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

Strata Symphony

The Strata Symphony luxury apartments, comprising a two-level parking garage with four floors of apartments above, represent a key component in the revitalization of downtown Allentown. This project on just .56 acres faced numerous challenges including integrating modern infrastructure within a historic, urban setting and addressing environmental sustainability. RETTEW’s expertise ensured efficient land use, optimizing space for residential units while incorporating green spaces and community areas. We implemented innovative stormwater management techniques, such as a green roof, to mitigate runoff and protect local waterways, enhancing…

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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 Announces Fourth Quarter Above & Beyond Award Winner: Sam Bombara

    December 02, 2025

    RETTEW is proud to recognize Sam Bombara, Natural Sciences Team Lead, as our Fourth Quarter Above & Beyond Award winner. This award honors employees who consistently demonstrate excellence in alignment with RETTEW’s vision, purpose, and core values, not just in a single moment, but through their ongoing commitment and impact. Sam earned this distinction through…

  • First “Small Marks – Mighty Impact” Grant Awarded to Tiny Tykes Essentials

    December 01, 2025

    The RETTEW Make Your Mark Team is pleased to announce Tiny Tykes Essentials is the inaugural recipient of our new “Small Marks – Mighty Impact” grant program. Through this $1,000 grant, the organization will continue providing essential items, including diapers, to babies and toddlers in need. We extend special appreciation to Kristen Bodkin, PT, Health,…

  • Building Tomorrow: The Role of Civil Engineering for Data Centers

    November 14, 2025

    The era of the space race may be fading, but the digital race to artificial intelligence (AI) technology is just beginning. Increasingly sophisticated data centers, with complex site engineering needs, are at the heart of this global competition. Ambitious data center projects like the $500 billion Project Stargate continue to demonstrate the need for the…

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