at a regional level.
Direct peers
- Grunau Company: Mechanical and fire protection contractor headquartered in Wisconsin, operating as an APi Group subsidiary alongside Tessiers. Directly comparable in mechanical, HVAC, and fire safety service mix and in its sister-subsidiary relationship within the same parent platform.
- Shambaugh & Son: Midwest mechanical contractor (now part of EMCOR Group) specializing in HVAC, plumbing, process piping, and fire protection. Comparable in regional Midwest positioning, mechanical + fire protection service mix, and target customer segments (commercial, industrial, institutional).
- Southland Industries: National mechanical contractor delivering design-build HVAC, plumbing, and fire protection across commercial, industrial, and institutional markets. Closely comparable to Tessiers in service mix (HVAC + fabrication + fire protection), though operating at significantly larger geographic scale.
- Harris Companies: Minneapolis-based mechanical contractor offering HVAC, plumbing, and building services across commercial and industrial markets. Strong overlap with Tessiers in mechanical contracting, HVAC design-build, and regional Midwest commercial/industrial customer base.
- The Waldinger Corporation: Midwest-based mechanical and electrical contractor serving commercial, industrial, and institutional customers. Comparable in regional Upper Midwest positioning, mechanical services scope, and design-build / value-engineering capabilities similar to Tessiers' core offering.
Emerging players
- Continental Mechanical: Mid-sized regional mechanical and HVAC contractor serving commercial customers in the Midwest. Comparable to Tessiers in service mix and customer type, with overlapping but distinct geographic footprint and a smaller scale profile.
Regional players
- R.H. Witt: Mechanical contractor serving commercial and industrial customers across the Upper Midwest. Comparable to Tessiers in regional scale, mechanical contracting services, and customer segment focus, though operating in slightly different geographic sub-markets.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat4 records
Key risks6 records
Key highlights6 records
Customer concentration
Tessier’s social profiles
Digital presenceTessier’s financial estimates
Financial estimateRevenue estimate
Valuation estimate
Tessier’s leadership team
Management profileNumber of profiles
Tessier’s subsidiaries and ownership
Company hierarchySubsidiaries1 record
Tessier’s funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Tessier’s 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 Tessier’s
What does Tessier’s do?
Tessier's provides mechanical contracting services for commercial, agricultural, and industrial customers, including heating, ventilation, air-conditioning, refrigeration, temperature control, piping, and HVAC systems balancing. The company also performs custom sheet metal and duct fabrication, specialty welding, design-and-build value engineering, preventative HVAC maintenance, and (via the Midwest Fire & Safety division) fire suppression, fire extinguisher, and first aid services.
Is Tessier’s a public or private company?
Tessier’s is a private company. It is classified as corporate owned and is currently operating.
When was Tessier’s founded?
Tessier’s was founded in 1919. It employs 101 to 250 people.
Where is Tessier’s based?
Tessier’s is headquartered in Mitchell, United States, in the North America region.
How does Tessier’s make money?
Four revenue lines are on record. Mechanical Contracting Services are the primary driver. The others are HVAC Systems Services, sheet Metal and Specialty Fabrication and fire Safety Services.
Who are Tessier’s's main competitors?
Broad incumbents on record are APi Group, Comfort Systems USA and EMCOR Group. Direct peers are Grunau Company, Shambaugh & Son, Southland Industries, Harris Companies and The Waldinger Corporation. Continental Mechanical is listed as an emerging player. R.H. Witt is listed as a regional player.
Does Tessier’s have an API?
No public API is recorded for Tessier’s.
What industry is Tessier’s in?
Tessier’s's product category is Mechanical Contracting and Commercial HVAC Services. Its primary akta.pro industry code is IMAFALAB, HVAC & Refrigeration Contracting, with a secondary code of BPABACAG, Chillers, Boilers & Central Plant Operations. Its NAICS code is 238220.