Whitney Sisto

Whitney Sisto

Office Manager & Assistant Project Manager


As e3i’s Office Manager, Whitney manages the daily operations of the office while also providing project coordination and marketing support to all internal teams.

Whitney’s role requires her to contribute to all areas of e3i. This means there is never a dull moment! Her primary responsibility is to provide operational and administrative support. Whitney’s understanding of the firm’s inner workings allows her to develop policies and procedures to advance e3i’s reputation as a responsive firm catering to technically complex systems. She also works closely with the engineering teams and manages the firm marketing efforts, including proposals, social media, and the firm’s web presence. Whitney leads the planning of all e3i events, from a client-facing fundraiser to a fun outing for e3i employees. In her role for this fast-paced engineering firm, Whitney’s work ethic and attention to detail keeps operations running seamlessly so that partners, directors, and other team members can focus on what they do best for their clients.

Whitney is an avid volunteer and loves giving back to the community. She was a long-time volunteer at MGH’s inpatient pediatric unit and currently serves as an internal champion for e3i’s philanthropic efforts. When she’s not in the office, you can probably find Whitney in her garden or experimenting in the kitchen. Her latest creations include a potato, bacon and scallion frittata and chili lime grilled shrimp tacos with jalapeño guacamole verde sauce. Yum!