Susanne Kelley


Susanne Kelley has managed this full-service environmental consulting firm since its founding in 2000.  As an Environmental Consultant and Laboratory Analyst with substantial field experience, Ms. Kelley plans, develops and establishes the policies and objectives that drive the success of Sienna.  She provides oversight and direction for all company operations including guidance for management personnel. She has more than 20 years of experience in conducting environmental inspections, project oversight and monitoring, laboratory analysis, remediation project design, and Indoor Air Quality Management. She is a valued member of the Buffalo community and has garnered many accolades for her work both in Environmental Consulting as well as in the community at large. Her own high performance standards have established Sienna as a valued consultant throughout the region with many ongoing client relationships. 

Sean Fitzgerald

Operations Manager

Mr. Fitzgerald is the Operations Manager at Sienna Environmental Technologies and serves as the Primary Point of Contact for projects. Sean oversees all of Sienna's operations, from Contract Initiation through Construction Administration. He is responsible for personnel training and developing Sienna's Standard Operating Procedures. Mr. Fitzgerald has over 7 years of experience as a Project Manager and Field Supervisor.

Catherine Schultheis

QAO / Marketing / Administration

As the Quality Assurance Officer (QAO) for Sienna’s laboratory, Catherine is responsible for ensuring that all quality control (QC) procedures are performed at the required frequencies and in accordance with Standard Operating Procedures. She uses her extensive laboratory experience to maintain the highest possible standards to collect, monitor and review all data for reporting. Catherine provides technical writing services to our Operations Department; and marketing and administrative support for all departments. Her excellent technical, organizational and interpersonal skills give her the ability to effectively communicate with clients in a timely and dependable manner.

Brian Jones

Senior Project Manager

As Senior Project Manager, Mr. Jones works with A/E firms, building owners, and agencies to develop contract documents to remediate hazardous materials. He is responsible for overseeing inspections, developing designs and construction administration. He brings over 15 years of experience working in both environmental and engineering fields. His background developing design drawings for engineering firms has given him extensive knowledge in a variety of disciplines as well as proficiency in AutoCAD.  Brian is also experienced in conducting indoor air quality studies and mold investigations.

Jennifer Cocco, PHR, SHRM-CP


As Shared Services Manager, Ms. Cocco is responsible for responsible for the smooth day-to-day running of the business from a human resource, financial, and administrative perspective. She ensures that the shared services function is operating in a compliant, efficient and cost-effective manner that supports the company’s business objectives and goals. Ms. Cocco has more than 15 years of business and human resources experience in the A/E/C industry, which she utilizes to implement best practices related to recruitment, retention and employee engagement as well as review and streamline processes and procedures.