At RETTEW, our core values guide every decision, fuel every project, and empower every employee.

Expertise and ability are only part of what make our firm successful: It’s steadfast commitment to these beliefs that drives our people to exceed expectations, and the result is consistent client delight.

RETTEW’s project management, communication, and dedication to our timeline was excellent. They treated the project like their own. – Kate Donnelly, Operations and Planning Manager, Longwood Gardens.

RETTEW values:


Putting people first, both inside and outside the office, fosters collaboration and creates respect, trust, humility, and open communication.


We keep aiming higher. By empowering our employees to rethink norms and drive change, we continuously improve our services and processes to deliver the highest quality with flawless execution.


A company isn’t successful unless it passes on a healthy, sustainable organization to future generations. We nurture the growth of our people, resources, and community while caring for the environment.


Our goal is uncompromising: zero incidents. We train employees, partner with clients, and employ best practices to eliminate injury to people and damage to assets. A safe work environment is paramount.


We keep our promises, act honestly, and sustain the highest moral and ethical standards.