Paul Costa

President and CEO | Assessment Innovator | Youth Sports Coach

Contact Paul
30 years of industry experience
120K+ Miles of Pipeline Assessment

We thrive on delivering projects that save money for public water and wastewater utilities."

Paul is the President and CEO of RJN Group, where he leads the company’s strategic growth and operational performance. With more than 35 years of industry experience spanning utilities and consulting, Paul has deep expertise in the engineering and management of water and wastewater infrastructure projects.

Since joining RJN in 2002, Paul has advanced through multiple leadership roles, including client management, practice leader, and executive vice president, before assuming the role of CEO in 2022. His leadership is defined by a passionate commitment to building a strong culture, driving innovation, and maintaining a client-focused approach.

Paul embodies RJN's core values of ownership, collaboration, care, and balance. He takes ownership of the company's vision, ensuring every project reflects RJN's high standards. His emphasis on collaboration has cultivated a united and empowered team, working together to achieve common goals. Paul's genuine care for both clients and employees is evident in his dedication to creating a supportive and inclusive work environment. He also champions balance, promoting a healthy work-life dynamic that keeps the team motivated and engaged.

Under Paul’s guidance, RJN has united around a shared purpose: delivering smart, technology-driven pipeline solutions that help communities maintain safe, reliable, and sustainable utility systems. His vision continues to position RJN as a Best Place to Work employer for our employee owners and a trusted partner to our clients in addressing the challenges of aging infrastructure.

Credentials & Certifications

  • Past Chair of the Collections Committee for the Water Environment FederationGolden Manhole Award recipient from the Water Environment Federation
  • MBA in Finance from Northeastern University, Boston, Massachusetts
  • MS in Environmental Engineering from Northeastern University, Boston, Massachusetts
  • BS in Marine Engineering, Massachusetts Maritime Academy, Buzzards Bay, Massachusetts

Paul's Projects

Wastewater, Flow Monitoring
212 Billing Meter Sites

Meet RJN Experts

Liz Aguin, PE

Vice President of Operational Support

Contact Liz
Kraig Moodie

Regional Vice President

Contact Kraig
Todd Leistner

Chief Financial Officer

Contact Todd