Using Our Experience to Engineer a Better Future

Bring your goals and projects to life on schedule and on budget, with an emphasis on quality and safety at every step of the journey.

At RETTEW, we’re leaders in delivering professional engineering consulting services and implementing effective strategies for your public or private projects across all sectors. We partner with you by taking time to fully understand your vision and business goals, which allows us to see the big picture, anticipate your needs, uncover potential challenges, and deliver innovative, efficient solutions.

We provide engineering consulting solutions to help you overcome challenges across a wide range of industries, including power and utilities, oil and gas, transportation, commercial development, water, and government. As the following projects demonstrate, our engineering consulting experts partner with you to reduce costs, ensure compliance, and improve efficiency.

Featured
Project

Advanced Health Care of Allentown

RETTEW served as the land development consultant for the award-winning Advanced Health Care of Allentown, a new short-term nursing and rehabilitation facility in Lower Macungie Township. The project supports Advanced Health Care’s mission of delivering specialized transitional medical care through thoughtfully planned, efficient, and compliant site design. The approximately 10-acre site required extensive due diligence and entitlement coordination prior to development. RETTEW’s civil engineering solutions were shaped by environmental conditions, access requirements, and long-term operational needs. RETTEW collaborated closely with the owner, architect, contractor, and…

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More Than Half a Century of Commitment to You

RETTEW was built on the principles of investing in people, producing better solutions, and using our experience and expertise to serve you better. This dedication has allowed us to expand into numerous industries and markets. We believe in collaboration, whether that’s among our engineering consultants, within our communities, or with our clients.

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Join Our Team

Join Our Team

Our collaborative teams are one of the reasons RETTEW is respected and trusted in the communities we serve. As a 100% employee-owned company, we are committed to our work and each other, all while helping our clients achieve their goals.

If you’re ready to make a difference, check out our open positions.

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Find Your Solution with RETTEW

Consistently ranked by Engineering News-Record as a Top 500 Design Firm, RETTEW has a big-picture understanding yet retains an eye for the smallest detail of every project. You can place your full confidence in our diverse team of engineers, environmental consultants, designers, surveyors, and other skilled specialists for demanding engineering consulting projects of all sizes in any market. Partner with us for your engineering consulting needs on your next commercial project.

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RETTEW NEWS & INSIGHTS

  • RETTEW Hosts Open House for New Williamsport Office

    May 19, 2026

    RETTEW welcomed employees, clients, partners, and community members to our Williamsport, PA, office on Thursday, May 7, for an open house celebrating the office’s relocation to 715 Washington Boulevard. The event gave attendees an opportunity to tour the new office space, connect with RETTEW team members, and enjoy food, drinks, and conversation in a relaxed…

  • Focus on Funding – May 2026

    May 12, 2026

    This month’s issue is all about growing forward, with funding opportunities that support greener projects, walkable places, and thriving local food systems.

  • Hiring an Engineering Consultant for Land Development Projects: Reducing Risk Before You Break Ground

    April 23, 2026

    Land development is a complex process that blends financial, legal, environmental, and engineering expertise. Before committing to a site, a thorough evaluation helps uncover risks early and prevents costly setbacks in commercial, residential, or industrial projects. A multidisciplinary consulting team brings a holistic perspective by combining geotechnical insight, regulatory compliance, and site planning and design…

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