Our History
Environmental Services Team Leaders
Geotechnical Services Team Leaders
Construction Services Team Leaders
Business Development Team Leader
The key staff at Cornerstone Earth Group, Inc. is accustomed to accommodating a large volume of work on projects that require immediate attention and we are always prepared to take responsive action. We are recognized as one of the more innovative and successful firms at developing creative approaches to cost-effectively mitigate geotechnical and environmental issues. We achieved this reputation based on our extensive local experience, practical skills in assessing properties, familiarity, and long-term successful relationships with local regulatory agencies, and, most importantly, willingness to learn about your needs.
Again thanks, and I should be thanking you and your team for all of the help to make me successful. The relationship has been amazing for me and always top notch service and results.
— Partner and Project Manager, Signature Development and President, The Cherrybrook Group
Cornerstone Earth Group, Inc. has built its reputation on providing cost-effective and responsive geotechnical engineering and environmental services to the development community. We are committed to meeting your project requirements and schedule. Our key staff is accustomed to accommodating a large volume of work on projects that require immediate attention and we are always prepared to take responsive action.
We are recognized as one of the more innovative and successful firms at developing creative approaches to cost-effectively mitigate geotechnical and environmental issues. We achieved this reputation based on our extensive local experience, practical skills in assessing properties, familiarity, and long-term successful relationships with local regulatory agencies, and, most importantly, willingness to learn about your needs.
Again thanks, and I should be thanking you and your team for all of the help to make me successful. The relationship has been amazing for me and always top notch service and results.
Partner and Project Manager, Signature Development and President, The Cherrybrook Group

Meet Ron
Ron L. Helm – P.G., C.E.G., C.HG.
CEO

Meet Peter
Peter Langtry, P.G., C.E.G ., C.HG.
Senior Principal Geologist

Meet Kurt
Kurt M. Soenen
Vice President,
Senior Principal Engineer
Senior Principal Engineer

Meet Chris
Chris J. Heiny, P.G.
Principal Geologist

Meet Danh
Danh Tran
President & Senior Principal Engineer

Meet John
John R. Dye, P.E., G.E
Senior Principal Engineer

Meet Erin
Erin L. Steiner , P.E., G.E.
Senior Principal Engineer

Meet Nicholas
Nicholas S. Devlin , P.E
Principal Engineer

Meet Matthew
Matt Schaffer, P.E., G.E.
Principal Engineer

Meet Maura
Maura F. Ruffatto, P.E.
Principal Engineer

Meet Ron
Ron Massone
Vice President,
Senior Principal Construction Services
Senior Principal Construction Services

Meet Sheamus
Sheamus P. Mullen
Principal Construction Services

Meet Forrest
Forrest Leblo
Principal, Lab Services

Meet Robert
Robert Fontanilla, CPSM
Principal, Business Development
Our History
Cornerstone Earth Group, Inc. has built its reputation on providing cost-effective and responsive geotechnical engineering and environmental services to the development community. We are committed to meeting your project requirements and schedule. Our key staff is accustomed to accommodating a large volume of work on projects that require immediate attention and we are always prepared to take responsive action.
We are recognized as one of the more innovative and successful firms at developing creative approaches to cost-effectively mitigate geotechnical and environmental issues. We achieved this reputation based on our extensive local experience, practical skills in assessing properties, familiarity, and long-term successful relationships with local regulatory agencies, and, most importantly, willingness to learn about your needs.
Again thanks, and I should be thanking you and your team for all of the help to make me successful. The relationship has been amazing for me and always top notch service and results.
Partner and Project Manager, Signature Development and President, The Cherrybrook Group
Environmental Services Team Leaders
Geotechnical Services Team Leaders
Construction Services Team Leaders
Business Development Team Leaders