Wiss Janney Elstner Associates

What Wiss Janney Elstner Associates does

Wiss, Janney, Elstner Associates (WJE) is an independent, privately held engineering, architectural, and materials science consulting firm founded in 1956 by Jack Janney and headquartered in Northbrook, Illinois. The firm delivers interdisciplinary professional services across the full lifecycle of the built environment, including structural evaluation, repair and rehabilitation design, failure and damage investigation, litigation consulting, historic preservation, building enclosure engineering, fire protection, seismic evaluation, geotechnical analysis, and materials testing and research. Its core technology platform combines deep human expertise with the 70,000-square-foot Janney Technical Center laboratory, which is accredited to perform more than 250 standardized tests (ASTM, AASHTO), supplemented by satellite labs in Austin and Cleveland, a fleet of FAA-licensed drone pilots, and proprietary engineering software tools (WJE CASLE™ for corrosion and service life evaluation, WJE Plannotate® for field inspection data capture, and WJE CrackCalc™ for API 579 fracture-mechanics assessments).

WJE generates revenue exclusively through professional services fees on a project-based engagement model, delivered directly to enterprise clients — building owners, government agencies, contractors, insurance companies, attorneys, and institutions — through 28 offices across the United States, Canada, and London. The firm has investigated, tested, or designed solutions for more than 200,000 projects spanning virtually every construction material and structural system. Customer demand is generated through a combination of professional referrals, marquee-project reputation, an active knowledge-portal publishing program (articles, webinars, videos), specialty industry websites, and a social/email presence. The firm operates with no disclosed outside equity, no parent company, and no public funding history, having grown organically over seven decades into one of the largest privately held specialty engineering consultancies in North America.

Name

Wiss Janney Elstner Associates

Legal name

Wiss, Janney, Elstner Associates, Inc.

Website

https://wje.com

Company type

Private

Founded year

1956

Operating status

Operating

Headcount range

501–1,000 employees

Short description

Wiss, Janney, Elstner Associates is a privately held engineering, architectural, and materials science consulting firm founded in 1956 that investigates, tests, and designs solutions for buildings, infrastructure, energy, industrial, and insurance clients across 28 offices in North America and Europe.

Ownership category

akta.pro rank

Headquarters

HQ city

Northbrook

HQ country

United States

HQ region

North America

Offices30 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Engineering and Architectural Consulting Services: WJE generates revenue through professional consulting fees for engineering, architectural, and materials science services. Projects span investigation, testing, design review, repair and rehabilitation, and forensic analysis across buildings, infrastructure, industrial, and energy sectors. Revenue is project-based, typically engagements with enterprise clients including owners, contractors, government agencies, and insurance companies.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels7 records

Core offering

Wiss, Janney, Elstner Associates (WJE) is an interdisciplinary engineering, architectural, and materials science consulting firm that investigates, tests, and designs solutions for problems affecting buildings, infrastructure, industrial, and energy assets. The firm sells customized, project-based professional services spanning investigation, nondestructive and laboratory testing, structural and materials analysis, repair/rehabilitation design, historic preservation, forensic failure analysis, and litigation consulting, supported by proprietary tools and the Janney Technical Center.

Product overview

Wiss, Janney, Elstner Associates (WJE) is an interdisciplinary engineering and architectural consulting firm founded in 1956, offering a comprehensive portfolio of professional services rather than a single product. The firm provides 34 distinct service offerings organized across five categories: Engineering (Bridge, Structural, Materials, Metallurgy, Fire Protection, Seismic, Geotechnical, Construction, Heavy Movable Structures), Architecture (Building Enclosures, Historic Preservation, Building Science, Architectural Finishes, Enclosure Commissioning), Laboratory (Materials Evaluation, Product Development, Research, Structural Load/Fatigue Testing), Field Services (Condition Evaluation, Nondestructive Evaluation, Instrumentation/Monitoring, Structural Load Testing, Building Enclosure Testing, Difficult Access/Drone Survey, Construction Observation), Forensics (Failure Investigation, Litigation Consulting), and Design (Design-Build, Design Review, Repair/Rehabilitation, Systems/Components). The portfolio is supported by proprietary software tools including WJE Plannotate® (inspection data collection), WJE CASLE™ (corrosion assessment), and WJE CrackCalc™ (fracture mechanics), a 70,000-sq-ft Janney Technical Center laboratory facility, and drone inspection capabilities. The firm also maintains three knowledge resource websites (SustainableConcrete.com, FacadeOrdinance.com, SeismicOrdinances.com) for industry education.

Differentiator

Problem solved

Functional benefit

Products and services

• Bridge Engineering Comprehensive bridge engineering services including structural evaluation, load rating, fatigue and fracture studies, failure investigation, sustainable concrete solutions, corrosion protection, repair and rehabilitation design, and seismic evaluation and retrofit design, delivered to government agencies and bridge owners.
• Structural Engineering Structural engineering services covering construction support, load rating, instrumentation and load testing, repair and retrofit design, seismic evaluation, specialized structural design, and structural condition assessment for new and existing structures.
• Materials Engineering Materials engineering services including structural and durability evaluation, service life modeling, weathering studies, corrosion assessments, coatings evaluation, failure analysis, and product development and testing.
• Metallurgy and Applied Mechanics Metallurgical consulting and testing, metals characterization, forensic investigations, failure analysis, weld engineering, corrosion assessment, heat treating evaluations, fire damage assessment, and nonlinear finite element analysis.
• Fire Protection and Life Safety Fire protection engineering and life safety services including fire alarm and suppression system design, building and fire code consulting, structural fire protection, fire engineering and modeling, egress analysis, and combustible facade evaluation.
• Seismic Engineering Seismic engineering services including seismic risk assessment, performance evaluation, earthquake damage assessment, peer review, seismic repair and retrofit design, and assessment of nonstructural systems.
• Geotechnical and Geological Engineering Geotechnical and geological engineering services including geological hazard assessment, earth retention and slope stabilization, water resource dams and canals, geotechnical instrumentation, and forensic engineering.
• Construction Engineering Construction engineering services including means and methods, sequencing, risk mitigation, erection/demolition procedures, stability analyses, design of rigging, shoring and bracing, and mass concrete consulting.
• Heavy Movable Structures Engineering services for heavy movable structures including bascule, swing, and vertical lift bridges, dam gates, locks, ferry slips, and cranes, with design, inspection, and repair capabilities.
• Building Enclosures Building enclosure engineering and architectural services including laboratory and field durability testing, investigation of rainwater penetration, thermal performance evaluation, whole building air pressurization testing, and facade ordinance inspections.
• Historic Preservation Historic preservation services including condition surveys, materials conservation analysis, restoration master plans, historic structure reports, National Register nomination, and contract documents for preservation projects.
• Building Science Building science services including coupled heat and moisture transport modeling, building air and smoke flow modeling, moisture intrusion investigations, building thermal envelope performance studies, and condensation risk analysis.
• Architectural Finishes and Materials Investigation, analysis, and design services for architectural finishes and materials, including field microscopy, metal detection, facade assessment, material sampling and laboratory analysis, and coatings evaluation.
• Enclosure Commissioning Commissioning services for verifying air and water tightness, energy efficiency, durability, constructability, and functionality of building enclosures throughout design and construction phases.
• Materials Evaluation and Testing Comprehensive materials evaluation and testing services including petrography, metallurgy, microscopy, analytical chemistry, organic and inorganic chemistry, and physical testing of construction materials, performed in WJE's accredited laboratories.
• Product Development, Evaluation, and Testing Product development and testing services including structural testing, physical and mechanical testing, material durability testing, chemical and petrographic testing, and large-scale prototype testing for product manufacturers and government partners.
• Structural Load and Fatigue Testing Laboratory structural load and fatigue testing services including static and fatigue load testing, 24-hour monotonic load testing, high- and low-cycle fatigue performance testing, and OSHA compliance testing.
• Building Enclosure Testing Field building enclosure testing including preconstruction performance verification, laboratory and field mock-up testing, thermal imaging evaluations, and post-occupancy performance evaluation.
• Condition Evaluation Field condition evaluation services including visual surveys, documentation of existing conditions, laboratory and field testing, service life assessments, repair recommendations, and prepurchase assessments.
• Nondestructive Evaluation Field nondestructive evaluation methods including ground penetrating radar, impact echo testing, half-cell corrosion potential surveying, infrared thermography, ultrasonic inspection, eddy current flaw detection, and magnetic particle testing.
• Instrumentation and Monitoring Field instrumentation and monitoring services including modal analysis, long-term structural health monitoring, structural load testing, vibration monitoring, strain and displacement monitoring, and environmental monitoring.
• Structural Load Testing In situ structural load testing services including cyclic load testing methods, facade access equipment testing for OSHA compliance, hydraulic ram testing, and water-loaded testing.
• Difficult Access and Drone Survey Difficult access services including industrial rope access teams for hard-to-reach locations, drone fleet with FAA-licensed pilots for architectural and structural inspections, photogrammetry, and thermal imaging.
• Construction Observation and Troubleshooting Field construction observation and troubleshooting services including technical assistance, construction document peer review, on-site observation, quality assurance testing, and contractor quality control evaluation.
• Failure and Damage Investigation Forensic failure and damage investigation services including cause and origin studies, stabilization design, damage assessment, failure simulation modeling, load testing, and structural analyses for insurers, owners, and attorneys.
• Litigation Consulting Forensic litigation consulting services including expert testimony, technical investigation, design and code review, laboratory testing, 3D graphic representations, accident reconstruction, and construction defect analysis for attorneys and insurance carriers.
• Design-Build Design-build services including building science consulting, design peer review, code analysis, construction monitoring and testing, curtain wall design, and quality control for new construction projects.
• Design Review Design review services including preliminary design recommendations, conceptual sketching, design phase detailing, value engineering studies, code compliance reviews, and third-party structural peer reviews.
• Repair and Rehabilitation Repair and rehabilitation services including preparation of construction documents, bid review, construction contract administration, construction management, and special inspections and testing.
• Systems and Components Design services for systems and components including building enclosure systems design, facade engineering, roofing and waterproofing, integration detailing, and seismic upgrade and retrofit.
• WJE Plannotate Tablet-based proprietary software application for efficient collection and annotation of inspection data with real-time sharing capabilities among team members, used as part of WJE's field inspection engagements.
• WJE CASLE Corrosion Assessment and Service Life Evaluation software for projecting the rate of material deterioration over time using analytical models developed from data collected through visual inspections, sampling, and laboratory testing of reinforced concrete structures.
• WJE CrackCalc API 579 Fracture Mechanics Software developed in-house for fracture mechanics assessment and fitness-for-service evaluations, used by WJE's metallurgical and applied mechanics team.
• Janney Technical Center Testing and Applied Research Services 70,000-square-foot state-of-the-art testing and applied research facility in Northbrook, Illinois, providing advanced testing and forensic capabilities for structures, construction materials, and manufactured components, including chemistry, petrography, metallurgy, concrete and mortar, corrosion, and structural testing laboratories accredited to perform more than 250 standardized tests (ASTM and other standards).

Quantifiable outcome

• More than 200,000 projects completed since founding in 1956
• +3 more outcomes

Named customers10 records

Segments7 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

One partnership is on record.

• HausBotscoreTechnology or Integration · 6 February 2026WJE partnered with HausBots, developer of the HB3 wall-climbing robot, to advance infrastructure inspection capabilities. ENR Profiles WJE and HausBots partnership as an example of how strategic collaborations enable better project outcomes. WJE enhanced its inspection capabilities with the addition of the HausBots HB3 climbing crawler robot for building and infrastructure inspections.

Scale indicators7 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Simpson Gumpertz & Heger (SGH): Structural engineering, materials science, and applied research consulting firm serving buildings, infrastructure, and industrial clients. Closest comparable to WJE in mission, size, and interdisciplinary engineering-with-in-house-lab model.
• Structural Group: Specialty contractor-engineer hybrid focused on repair and rehabilitation of concrete, steel, and building-envelope systems. Comparable through shared focus on extending service life of existing structures via WJE-recommended repair approaches.
• Engineering Systems Inc. (ESI): Forensic engineering and consulting practice focused on equipment, structures, and accident/failure analysis for insurance and legal clients. Overlaps with WJE's metallurgy, failure investigation, and litigation consulting capabilities.
• Thornton Tomasetti: Engineering consultancy applying structural and applied science to design, investigation, and rehabilitation of the built environment. Directly overlaps WJE's structural, materials, and forensic practices with similar institutional and infrastructure client base.
• Rimkus Consulting Group: Engineering and technical consulting firm covering failure analysis, structural and building-envelope issues, and construction defect investigations. Competitor in the forensics and built-environment consulting space.
• Exponent Inc. Engineering and scientific consulting firm specializing in failure analysis, accident reconstruction, and litigation support. Closely comparable to WJE's forensics and litigation consulting practice and shares similar expert-driven delivery model.
• CTL Group: Materials and engineering consulting firm spun out of the Portland Cement Association, serving construction materials and structural engineering clients. Comparable laboratory and materials engineering capabilities.

Broad incumbents

• AECOM: Global infrastructure consulting and engineering firm with broad transportation, buildings, and environment practices. Overlaps WJE through its structural, bridge, and construction engineering services but on a vastly larger scale and broader portfolio.
• Stantec: Global design and engineering consultancy with buildings, infrastructure, and environmental practices. Overlaps WJE through its structural and infrastructure advisory services as a much larger diversified incumbent.
• Jacobs Solutions: Global professional services firm with critical-infrastructure consulting, including transportation, water, and built-environment advisory. Broad incumbent competitor versus WJE's specialty consulting positioning.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat6 records

Key risks5 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UC8YDUbE8a-QjrAjEAx2KTxQ
• LinkedInlinkedin.com/company/35562
• Xx.com/wjeassociates

Compliance12 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

Subsidiaries3 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 Wiss Janney Elstner Associates