Leadership
Principals
Herold Engineering Limited consists of a highly skilled group of professionals and along with Associates and support staff have the expertise required to design and manage engineering projects from their initial concept to project completion across our three office locations. Still to this day, Herold Engineering continues to be 100% owned and operated by its employees.

We understand the need to walk the talk
We believe in Quality Engineering, Innovative thinking, and advanced computer technology. With an on-going corporate mandate to improve our technical credentials, our skills are reflected in our cost-effective designs.
We are all about Relationships
The Principals at Herold Engineering are consistently striving to build on and create new relationships to better serve our clients whether they are government agencies, institutions, businesses or individuals.
We support our Staff so they can give back
Expertise and innovation are key ingredients to our consulting firm, but commitment to our community and staff is what has made our firm a leader. Our Leadership group supports our staff to volunteer their time in many non-profit boards and give back to the community where we live, work and play.
Meet the principals
Our Principals

Kate Ulmer
P.Eng., Principal, Senior Structural Engineer

Lee Rowley
P.Eng., M.I.Struct.E., MICE., LEED AP., Managing Principal, Senior Structural Engineering

Patrick Ryan
P.Eng., Principal, Senior Civil Engineer

Sean Mahon
P.Eng., Principal, Senior Structural Engineer

Craig Work
P.Eng., Principal, Senior Industrial, Marine, Bridge Engineer

Sean Herold
P.Eng., Principal, Senior Structural Engineer

Jarrod Koster
P.Eng., Principal, Senior BE/ Structural Engineer
