What Janssen & Spaans Engineering does

Janssen & Spaans Engineering (JSE) is a privately held civil engineering firm headquartered in Indianapolis, Indiana, founded in 1978 (per firmographics) and operating for over 40 years. The firm specializes in transportation infrastructure engineering, with a primary focus on road and bridge design, design-build project delivery, and complex bridge projects. Its service portfolio covers the full project lifecycle, including design-build delivery, bridge design and rehabilitation, road design, construction inspection, county bridge inspection, bridge replacements, value engineering and re-designs, and independent peer reviews.

JSE operates from a headquarters in Indianapolis with satellite offices in Columbus (Indiana), Chicago, Southern Florida, and Montreal, Canada. Its client base is concentrated in the public sector, serving state and local governmental transportation agencies, alongside engineering consultants and infrastructure contractors. Notable current and recent projects include the I-65/I-70 North Split in Indianapolis, I-69 Section 6 Contract 5, the I-66 Express Lanes P3 in Virginia, the I-395 P3 Independent Design Check in Miami, and work for Florida International University.

The company's revenue model is professional services delivered through project-based contracts, with pricing quoted individually per project. JSE pursues clients through direct enterprise field sales, leveraging its reputation, specialized design-build expertise, and P3 (public-private partnership) experience to compete for major infrastructure awards. Marketing is supported by downloadable tri-fold brochures, a website, LinkedIn, and Twitter channels, and the firm emphasizes employee benefits, mentorship, and continuing education as part of its talent retention strategy.

Name

Janssen & Spaans Engineering

Legal name

Janssen & Spaans Engineering, Inc.

Website

https://jsengr.com

Company type

Private

Founded year

1980

Operating status

Operating

Headcount range

101–250 employees

Short description

Janssen & Spaans Engineering is a privately held Indianapolis-based civil engineering firm specializing in road and bridge design, design-build delivery, and construction inspection for state and local government agencies, consultants, and contractors across the U.S. and Canada.

Ownership category

akta.pro rank

Headquarters

HQ city

Indianapolis

HQ country

United States

HQ region

North America

Offices5 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Infrastructure

Revenue model

1. Engineering Services: Professional engineering services for road and bridge design projects, including design-build delivery, construction inspection, and independent peer reviews. Revenue is generated through project-based contracts with government agencies and infrastructure developers.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels3 records

Core offering

Janssen & Spaans Engineering (JSE) provides civil engineering services focused on transportation infrastructure, specializing in road and bridge design. The firm delivers integrated design-build services, bridge and road design, construction inspection, bridge inspection, bridge replacements and rehabilitation, value engineering, and independent peer reviews for state and local government agencies, consultants, and contractors.

Product overview

Janssen & Spaans Engineering (JSE) provides a comprehensive suite of civil engineering services focused on transportation infrastructure, specializing in road and bridge design with particular expertise in design-build delivery and complex bridge projects. The company operates as a unified service provider rather than a software product company, offering services including Design-Build, Bridge Design, Road Design, Construction Inspection, County Bridge Inspection, Bridge Replacements, Bridge Rehabilitation, Value Engineering & Re-Designs, and Consultant Independent Peer Reviews. The company has delivered award-winning projects across the United States and internationally, with current notable projects including the I-65/I-70 North Split in Indianapolis, I-69 Section 6, I-66 Express Lanes P3 in Virginia, and I-395 P3 Independent Design Check in Florida.

Differentiator

Problem solved

Functional benefit

Products and services

• Design-Build Services Provides integrated design and construction services under a single contract, enabling accelerated project delivery and collaborative problem-solving between designers and contractors. Targeted at state and local government agencies and infrastructure developers.
• Bridge Design Specialized engineering services for the design of new bridges and evaluation of existing structures, including complex bridge projects for transportation agencies and developers.
• Road Design Engineering design services for roadways including highways, arterials, and local roads, with expertise in express lanes and managed lane projects for state DOTs and contractors.
• Construction Inspection On-site inspection and quality assurance services during construction to ensure projects meet design specifications and regulatory standards for government and contractor clients.
• County Bridge Inspection Systematic inspection and evaluation services for county-owned bridges to assess condition and maintenance needs.
• Bridge Replacements Engineering and design services for complete replacement of aging or structurally deficient bridges, delivered to government agencies and contractors.
• Bridge Rehabilitation Engineering services to restore and strengthen existing bridges, extending service life and improving performance for infrastructure owners.
• Value Engineering and Re-Designs Cost optimization analysis and redesign services to improve project value, efficiency, and constructability while maintaining quality.
• Consultant Independent Peer Reviews Third-party review services providing independent technical evaluation of engineering designs and project approaches for consultants and government clients.

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Scale indicators2 records

Recent moves5 records

Expansion highlights5 records

Direct peers

• HDR: Employee-owned engineering firm with a leading U.S. transportation practice, recognized for bridge and highway design and program management. Direct competitor to JSE on state DOT and design-build bridge pursuits; similar professional services model and client base.
• Kimley-Horn: Privately held U.S. engineering planning and design firm with a major transportation practice covering roadway and bridge design. Closely comparable in size, ownership profile, and target market to JSE; competes head-to-head for DOT and municipal transportation work.
• TranSystems: Employee-owned engineering and planning firm focused almost exclusively on transportation infrastructure, including roads, bridges, and design-build delivery. Closely comparable in business model and client set to JSE, with similar scale and similar reliance on DOT relationships.
• Michael Baker International: U.S. engineering, planning, and consulting firm with a long-standing transportation practice spanning bridge and highway design, inspection, and program management. Direct competitor for state DOT bridge and design-build work; comparable in scale and service mix.
• RS&H: Employee-owned engineering, architecture, and planning firm with a strong transportation and infrastructure practice, including bridge design, highway design, and construction engineering inspection. Comparable in size, ownership, and DOT-focused service mix to JSE.
• T.Y. Lin International: Global engineering firm specializing in bridge, highway, and structural design with strong design-build credentials. Directly comparable in core bridge/highway design capability and in serving public agency clients alongside larger multi-disciplinary firms.

Broad incumbents

• WSP Global: Global engineering professional services firm with a large transportation infrastructure practice covering road and bridge design, design-build, and P3 advisory. Comparable to JSE in target market (state DOTs, public agencies) but operates at a vastly larger scale as a multi-disciplinary incumbent.
• AECOM: Multi-national infrastructure consulting firm with extensive transportation, bridge, and design-build capabilities serving U.S. state DOTs. Competes with JSE for the same public-sector bridge and highway work but at far greater scale and with broader service lines.
• Jacobs Solutions: Global engineering and technical services firm with a sizable transportation infrastructure practice delivering design, program management, and construction services. Overlaps directly with JSE on state DOT bridge, highway, and design-build pursuits.
• Stantec: International engineering, architecture, and environmental services firm with strong North American transportation infrastructure practice. Targets the same state DOT and municipal clients as JSE for road and bridge design, with broader service breadth.

Market position

Strengths1 record

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/JanssenSpaans
• LinkedInlinkedin.com/company/902795

Revenue estimate

Valuation estimate

Number of profiles

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 Janssen & Spaans Engineering