Business Details
35 Years
experience
Emergency
services
Your Trusted Partner for Environmental Solutions
REI Engineering has built a reputation for excellence through decades of dedicated service. Founded in 1991, our family-owned business combines technical expertise with a client-focused approach to deliver comprehensive solutions in civil engineering, land surveying, environmental consulting, and safety services. Our team of 45+ professionals brings over 30 years of collective experience, ensuring projects are completed on time, within budget, and to the highest standards. We prioritize a culture of honesty, respect, and innovation, which has earned us recognition as the 2002 Small Business of the Year by the Wausau Region Chamber of Commerce. Our commitment to community involvement is evident through initiatives like the Sunflower Project, which promotes kindness and supports local charities.With specialized capabilities in regulatory compliance, site remediation, and construction management, we serve clients across Wisconsin and beyond. Our LEAP program fosters continuous professional development, while our 24/7 emergency response team ensures readiness for urgent environmental challenges. This combination of technical proficiency, ethical practices, and community engagement has resulted in a 100% client satisfaction rate and numerous repeat clients. We maintain transparency through regular project surveys and direct communication channels with regulatory agencies. Our multidisciplinary approach enables us to provide end-to-end solutions from initial planning to final implementation.
Services
Civil Engineering
Land Surveying
Environmental Consulting
Safety Consulting
Emergency Response
Water Resources Management
Asbestos Inspection
Site Remediation
Regulatory Compliance
Construction Engineering
Details
- Year established: 1991
Highlights and features
- We offer 30+ years of experience in environmental engineering and consulting
- Our multidisciplinary team handles projects from planning to completion
- We maintain 100% client satisfaction through transparent communication
- Our 24/7 emergency response team addresses urgent environmental incidents
- We combine technical expertise with community-focused sustainability practices
What people say
Skilled professional services
Consistent communication
Great partner
Prompt response times
Smooth process
Services
Civil Engineering
REI's civil engineering division provides comprehensive solutions for land development, transportation projects, and municipal infrastructure. Our team of registered engineers and CAD specialists deliver site-specific designs that balance budget constraints with performance requirements. We manage projects from initial planning through construction, ensuring compliance with local, state, and federal regulations while maintaining open communication with all stakeholders.
Land Surveying
Our professional land surveyors utilize GPS and robotic technology to deliver precise measurements for property boundaries, construction layouts, and topographic mapping. The team provides comprehensive surveying solutions for commercial, residential, and industrial projects across Wisconsin. With integrated engineering and environmental support, we offer end-to-end services that ensure accurate data collection and regulatory compliance throughout the development process.
Environmental Consulting
REI's environmental consultants help clients navigate complex regulatory requirements for site assessments, contamination remediation, and compliance management. Our certified professionals conduct Phase I/II assessments, manage underground storage tank systems, and develop spill prevention plans. We specialize in regulatory permitting and funding acquisition for contaminated site redevelopment while maintaining continuous compliance with evolving environmental standards.
Emergency Response
Available 24/7, our emergency response team specializes in petroleum and hazardous material spill containment and cleanup. We provide rapid mobilization of equipment and personnel, regulatory notification, and complete documentation for insurance and compliance purposes. Our services include site assessment, waste disposal coordination, and remediation strategies that minimize environmental impact while ensuring regulatory compliance with Wisconsin DNR requirements.
Safety Consulting
REI's safety consultants offer comprehensive OSHA compliance solutions including hazard communication programs, lockout/tagout training, and respiratory protection services. We develop customized safety protocols for industrial, construction, and agricultural sectors while providing on-site audits and training programs. Our services ensure workplace safety compliance through regular inspections, incident documentation, and tailored safety management systems that reduce workplace injuries and regulatory risks.
People
Jeny Nieuwenhuis
President/Owner
As co-founder and president, Jeny Nieuwenhuis leads REI's strategic direction while maintaining the company's founding values of integrity and client service. With over 30 years in the industry, she has driven the firm's evolution from a petroleum service provider to a multidisciplinary engineering firm. Her leadership emphasizes professional development through initiatives like the LEAP program and community engagement through projects like the Sunflower Field initiative.
Ken Lassa
Vice President
Ken Lassa brings extensive environmental expertise as Vice President, specializing in site remediation and regulatory compliance. With over 25 years at REI, he has managed complex environmental projects and developed the company's emergency response capabilities. His technical leadership ensures clients receive practical solutions that balance regulatory requirements with operational needs while mentoring junior staff in best industry practices.
Brian Bailey
Environmental Services Department Manager
As Environmental Services Manager, Brian Bailey oversees REI's environmental consulting team. He specializes in regulatory compliance, site assessments, and remediation strategies. With expertise in Wisconsin DNR regulations, he ensures clients receive comprehensive environmental solutions while maintaining the company's commitment to technical excellence and environmental stewardship through sustainable project execution.
Jim Borysenko
Civil Engineering Department Manager
Jim Borysenko leads REI's civil engineering division with expertise in infrastructure development and municipal projects. He manages teams delivering land development solutions from concept to completion while ensuring compliance with regulatory standards. His leadership focuses on innovative design solutions that maximize property value while maintaining budget and schedule efficiency for both public and private sector clients.
Josh Prentice
Land Surveying Department Manager
Josh Prentice directs REI's surveying operations, specializing in precision measurements for complex development projects. With expertise in GPS and 3D laser scanning technologies, he ensures accurate data collection for construction layouts and boundary determinations. His team provides critical support for REI's multidisciplinary projects while maintaining Wisconsin's highest standards for surveying accuracy and regulatory compliance.
Questions
What environmental services does REI Engineering offer?
REI provides site assessments, contamination remediation, regulatory compliance management, underground storage tank services, and spill response. We handle projects from initial assessment through remediation and regulatory closure.
Do you provide emergency environmental response services?
Yes, our 24/7 emergency response team handles petroleum and hazardous material spills with rapid mobilization, regulatory notification, and complete cleanup documentation.
What areas do you serve?
While based in Wausau, Wisconsin, we serve clients throughout Wisconsin including Northern Wisconsin, Madison, and Door County communities.
How does REI ensure project compliance with regulations?
Our team maintains expertise in evolving environmental regulations and works closely with agencies like the Wisconsin DNR to ensure all projects meet federal, state, and local requirements.
What makes REI different from other environmental firms?
We combine technical expertise with community focus, offering multidisciplinary services under one roof while maintaining a 100% client satisfaction rate through transparent communication and proven solutions.
Can you assist with environmental compliance audits?
Yes, we conduct comprehensive environmental compliance audits covering air quality, stormwater management, hazardous waste, and SPCC requirements to help businesses avoid penalties and maintain regulatory compliance.
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