Sjostrom and Sons

What Sjostrom and Sons does

Sjostrom & Sons, Inc. is a fourth-generation, family-owned general contractor headquartered at 1129 Harrison Avenue in Rockford, Illinois, founded in 1914 by Swedish immigrant stone mason Richard Sjostrom. The company evolved from a foundation-focused masonry business into a full-service general contractor by 1929 and has since expanded into reinforced concrete construction, concrete paving, and heavy-highway work. Today it serves public, private, and non-profit clients across Northwest Illinois through General Contracting, Construction Management, Design/Build, Preconstruction, and Specialty Construction Services, with a distinct emphasis on self-performed work that covers sitework, underground utilities, concrete paving, bridges and structural work, masonry, steel structures, rough and finish carpentry, and millwright services.

The company's revenue is generated primarily through construction project contracts awarded via competitive bids, RFP responses, and negotiated work. Its client base spans healthcare (Mercyhealth, OrthoIllinois, Rosecrance), education (Rock Valley College, Kishwaukee College), municipal and government (Rockford Park District, Rock River Water Reclamation District), industrial/manufacturing (Woodward, Starbuds), automotive retail (Napleton Automotive Group), and hospitality/entertainment (Kennay Farms Distilling). Pricing is quote-based and project-specific, with no public rate card or standardized pricing tiers. Distribution is exclusively direct: the firm acquires work through relationship-driven engagement, repeat clients, and referrals, supported by a basic website, Facebook page, and Google Maps listing rather than digital marketing or formal sales channels.

Sjostrom differentiates through its 110+ year operating history, its scale as one of the largest self-performing contractors in Northern Illinois, and a strong safety record reflected in a .73 Experience Modification Rating. Beyond construction services, it is pursuing a real-estate development line of business via the 128-acre Crosslink Business Park in Belvidere, Illinois, located within the Belvidere/Boone County Enterprise Zone. The firm is led by three family members in the fourth generation of ownership, is privately held with no disclosed institutional investors, and operates as a regional contractor without any disclosed AI/ML technology stack.

Name

Sjostrom and Sons

Legal name

Sjostrom & Sons, Inc.

Website

https://sjostromconstruction.com

Company type

Private

Founded year

1914

Operating status

Operating

Headcount range

51–100 employees

Short description

Sjostrom & Sons is a fourth-generation, family-owned general contractor in Rockford, Illinois offering general contracting, construction management, design/build, and self-performed construction services across healthcare, education, industrial, municipal, automotive, and hospitality sectors in Northwest Illinois.

Ownership category

akta.pro rank

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, Supply Chain, Operations, Marketing or Sales, Others

Revenue model

1. Construction Project Revenue: Revenue is generated through construction project contracts. The company serves as general contractor or construction manager on projects, earning fees based on project scope, complexity, and delivery method. Projects range from small renovations to large-scale new construction and infrastructure work.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

Sjostrom & Sons is a 4th generation general contractor and construction manager that delivers building and heavy highway construction projects across Northwest Illinois. The company provides general contracting, construction management, design/build, preconstruction, and project management services, complemented by self-performed work in sitework, underground utilities, concrete paving, bridges, masonry, steel, carpentry, and millwright trades. It also develops commercial land through projects such as the 128-acre Crosslink Business Park in Belvidere.

Product overview

Sjostrom & Sons, Inc. is a 4th generation building and heavy highway contractor offering a comprehensive suite of construction services centered around its core offerings of General Contracting, Construction Management, Design/Build, and Specialty Construction Services. The company differentiates itself through extensive self-performed work capabilities covering sitework, underground utilities, concrete paving, bridges and structural work, masonry, steel structures, carpentry, and millwright services. Additionally, the company offers Land Development services through projects like Crosslink Business Park. The company serves diverse market sectors including healthcare, institutional/education, industrial, car dealerships, paving and roads, hospitality and entertainment, municipal, and bridges and structures. With over 105 years of experience, the company is recognized as one of the largest self-performing contractors in Northern Illinois.

Differentiator

Problem solved

Functional benefit

Products and services

• General Contracting

Quantifiable outcome

• .73 Experience Modification Rating demonstrating strong safety performance

Named customers11 records

Segments6 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Seven partnerships are on record, tiered core and minor.

• NIBCA (Northern Illinois Building Contractors Association)coreOthersProfessional trade association affiliation providing networking, advocacy, and industry standards alignment for construction contractors in Northern Illinois. Company participates in NIBCA events including safety meetings and social gatherings.
• ACPA (American Concrete Pavement Association)coreOthersIndustry association for concrete pavement contractors providing technical resources, best practices, and industry advocacy. Includes Illinois chapter affiliation.
• Rockford Chamber of CommercecoreOthersLocal business association supporting regional economic development and business networking in the Rockford area.
• RAEDC (Rockford Area Economic Development Council)coreOthersEconomic development organization supporting business growth and development in the Rockford region. Company participates in regional development initiatives including Crosslink Business Park.
• Project First RateminorOthersConstruction industry workforce development and training program affiliation.
• Trade Unions (Local 32, Carpenters 792, Operators 150, Local 11, Ironworkers 498, Local 2158, Teamsters)coreOthersWorking relationships with multiple trade unions for skilled labor in carpentry, operating engineers, ironwork, millwright, and teamster trades. Reflects mature labor relations and access to trained workforce.
• KMK Media GroupminorImplementation/ SI/ Consulting PartnerWebsite development and digital services provider responsible for the company's website design and maintenance.

Scale indicators4 records

Recent moves7 records

Expansion highlights5 records

Direct peers

• Pepper Construction Group: Midwest-based general contractor and construction manager serving healthcare, education, industrial, and commercial clients with significant self-perform capability — directly comparable to Sjostrom's regional building and construction-management model.
• The Walsh Group: Chicago-headquartered family-owned general contractor with a heavy/civil building and transportation construction focus; closely aligned with Sjostrom's combined building and heavy-highway self-perform capabilities.
• W.E. O'Neil Construction: Midwest-headquartered general contractor operating across healthcare, education, hospitality, and industrial sectors with construction management and design-build delivery — comparable in scope and regional delivery model.
• Power Construction: Chicago-based general contractor with strong healthcare, education, and commercial project portfolios and design-build delivery; comparable size and market overlap in Northern Illinois.
• Leopardo Companies: Hoffman Estates-based general contractor and construction manager serving healthcare, commercial, and institutional clients in the Chicago and Northern Illinois region.

Broad incumbents

• Gilbane Building Company: Large national construction management and general contracting firm with significant healthcare, education, and public-sector practice; competes for similar institutional project types across multiple geographies.
• McCarthy Building Companies: National general contractor with major healthcare, education, and industrial practice plus heavy-civil capabilities; broader geographic reach but overlapping end markets and self-perform ethos.
• Mortenson Construction: Large Minneapolis-based general contractor with healthcare, higher education, and renewable-energy practices; comparably family-influenced culture and significant self-perform capability.
• Clark Construction Group: National general contractor with deep healthcare and education portfolios and integrated self-perform work; overlaps with Sjostrom on institutional client profile at a much larger scale.

Regional players

• Stenstrom Companies: Rockford, Illinois-area general contractor and construction manager serving institutional, industrial, and commercial clients in the same Northwest Illinois geography as Sjostrom.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/pages/category/Contractor/Sjostrom-Sons-Inc-156059877766717

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 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 Sjostrom and Sons