Pat Convery, PE

Patrick Convery
President & Chief Engineer
Pat Convery has over twenty-seven years of engineering experience including twelve with a major interstate pipeline operator, and eight with multi-discipline engineering firms. In addition to his Project Management Experience, he has served as a plant operator, construction inspector, operations engineer, and engineering manager. He has project management experience with a system operator, consulting engineers, EPC contractors and a product manufacturer. He has provided consulting services to major facilities operators in the areas of strategic planning, project development, acquisitions, operating efficiency, facility siting (including LNG facility siting) and many other areas. Mr. Convery has led the successful design and construction of compressor stations, meter & regulator stations, LNG plant facilities, in-line inspection facilities, major bridge attachments, and specialty gas system installations and GIS systems for pipelines. He has led teams of engineers, designers, drafters, construction forces, material managers, and other professionals in the completion of many safe, highly functional and durable energy infrastructure projects. Pat graduated from Manhattan College and holds graduate degrees from Tufts University and Harvard University. He is a Licensed Professional Engineer in Massachusetts, Maine, New Hampshire, Vermont, Rhode Island, New York, New Jersey and Texas. He is a Chartered Engineer and a Member of the Institute of Engineers of Ireland.

Jon Perron

John Perron
Vice President
Jon Perron has over 22 years of professional experience in project management, easement acquisition, civil engineering and surveying. He started his professional career in the field supporting natural gas pipelines in phases of design, construction, as-built and rehabilitation. From there, he worked his way up to managing projects in the energy industry. Some of his responsibilities have been meeting schedule and budget requirements for FERC filings as well as various portions of federally regulated and state regulated pipeline and power line projects. Since 2001, Mr. Perron has managed a group focused on easement acquisition efforts on public and private properties for various clients. This management included coordination between the client, engineering, legal and property owners. Jon graduated from the University of Massachusetts and holds a Bachelor of Science degree in Civil engineering.



Steven Sawyer

Steve Sawyer
Vice President
Steven Sawyer has approximately 23 years of experience in a wide variety of surveying, mapping and pipeline engineering applications. Prior to his being part of the startup team at Cornerstone, Steven worked for over 22 years for a mid-sized engineering consulting firm. During his tenure there, Steven held positions that began as an entry level field survey technician, continued as a field survey Party Chief, Project Engineer, Field Engineer, Project Manager, Operations Manager and Market Sector Manager. As the leader of the Energy Infrastructure Market Sector, Steven managed large and small scale projects as well as managed administrative, staffing and financial aspects of all projects within the Energy Infrastructure group. The group comprised 50 to 75 staff members with annual revenues of eight million to fourteen million dollars, and operated from up to seven offices.

He is involved in every step of energy infrastructure projects, from the proposal process, through engineering, construction, commissioning and maintenance. Mr. Sawyer is successful in ensuring that the client’s expectations of quality are met and surpassed. His responsibilities include pipeline and power line routing, field surveys, right-of-way acquisition, engineering and design efforts as well as oversight of project reporting, deliverables and cost controls.

In addition to his extensive Energy Infrastructure project experience, Mr. Sawyer is also well versed in surveying engineering techniques, equipment, and software including AM-FM/GIS software, numerous mapping platforms, GPS operating systems and adjustment packages as well as numerous field survey instruments and data collection systems.

Mr. Sawyer is a graduate of the University of Maine in Orono.