Experienced and Knowledgable

CSL Environmental & Geotechnical Ltd. (CSL) is an independently owned multi-disciplinary engineering firm located in Northwestern Ontario. CSL prides itself in having friendly, approachable staff, which leads to strong customer client relationships.

As part of CSL’s ongoing commitment to staying current in all aspects of geotechnical and environmental engineering we utilize the latest technology, data and software packages to provide the most accurate information to our clients.

We have a broad client base which includes First Nation Communities, Mining Companies, Consultants, Contractors, Developers, Construction Managers, Architects, Government Agencies and private individuals.

Our aim at CSL is to supply high quality site investigation services tailored to meet the needs of our clients.

Our Values

Client Satisfaction

We are committed to our clients and servicing their needs. We are dedicated to not only achieving, but exceeding client expectations.

Employee Satisfaction

Our company’s most important and valued resource is our experienced and trained professional, technical and support staff.


Built on trust, respect, and collaboration, we have positive, long-term relationships with our customers, joint-venture partners, business partners, subcontractors, and suppliers.


We employ the highest level of professional and ethical standards and believe that our projects reflect who we are as a company. We are dedicated to competence, honesty, fairness, dependability and excellence.


We are committed to striving for excellence and to doing it right the first time. Our reputation stands on our delivered services to every client and every community we serve.

Social Responsibility

We are committed to making a positive contribution to the well being of our staff as well as the communities in which we operate in. We strive to improve the quality of life in communities where we work by respecting local cultures, engaging people, and protecting the environment.

We’re committed to strong
Indigenous Relations

CSL Environmental & Geotechnical Ltd. (CSL) is committed to providing opportunities for First Nation communities to assist with economic development and community capacity building and wellness through the employment of Aboriginal peoples and support for development of Indigenous businesses.

CSL currently participates with First Nation communities through joint venture agreements and informal partnership.

Indigenous Relations