REI Engineering

What REI Engineering does

REI Engineering, Inc. is a privately-held, family-owned civil engineering, land surveying, and environmental consulting firm headquartered in Wausau, Wisconsin. Founded in 1972 as Northwest Petroleum Service and formally established as an environmental engineering practice in 1991 under the name Remedial Engineering, Inc., the firm was renamed REI Engineering in 2004, with "REI" standing for "Responsive, Efficient, Innovative." The company is led by President/Owner Jeny Nieuwenhuis Hardel and operates through six integrated service lines — Civil Engineering, Construction Management, Land Planning & Surveying, Environmental Consulting, Safety Compliance, and Emergency Response — delivered by a team of nearly 50 licensed professionals including Professional Engineers, Professional Land Surveyors, Hydrogeologists, Professional Geologists, and Licensed Drone Pilots. Service geographies span Wisconsin, Minnesota, and Michigan's Upper Peninsula, anchored by a 20+ year relationship with the Wisconsin Department of Transportation (WisDOT) and named private clients such as S.C. Swiderski, Kwik Trip, Redman Realty Group, and Scholfield Group.

The firm leverages standard civil and environmental engineering technology stacks: GPS and robotic total stations for surveying, licensed drone operations and LiDAR/photogrammetric tools for topographic data collection, AutoCAD Civil 3D and GIS for design, and engineered remediation systems (sub-slab depressurization, soil vapor extraction, dual-phase extraction, air sparge, carbon filtration) for contaminated-site cleanup. Construction management work includes nuclear density asphaltic testing and materials inspection. A 24/7 emergency spill response capability covers Wisconsin, Minnesota, and the Upper Peninsula of Michigan with rapid mobilization, distinguishing REI from purely civilian engineering peers.

Revenue is generated through project-based professional consulting fees, with the firm competing via competitive bidding for public-sector work (e.g., Kennedy Park Redevelopment, WisDOT interchanges) and direct engagement for private developer and institutional clients. Pricing is quote-based on project scope and complexity, with services often spanning the full lifecycle from initial site assessment and surveying through design, permitting, and construction administration. The customer base is diversified across municipal governments, WisDOT, commercial and industrial developers, real estate firms, agricultural operations, and community/recreational clients, mitigating single-customer dependency but with WisDOT representing a long-tenured anchor relationship.

Name

REI Engineering

Legal name

REI Engineering, Inc.

Website

https://reiengineering.com

Company type

Private

Founded year

1972

Operating status

Operating

Headcount range

11–50 employees

Short description

REI Engineering is a privately-held, family-owned civil engineering and environmental consulting firm based in Wausau, Wisconsin, serving municipalities, WisDOT, commercial developers, and industrial clients across the Midwest through integrated surveying, construction management, environmental, and emergency response services.

Ownership category

akta.pro rank

Product category

Civil Engineering Services

NAICS

Engineering Services (541330), Engineering Services (54133), Environmental Consulting Services (541620)

SIC

Services-Engineering Services (8711)

akta.pro primary industry

Civil & Structural Engineering Consulting (BPAHAIAA)

akta.pro secondary industries

Construction Management (Agency/Owner’s Rep) (IMAFAAAC), Environmental & Permitting Compliance During Construction (Erosion Control, Wildlife Mitigation, Monitoring) (EUAMAFAM), Reliability, Safety & Risk Engineering (RAMS/PSM) Consulting (BPAHAIAK)

Keywords

• Civil engineering services
• Land surveying
• Environmental consulting
• Construction management
• Site development

Headquarters

HQ city

Wausau

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Professional Consulting Services: REI Engineering generates revenue through professional consulting fees for civil engineering, land surveying, environmental consulting, construction management, and safety compliance services. Services are project-based with engagements ranging from site assessments through construction administration. The firm serves municipal, commercial, industrial, agricultural, and institutional clients with fees based on project scope, complexity, and duration.
2. Emergency Response Services: 24/7 emergency spill response services for hazardous materials and petroleum spills throughout Wisconsin, Minnesota, and the UP of Michigan. Services include rapid mobilization, containment, cleanup, waste disposal coordination, and detailed reporting for clients, insurance carriers, and regulatory agencies.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

REI Engineering is a multidisciplinary civil engineering and environmental consulting firm delivering project-based professional services including site planning, civil design, land surveying, construction management, environmental site assessment and remediation, safety compliance, and 24/7 hazardous spill emergency response to municipalities, commercial developers, industrial clients, agricultural operations, schools, and property owners across Wisconsin, Minnesota, and the Upper Peninsula of Michigan. The firm integrates engineering, surveying, environmental, and construction management disciplines in-house to support projects from concept and permitting through design, construction, and regulatory closeout.

Product overview

REI Engineering is a diversified consulting firm offering six integrated core service areas: Civil Engineering, Construction Management, Land Planning & Surveying, Environmental Consulting, Safety Compliance, and Emergency Response. The company operates as a single unified service practice where these core services are interconnected — civil engineering projects leverage in-house surveying and environmental teams, emergency response draws on environmental expertise, and construction management supports civil engineering delivery. Under the Civil Engineering umbrella are sub-services for site planning, landscape design, storage unit design, water resources, and agricultural engineering. Land Planning & Surveying encompasses land divisions, design & topography, construction layout, and state/federal surveys. Environmental Consulting includes site investigation & remediation, engineered remediation systems, UST expertise, sampling, due diligence, compliance, brownfield redevelopment, and asbestos inspection. The firm also offers a multi-department internship program for career development. All services are delivered by a team of licensed professionals using technologies including GPS, robotic total stations, drones, AutoCAD Civil 3D, and GIS.

Differentiator

Problem solved

Functional benefit

Products and services

• Civil Engineering
• Construction Management Full-service construction management and inspection including contract administration, materials testing, and documentation for site, roadway, and bridge construction projects with Wisconsin Department of Transportation expertise.
• Land Planning & Surveying Professional land surveying and planning services using GPS, robotic total stations, drones, and 3D modeling software to provide precise boundary, topographic, and construction layout surveys across Wisconsin.
• Environmental Consulting Environmental compliance and consulting services including site assessments, remediation planning, asbestos inspection, brownfield redevelopment, and regulatory navigation for contaminated properties.
• Safety Compliance OSHA compliance solutions including safety audits, customized training programs, and written safety plans covering hazard communication, lockout/tagout, confined space, fall protection, and fleet safety.
• Emergency Response 24/7 hazardous and petroleum spill cleanup services across Wisconsin, Minnesota, and Michigan's Upper Peninsula with rapid mobilization, containment, and waste disposal coordination.

Named customers6 records

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

One partnership is on record.

• Peyton's PromiseminorOthersLocal nonprofit that works with area organizations to fight hunger. REI's Harvest of Sunshine initiative collects non-perishable food donations for Peyton's Promise, with visitors encouraged to bring food items when harvesting sunflowers.

Scale indicators5 records

Recent moves9 records

Expansion highlights5 records

Market position

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/rei.engineering
• LinkedInlinkedin.com/company/rei-engineering-inc.

Revenue estimate

Valuation estimate

Number of profiles

Profiles10 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 REI Engineering