As founder and president of Momentum Builders SF, Jamie combines over 26 years of experience with a lifelong passion for building.

Jamie started his career in construction right out of high school. Having graduated, he joined a custom homebuilder as an apprentice framer and began to learn the tools of the trade. Jamie's ability to multi-task without compromising the quality of work, and his unique combination of administrative and technical skills saw him rise through the ranks and eventually hold position as senior project manager in just a few years.

Jamie's career spans both non-profit and corporate sectors. He was involved with Habitat for Humanity in the bay area, built more than 300 homes and led high-profile projects such as the City Walk Project and Thomas Berkeley Square in Oakland.

Jamie's corporate experience includes successful partnerships with several reputable commercial and residential contractors in Northern California. He founded Momentum Builders SF in 2004, in response to a growing yet unmet demand for construction professionals that prioritize service over profits. Jamie has been responsible for the vision and growth of the company since its inception and continues to be responsible for the oversight of business development and construction operations.

A veteran with close to two decades of construction experience, Matt Howerton brings a comprehensive and well-rounded skill set to the Momentum Builders SF team. Matt joined Momentum Builders SF as construction manager in 2014.

Matt's career is multifaceted and extensive. As a commercial builder, Matt specialized in upscale and mix use buildings and retail establishments, and in the residential remodeling industry, he was involved with restoration work for over eight years with insurance companies. Equally at ease on-site or in an office, Matt is a complete package with highly-developed administrative, organizational and client service skills.

He is an expert in construction practices, understands how to work with city and county offices, zoning requirements, permits, inspections and the submission process. At Momentum Builders SF, he is able to manage multiple projects and crews simultaneously and optimize a project for efficiency from all fronts.

Matt's experience with the hiring process and team management allow Momentum Builders SF to build a fine-tuned, high-performing team for any project.

John Callahan joined Momentum Builders SF in 2018 as construction manager. John's experience in the construction industry spans over 25 years and encompasses diverse projects and responsibilities. Prior to joining Momentum Builders SF, John worked with several local general contractors, John supervised a vast array of custom homes in Healdsberg, Calistoga and Sonoma Counties.

John's hands-on skills and managerial streak allow him to act as a natural leader on-site. With both public and private sector experience, John is able to instinctively understand issues and considerations in different project types, and to develop an on-site work culture attuned to the nature and the objectives of the project.

He is able to seamlessly interface between disparate teams and flexible enough to thrive under challenges, such as budget constraints, strict quality standards, and challenging schedules. Marco's years of project management experience allow him to get the best out of Momentum Builders SF's superintendents and help them become an integral part of the Momentum Builders SF team.