What Stenstrom does

Stenstrom Companies Ltd. is a privately held, Woman-Owned Business (WBE certified) multi-divisional construction and infrastructure services firm headquartered at 2420 20th Street in Rockford, Illinois. Founded circa 1950, the company operates four divisions — Construction Group (industrial, commercial, institutional, and affordable housing projects), Excavation and Blacktop (asphalt, concrete, earthwork, utilities, and snow removal), Petroleum Services Group (24/7 service, environmental compliance and testing, construction, parts distribution, and vacuum truck services for fuel systems), and Real Estate Development. Service delivery spans Illinois, Wisconsin, Indiana, Iowa, and (via the Evora Energy acquisition) Eastern Nebraska and Western Illinois.

The business runs on a project-based professional services model with six contract structures available to clients — Construction Management as Agent, Construction Management at Risk, Cost Plus, Design Build, Guaranteed Maximum Price, and Lump Sum General Contracting — applied across industrial, commercial, institutional, retail, petroleum, and public-sector end markets. On the operations side, the Petroleum division is the most technology-enabled: technicians are dispatched via GPS software to minimize response time and downtime, and service trucks use tablet software for real-time parts inventory reconciliation to enable first-visit repair completion. Petroleum parts distribution covers major industry brands (Wayne, Gilbarco, Veeder Root, VeriFone, Gasboy, Husky, OPW, Red Jacket, FE Petro, Morrison, Catlow, Graco). Construction-division projects are supported by LEED-accredited professionals and Green Associates, with sustainability credentials offered as a differentiator. Workforce development is institutionalized via Stenstrom University (instructor-led, online, webinar, and simulation formats).

Revenue mechanics are diversified across the four divisions, with go-to-market executed through direct project-based sales rather than digital or channel-led distribution. The customer base is segmented across industrial, commercial, institutional (schools, hospitals, municipal), retail, petroleum operators, and affordable housing developers, with no publicly disclosed anchor customers. Growth has been pursued through targeted acquisitions — Evora Energy (geographic expansion into IA/NE) and Purpora Engineering (vertical integration in tank/pipeline testing and vapor recovery) — and through organic build-out of compliance capability via the Protanic sub-brand.

Name

Stenstrom

Legal name

Stenstrom Companies Ltd.

Website

https://rstenstrom.com

Company type

Private

Founded year

1950

Operating status

Operating

Headcount range

11–50 employees

Short description

Stenstrom Companies Ltd. is a privately held, WBE-certified Midwest construction and infrastructure firm operating four divisions — Construction Group, Excavation and Blacktop, Petroleum Services Group, and Real Estate Development — serving industrial, commercial, institutional, petroleum, and public-sector clients across Illinois, Wisconsin, Indiana, Iowa, and Eastern Nebraska.

Ownership category

akta.pro rank

Product category

Construction Services

NAICS

Site Preparation Contractors (23891), Other Heavy and Civil Engineering Construction (237990), Oil and Gas Pipeline and Related Structures Construction (237120)

SIC

Construction - Special Trade Contractors (1700), Heavy Construction Other Than Bldg Const - Contractors (1600), Oil & Gas Field Machinery & Equipment (3533)

akta.pro primary industry

Well Construction & Completion Services (Cementing, Casing, Tubular Running) (EUALABAC)

akta.pro secondary industries

Demolition & Selective Tear-Out for Hazardous Materials (BPALALAF), Underground Gas Line Trenching & Sleeving (HSAOAKAI)

Keywords

• Construction management services
• General contracting services
• Petroleum system services
• Excavation and blacktop
• Real estate development

Headquarters

HQ city

Rockford

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Construction Services: Project-based construction services for industrial, commercial, institutional, and affordable housing projects delivered through various contract methods
2. Petroleum Services: Full-service petroleum solutions including service, environmental compliance and testing, construction, and parts for petroleum systems
3. Excavation and Blacktop Services: Asphalt, concrete, excavation, and utilities services for infrastructure projects
4. Real Estate Development: Real estate development services across the Midwest region

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

Stenstrom is a multi-divisional construction and services firm that delivers general contracting and construction management for industrial, commercial, institutional, and affordable housing buildings; excavation, asphalt/concrete, utilities, and snow removal services; full-service petroleum solutions including 24/7 service, environmental compliance and testing, construction, parts distribution, and vacuum truck services; and Midwest real estate development. The company serves clients in the Midwest region through various contract delivery methods.

Product overview

Stenstrom is a multi-divisional construction and services company operating four distinct divisions: General Contracting/Construction Group, Excavation and Blacktop, Petroleum Services Group, and Real Estate Development. The company provides a comprehensive suite of construction-related services across the Midwest, with the Petroleum Services Group being a regional leader offering integrated service, environmental compliance, construction, parts, and vacuum truck services for petroleum systems. The Excavation and Blacktop division handles asphalt, concrete, excavation, and utility work, while the Construction Group manages general contracting and construction management. All divisions share core values of craftsmanship, quality, and client-focused approach.

Differentiator

Problem solved

Functional benefit

Brands

• Stenstrom Petroleum Services Group: Regional leader in providing Service, Environmental Compliance & Testing, Construction, and Parts for petroleum systems.
• Protanic
• Stenstrom Construction Group

Products and services

• General Contracting / Construction Group Full-service construction management and general contracting for industrial, commercial, institutional buildings and affordable housing in the Midwest, delivered under multiple contract types: Construction Management as Agent, Construction Management at Risk, Cost Plus, Design Build, Guaranteed Maximum Price, and Lump Sum.
• Excavation and Blacktop Division offering asphalt (driveways, parking lots, roadways), concrete (curb and gutter, flatwork), excavation (athletic fields, earth moving, site development), and utilities (sanitary sewers, storm sewers, watermain) as the foundation for buildings and infrastructure projects.
• Snow Removal Snowplowing and salting services for commercial and industrial properties, offered under the Excavation and Blacktop division.
• Petroleum Services Group Regional full-service partner for petroleum systems offering Service, Environmental Compliance & Testing, Construction, and Parts across Illinois, Wisconsin, Indiana, and Iowa, with 24-hour emergency response, GPS-dispatched technicians, and tablet-based inventory reconciliation.
• Petroleum Service & Maintenance 24/7 petroleum system service and maintenance including Automatic Tank Gauges, Calibrations, Fuel Management Systems, Fueling Dispensers, Leak Detection, Point of Sale Systems, Preventative Maintenance, Submersible Pumps, Hanging Hardware, and Insurance Claims support.
• Environmental Compliance & Testing Environmental compliance and testing services for petroleum facilities, operated through the Protanic compliance division, including All State Regulated Testing, Annual Inspection, Cathodic Protection Testing, Leak Detection Testing, Tank Testing, Product Line Testing, and Secondary Containment Testing.
• Petroleum Construction Installation of fuel handling systems and equipment including Above Ground Storage Tanks, CNG, DEF, Ethanol Conversions, Fleet Fueling, Generator Tank Fueling Systems, Manhole Replacement, Tank Monitoring, and Underground Storage Tanks.
• Vacuum Truck Services Certified technician vacuum truck services to remove liquids and solids from spill buckets, tank containment, and dispenser sumps, including hydrostatic containment testing; combined with Stenstrom's only-in-Illinois integrated Construction, Service, Environmental Compliance, and Vacuum Truck Services offering, using 3,200-gallon capacity equipment.
• Petroleum Parts Distribution Fully stocked warehouses distributing petroleum equipment parts as a distributor for Wayne, Gilbarco, Veeder Root, VeriFone, Gasboy, Husky, OPW, Red Jacket, FE Petro, Morrison, Catlow, and Graco.
• Real Estate Development Real estate development division creating projects and value across communities in the Midwest region.

Segments5 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Seven partnerships are on record, tiered core and minor.

• Evora EnergycoreStrategic or Co-development PartnerStenstrom Petroleum Services acquired Evora Energy in Grimes, Iowa. Evora Energy offers service in Iowa, Eastern Nebraska, and Western Illinois, extending Stenstrom's petroleum service coverage area.
• ProtaniccoreStrategic or Co-development PartnerProtanic serves as Stenstrom Petroleum's compliance division. A pioneer in the field, Protanic is the industry leader in locating the source of petroleum leaks with proprietary engineering and innovative products.
• Purpora EngineeringcoreStrategic or Co-development PartnerStenstrom acquired Purpora Engineering, the industry leader in training and equipment for tank testing, pipeline testing, and vapor recovery. Purpora helps contractors, oil companies, and regulators achieve a cleaner, safer, less polluted environment.
• PEI (Petroleum Equipment Institute)minorOthersStenstrom Petroleum Services involvement with PEI serves as proof of dedication to the petroleum industry.
• IPMAminorOthersIndustry association membership demonstrating Stenstrom's dedication to the petroleum industry.
• IPECAminorOthersIndustry association membership demonstrating Stenstrom's dedication to the petroleum industry.
• WPMAminorOthersIndustry association membership demonstrating Stenstrom's dedication to the petroleum industry.

Scale indicators5 records

Recent moves6 records

Expansion highlights6 records

Regional players

• Ames Construction: Heavy civil and mining/industrial construction contractor headquartered in the western U.S. with Midwest project work. Comparable for heavy civil/site preparation capabilities overlapping with Stenstrom's Excavation and Blacktop division, though Ames is non-overlapping geographically.

Direct peers

• Leopardo Companies: Chicago-area general contractor and construction manager focused on commercial, healthcare, and institutional builds. Comparable for Midwest geographic overlap, construction management delivery model, and similar customer segment focus (institutional, healthcare, retail).
• Tanknology: National petroleum tank testing and environmental compliance services provider. Comparable as a direct competitor in Stenstrom's petroleum compliance and testing line — Stenstrom's Protanic division and Tanknology both serve retail petroleum operators needing UST/AST compliance testing.
• The Boldt Company: Wisconsin-based integrated construction services firm serving industrial, commercial, healthcare, and power markets across the Midwest. Comparable for its regional Midwest footprint, multi-delivery-method construction services, and family/private ownership profile.
• Pepper Construction Group: Chicago/Midwest general contractor and construction manager serving commercial, industrial, and institutional markets. Comparable as a Midwest-headquartered firm offering similar construction delivery methods (CM at Risk, Design-Build, Lump Sum) across overlapping customer segments.
• The Weitz Company: Iowa-headquartered general contractor and construction manager serving commercial, industrial, and senior living markets across the Midwest. Comparable as a regional Midwest competitor with overlapping customer segments and similar construction management delivery capabilities.
• William Charles Construction: Rockford, IL-based multi-division construction services firm (heavy civil, electrical, general contracting) operating across the Midwest. Comparable as a similarly diversified regional contractor with overlapping geographies and a comparable mix of public-sector and commercial project work.

Broad incumbents

• Mortenson Construction: Minneapolis-headquartered national builder operating across commercial, renewable energy, healthcare, and heavy civil markets. Comparable as a larger Midwest-rooted incumbent with overlapping institutional and industrial construction work, but with materially greater scale and national reach.
• McCarthy Building Companies: St. Louis-based national construction firm with deep Midwest roots serving industrial, healthcare, commercial, and energy markets. Comparable as a broader incumbent competing for institutional and industrial construction work across Stenstrom's Midwest footprint.
• The Walsh Group / Walsh Construction: Chicago-based national construction services firm covering heavy civil, building, and water/transportation infrastructure. Comparable as a Midwest incumbent competing for the same institutional, industrial, and civil infrastructure work, but at substantially larger scale.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

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• Instagraminstagram.com/stenstrom_companies

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries2 records

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 Stenstrom