Tamtam Start free

The 28 largest Construction companies in Iowa

Tamtam tracks 28 Construction companies headquartered in Iowa. This list ranks all of them by number of employees on LinkedIn, led by The Weitz Company, Interstates and EFCO Forming & Shoring Solutions. Their median headcount is 151. Half of them were founded in 1964 or later. The most common headquarters are Des Moines (6), Davenport (3) and Cedar Rapids (2).

馃嚭馃嚫 Iowa28 companiesUpdated Nov 2, 2026
#CompanyIndustryHeadquarters EmployeesFounded
1
The Weitz Companyweitz.com

Full-service construction company specializing in design-build, general contracting, and construction management across industrial and commercial sectors nationwide.

Construction 馃嚭馃嚫 Des Moines 1,241 1855
2
Interstatesinterstates.com

A trusted partner for electrical, automation, and operational technology needs in industrial manufacturing and processing facilities worldwide, focused on collaborative, family-like teamwork

Construction 馃嚭馃嚫 Sioux Center 1,158 1953
3
EFCO Forming & Shoring Solutionsefcoforms.com

EFCO provides safe, reliable, and cost-efficient concrete formwork solutions for construction projects, focusing on efficiency, quality, and customer service

Construction 馃嚭馃嚫 Des Moines 930 1934
4
The Waldinger Corporationwaldinger.com

Mechanical, electrical, and sheet metal contracting services with a people-first approach, operating across the Midwest United States.

Construction 馃嚭馃嚫 Des Moines 927 1906
5
Baker Groupthebakergroup.com

A premier specialty contractor in Iowa offering a wide range of services including mechanical, electrical, HVAC, plumbing, building automation, and security systems

Construction 馃嚭馃嚫 Ankeny 836 1963
6
Carpenters Unioncarpenters106.org

Construction company specializing in carpentry services, based in Altoona, IA, United States

Construction 馃嚭馃嚫 Altoona 748 n/a
7
Russell Co.russellco.com

A nationally ranked construction and development firm with over $3 billion in projects across 33 states, focused on exceeding client expectations and creating career opportunities

Construction 馃嚭馃嚫 Davenport 512 1983
8
Tri-City Grouptricityelectric.com

Experienced team providing a wide range of electrical services including engineering, integration, security, telecommunications, disaster recovery, and residential & construction projects

Construction 馃嚭馃嚫 Davenport 458 1895
9
PDMpdmprecast.com

Employee-owned producer of precast concrete and structural steel fabricator Specializing in architectural and structural components for various construction projects

Construction 馃嚭馃嚫 Des Moines 311 n/a
10
Clow Valve Companyclowvalve.com

Manufacturing waterworks valves and fire hydrants through iron and brass foundries, machine shops, and assembly plants to provide infrastructure solutions across the country.

Construction 馃嚭馃嚫 Oskaloosa 225 n/a
11
Graham Construction a 3G Company3gcos.com

A leading Construction Manager and General Contractor in the Midwest, specializing in healthcare, complex projects, renovations, and maintaining long-term relationships

Construction 馃嚭馃嚫 Des Moines 202 1981
12
Conlon Constructionconlonco.com

A company with over 120 years of experience offering commercial construction services, including management, design-build, development, fixturing, and maintenance Committed to quality and customer relationships

Construction 馃嚭馃嚫 Dubuque 172 1903
13
Todd & Sargent, Inc.tsargent.com

A company specializing in engineering and construction services for over fifty years, dedicated to ensuring client growth and success

Construction 馃嚭馃嚫 Ames 151 1933
14
Peterson Contractors Inc.pcius.com

A trusted heavy civil and ground improvement contractor with over 50 years of experience, specializing in complex projects and embracing innovative technologies

Construction 馃嚭馃嚫 Reinbeck 151 1964
15
Story Constructionstorycon.com

An employee-owned company in Iowa offering general contracting, construction management, and design-build services for commercial projects

Construction 馃嚭馃嚫 Ames 148 1934
16
Kinzler Corporationkinzlercorp.com

An employee-owned family of companies that install building products, distribute materials, and service/install garage doors for residential and commercial projects

Construction 馃嚭馃嚫 Ankeny 147 1984
17
Metal Design Systems, Incmetaldesignsystems.com

National provider of Architectural Wall Cladding Systems and Facility Branding Programs using materials like ACM, MCM, Stainless Steel, and more Offers design assistance and custom solutions

Construction 馃嚭馃嚫 Anamosa 78 1998
18
John Deere Davenport Works

Construction company based in Davenport, Iowa, specializing in manufacturing equipment for industries such as agriculture, forestry, and construction

Construction 馃嚭馃嚫 Davenport 77 n/a
19
Star Equipment, Ltd.starequip.com

A family-owned company providing top-quality construction equipment, training, and services to maximize profitability while minimizing downtime for clients

Construction 馃嚭馃嚫 Des Moines 63 1968
20
Hallett Materialshallettmaterials.com

Established in 1918, this company operates over 40 aggregate pits in Central and Western Iowa, providing quality services and products for a century

Construction 馃嚭馃嚫 Ankeny 48 n/a
21
Kaufman Constructionkaufmanconstruction.com

Specializing in remodeling, building new homes with character, and restoring older homes, we focus on quality design and construction with excellent customer service

Construction 馃嚭馃嚫 West Des Moines 26 n/a
22
Pengo Corporationpengoattachments.com

A company with over 68 years experience manufacturing industry-leading drilling attachments for agriculture, construction, utility, and infrastructure industries, introducing over 70 patents

Construction 馃嚭馃嚫 Laurens 20 1950
23
D&B Remodelingskogmanremodeling.com

Specializing in remodeling services, providing high-quality workmanship and customer service Visit our official website for more information

Construction 馃嚭馃嚫 Hiawatha 13 1991
24
HomeWorx Inc.homeworxiowa.com

Residential remodeling company based in Des Moines, IA, with a skilled team providing honest, technology-driven services to simplify the customer experience

Construction 馃嚭馃嚫 Urbandale 10 2016
25
Brown's Heavy Equipmentbheliftparts.com

Family-owned full-service company repairing, leasing, and selling heavy equipment and parts to construction and mining industries Authorized service center for various brands

Construction 馃嚭馃嚫 Ames 9 1980
26
Tri-County Enterprises, Inc.tricounty-iowa.com

A full-service exterior remodeling contractor offering residential and commercial services including roofing, siding, gutters, and windows with a focus on quality, innovation, and community involvement

Construction 馃嚭馃嚫 Cedar Rapids 8 1997
27
Compelling Homes,LLCcompellinghomes.com

A design-build contractor focused on remodeling homes around homeowners' lifestyles, offering architectural, interior design, construction, and project management services with trust and precision

Construction 馃嚭馃嚫 Grimes 5 2009
28
Hammer For Hirehammer-for-hire.business.site

A local business specializing in remodeling, light construction, and custom woodworking, dedicated to ensuring customer satisfaction and delivering quality work

Construction 馃嚭馃嚫 Cedar Rapids 4 n/a

Turn this list into pipeline

Tamtam finds the decision-makers at every company on a list like this one, with verified emails, phone numbers and the buying signals that tell you when to reach out.

Build your own list, free

How this list is built

Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 2, 2026.

More company lists in Iowa

The same list elsewhere in United States