OUR TEAM

Our team brings over 275 years of collective industry experience, with more than 11GW of renewable projects developed across the United States.

We have built a company with a wealth of experience and knowledge by bringing together successful energy developers from all over the world with accomplished financial and legal experts. We believe that Onyx is the hardest working team in the industry with one clear goal: to bring safe, sustainable energy to our clients.

Leadership Team

Mary Beth Mandanas

Mary Beth Mandanas

Chief Executive Officer

Buck Fletcher

Buck Fletcher

Chief Financial Officer

Dan Swayze

Dan Swayze

Chief Operating Officer

Matthew Chen

Matthew Chen

Senior Vice President, Controller

Alfred Wang

Alfred Wang

General Counsel

Beth Cobb

Beth Cobb

Vice President, Human Resources

Business and Project Development

Kevin Cox Vice President, Business Development
Tung N’Vietson Vice President, Business Development
Noelle Paige Vice President, Project Development
Oliver Martin Associate
Nick Wigglesworth Associate
Julie Hurley Associate
Iyi Okunlola Associate
Martin Agrimis Analyst
Henri Rizack Analyst

Legal

Justin Traino Associate General Counsel

Strategy and Finance

Alexander Worthy Vice President, Strategy
Chris Looram Vice President, Finance
Kevin Li Associate
Ryan Allen Analyst

Engineering, Procurement and Construction

Gregg Cousoulas Senior Vice President, EPC
Megan Glasheen Vice President, Engineering
Scott Musich Director, Procurement
Thien Nguyen Director, Engineering
Luke Nichols Director, Project Management
Mustafa Akbari Project Engineer
Debra Dodgson Project Coordinator
Raif Armstrong Project Manager
Jaquay Brian Project Manager

Asset Management

Greg Fuller Senior Vice President, Asset Management
Sean McCormick Technical Asset Manager
Chris Haakinson Commercial Asset Manager
Ben Maritato Asset Management Analyst

Accounting

Jenna Casserly Director, Accounting
Genneve Torres Accounts Payable Specialist
Delano Baird Senior Accountant
Brian Molnar Manager, Technical Accounting and Financial Reporting

Administration

Michael Richards Office Manager

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