ISG

What ISG does

ISG Inc. (legal entity I & S Group, Inc.) is a Minneapolis-headquartered, 100% employee-owned multidisciplinary architecture and engineering firm founded in 1973. The company operates across 20 U.S. locations and organizes its practice into 12 business units spanning Commercial, Education, Energy, Food + Industrial, Government + Cultural, Healthcare, Public Works, Residential + Mixed-Use, Sports + Recreation, Telecommunications + Utilities, Transportation, and Water. Headcount is reported at 501-1,000 employees, and the firm has grown both organically and through acquisition, completing five disclosed deals between August 2023 and June 2026 (Unit Architecture, JDavis Architects, Lift Environmental Design, ARC International, and RE Warner & Associates) and opening a new Columbus, Ohio office in December 2025.

The firm's core offering is integrated professional services rather than a software product platform. It delivers Architecture (interior design, landscape architecture, visualization including VR and animation), Engineering (civil, electrical, mechanical, structural), Environmental (permitting and compliance), and Planning (urban design) under a single multidisciplinary umbrella. Proprietary engagement methods include Visioning Labs, a stakeholder charrette-style process used to clarify project goals, supported by advanced visualization capabilities for communicating unbuilt environments. Operating geographies span at least seven states across the Midwest, South, and Mid-Atlantic.

Revenue mechanics are project-based professional services delivered via direct client engagement and industry partnerships, with pricing determined through scoping rather than published rates. The client mix is broad and horizontal across institutional, public-sector, and commercial buyers, including healthcare systems, educational institutions, government agencies, industrial companies, utilities, and developers. Go-to-market relies on direct enterprise sales, an active social-media presence, project case studies, and thought-leadership events. The firm is privately held with no parent company and no public ticker; financing for acquisitions appears to be funded internally or via employee-ownership structures given the absence of disclosed external funding rounds.

Name

ISG

Legal name

I & S Group, Inc.

Website

https://isginc.com

Company type

Private

Founded year

1973

Operating status

Operating

Headcount range

501–1,000 employees

Short description

ISG Inc. is a 100% employee-owned, Minneapolis-headquartered multidisciplinary architecture and engineering firm founded in 1973, operating 20 U.S. locations across 12 business units serving commercial, institutional, public-sector, and industrial clients.

Ownership category

akta.pro rank

Product category

Architecture and Engineering Services

NAICS

Engineering Services (54133), Architectural, Engineering, and Related Services (5413), Engineering Services (541330), Interior Design Services (541410), Landscape Architectural Services (54132)

SIC

Services-Engineering Services (8711), Services-Engineering, Accounting, Research, Management (8700)

akta.pro primary industry

MEP (Mechanical, Electrical & Plumbing) Engineering Consulting (BPAHAIAE)

Keywords

• Architecture engineering services
• Multidisciplinary design firm
• Civil structural engineering
• Environmental planning services
• Building infrastructure design

Headquarters

HQ city

Mankato

HQ country

United States

HQ region

North America

Offices4 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Distribution channels1 record

Marketing channels8 records

Core offering

ISG Inc. is a multidisciplinary architecture and engineering firm that sells integrated design services across 12 business units. Its core offerings are Architecture (interior design, landscape architecture, visualization), Engineering (civil, electrical, mechanical, structural), Environmental (permitting and compliance), and Planning (urban design and community planning). Services are delivered to commercial developers, healthcare systems, educational institutions, government agencies, utilities, and industrial clients through 20 U.S. office locations.

Product overview

ISG Inc. is a multidisciplinary design and engineering firm offering a unified suite of professional services across 12 business units: Commercial, Education, Energy, Food + Industrial, Government + Cultural, Healthcare, Public Works, Residential + Mixed-Use, Sports + Recreation, Telecommunications + Utilities, Transportation, and Water. The company provides integrated Architecture, Engineering, Environmental, and Planning services, functioning as a single-source provider for design and engineering projects rather than a software product platform. Services include Architecture (with sub-disciplines in Interior Design, Landscape Architecture, and Visualization), Engineering (Civil, Electrical, Mechanical, and Structural), Environmental (Permitting + Compliance), and Planning (Urban Design). The firm's portfolio demonstrates expertise across diverse market sectors including retail development, residential multifamily projects, healthcare facilities, electrical substations, sports venues, and public infrastructure.

Differentiator

Problem solved

Functional benefit

Products and services

• Architecture Services Comprehensive architectural design services covering interior design, landscape architecture, and visualization, delivered to commercial, residential, healthcare, education, and government clients across ISG's 12 business units and 20 U.S. office locations.
• Engineering Services Multi-disciplinary engineering services covering civil, electrical, mechanical, and structural engineering for infrastructure, buildings, energy facilities, industrial sites, water systems, and transportation projects.
• Environmental Services Environmental consulting, permitting, and regulatory compliance services supporting construction and infrastructure projects, including water quality, natural resource management, and industrial wastewater work.
• Planning Services Urban design and planning services for mixed-use developments, transit-oriented projects, municipal planning, and community planning initiatives.

Quantifiable outcome

• Delivering better solutions, faster through dynamic approach and all-in mentality
• +1 more outcomes

Segments12 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Five partnerships are on record, tiered core, minor and flagship.

• Medical Device CompaniescoreStrategic or Co-development Partner · 10 April 2026ISG launched a research study examining service providers that help medical device companies adopt new technologies such as AI, cloud, and IoT. Study results to be published in ISG Provider Lens reports covering Digital Engineering and Product Development, Regulatory Compliance and Quality Assurance, and AI-driven Post-Market Digital Enablement.
• South Dakota MinesminorStrategic or Co-development Partner · 3 April 2026Acquisition of ARC International in Rapid City, South Dakota will enhance collaborations with South Dakota Mines for regional projects across South Dakota and surrounding states.
• L&T Technology ServicesflagshipStrategic or Co-development Partner · 14 March 2026L&T Technology Services presented the 4th Digital Engineering Awards with ISG as knowledge partner, attracting 258 nominations from 17 countries across 12 award categories including AI Impact, Digital Engineering Project, and Physical AI Impact.
• CNBC-TV18coreGTM or Marketing Partner · 14 March 2026CNBC-TV18 served as media partner for the 4th Digital Engineering Awards, a global awards program recognizing engineering innovation and AI trailblazers, with ISG as knowledge partner.
• Unit ArchitectureflagshipStrategic or Co-development Partner · 17 August 2023Acquisition of Unit Architecture of Rogers, Arkansas by ISG Inc. enables expansion into Arkansas market to address regional housing shortages. Ryan King, owner of Unit Architecture, leads the new Rogers office focusing on local development challenges.

Scale indicators3 records

Recent moves8 records

Expansion highlights5 records

Direct peers

• Stantec: Stantec is a global multi-disciplinary A&E consulting firm offering architecture, engineering, environmental, and project management services across infrastructure, water, energy, and buildings. Directly comparable to ISG's integrated architecture+engineering+environmental model and similar sector coverage.
• WSP: WSP is a global professional services firm providing engineering, design, and environmental consulting across transportation, buildings, water, energy, and environment. Directly comparable in multi-disciplinary delivery and sector breadth.
• HDR: HDR is a US-based employee-owned A&E firm offering architecture, engineering, environmental, and construction services with strong presence in transportation, water, and healthcare. Closely comparable on employee-ownership model and multi-disciplinary sector mix.
• Kimley-Horn: Kimley-Horn is a US-based consulting firm providing planning, engineering, and design services across transportation, land development, water, and environmental markets. Comparable private A&E firm with similar sector overlap to ISG's Public Works, Transportation, and Residential units.
• Burns & McDonnell: Burns & McDonnell is a 100% employee-owned engineering, architecture, construction, and consulting firm serving energy, infrastructure, and industrial clients. Directly comparable on employee-ownership, multi-disciplinary delivery, and sector mix (especially Energy and Industrial).
• Tetra Tech: Tetra Tech is a global consulting and engineering firm focused on water, environment, energy, and infrastructure. Comparable to ISG's Water, Public Works, and Environmental business units with overlap in municipal water/wastewater and environmental compliance.

Broad incumbents

• AECOM: AECOM is a global infrastructure consulting firm offering professional services across transportation, buildings, water, energy, and environment. Larger incumbent competing for many of the same municipal, energy, and infrastructure pursuits ISG targets.
• Jacobs Solutions: Jacobs Solutions is a major global professional services firm providing engineering, technical, scientific, and consulting services. Larger incumbent with overlap on critical infrastructure, water, and advanced manufacturing engagements.
• Black & Veatch: Black & Veatch is a global engineering, procurement, and construction firm specializing in water, power, telecommunications, and oil & gas infrastructure. Comparable on Energy, Water, and Telecommunications + Utilities business units.

Regional players

• KLJ Engineering: KLJ Engineering is a Midwest-based engineering, planning, and surveying firm serving transportation, infrastructure, and community development clients. Comparable as a private, regionally anchored A&E peer overlapping with ISG's Public Works and Transportation units.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/isgroupinc
• YouTubeyoutube.com/c/ISGInc
• Facebookfacebook.com/ISGroupInc
• LinkedInlinkedin.com/company/264916
• Instagraminstagram.com/isginc1973

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&A4 records

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about ISG