Cannon Expands Leadership Team to Strengthen Transportation, Municipal, and Surveying Services

06/29/2026

Cannon is pleased to announce the addition of four experienced leaders to the Southern California team: Giuseppe Canzonieri, PE; Craig Siefert, PE; and Greg Sebourn, PLS. Together, they bring more than 75 years of combined experience in infrastructure, transportation, municipal services, construction management, and surveying.

These strategic additions reinforce Cannon’s commitment to delivering Reliable Responsive Solutions and providing clients with experienced leadership, technical excellence, and responsive service across every stage of project delivery.

Our clients depend on Cannon to help solve complex infrastructure challenges and deliver successful projects for their communities. The addition of Giuseppe, Craig, and Greg expands our capabilities and strengthens the expertise we bring to transportation agencies, municipalities, utilities, and private-sector clients throughout California.


Giuseppe Canzonieri, PE

Regional Manager of Public Infrastructure

With more than 20 years of transportation engineering experience, Giuseppe Canzonieri supports public and private-sector clients across Southern California. His expertise includes roadway design, complete streets, and active transportation projects, with extensive experience leading multidisciplinary teams from planning through construction.

Giuseppe works closely with transportation and municipal clients to deliver practical, well-coordinated infrastructure solutions.

Connect with Giuseppe
Email: [email protected]
LinkedIn: Giuseppe Canzonieri

 

Craig Siefert, PE

Plan Check Manager

Craig Siefert brings more than two decades of experience supporting municipalities through plan review, permitting, and public works coordination. His background includes water, sewer, utility, and roadway improvement projects, helping agencies navigate complex infrastructure and development requirements.

Craig provides plan review, infrastructure coordination, and development support services to municipal clients throughout the region.

Connect with Craig
Email: [email protected]

 

Greg Sebourn, PLS

Regional Manager of Surveying

Greg Sebourn offers more than 25 years of surveying and mapping experience supporting infrastructure and land development projects across the public and private sectors. His expertise includes boundary, right-of-way, topographic, and construction surveying, as well as leading teams on complex, community-focused projects.

Greg supports surveying and infrastructure clients throughout Southern California, helping deliver accurate, dependable data that serves as the foundation for successful projects.

Connect with Greg
Email: [email protected]
LinkedIn: Greg Sebourn