Forty Under 40


Inside the Mind and Philosophy of Jimmy Moore

Founder & CEO of Petra Custom Builders

In the ever-evolving realm of construction, where ego can sometimes overshadow true craftsmanship, there are some who choose a different path. Jimmy Moore didn’t want his company to be just another addition to the roster of names. At 36, the founder of Petra Custom Builders, based in Boulder, Colorado, has challenged convention, crafting a legacy that’s as solid as the stone the name represents.

Petra Custom Builders Jimmy Moore Founder

Servant Leadership: A Natural Gift

“I recognize my natural gift is leadership, specifically servant leadership,” Jimmy reflects. His voice resonates with a deep sense of purpose. “What I value most is empowering individuals to grow authentically. It makes us better husbands, wives, partners, parents—really, people in general.”

As he talks about his team, there’s a sense of genuine camaraderie. It’s clear that this is a leader who sees himself as a part of a whole, not the pinnacle of a hierarchy. “While my team entrusted me to be the leader, I am in many ways more dependent on them than they are on me,” he said, underscoring that point.

A Humble Name for a Bold Vision

With a construction industry focused on self-aggrandizement, Jimmy set out early on to create something different. “The construction industry has an ego issue, and so I didn’t want the company to have my name,” he states matter-of-factly. The decision to name his venture ‘Petra Custom Builders’ was both a departure from convention and an homage to heritage.

Explaining the name choice, he elaborates, “The Hebrew word for rock is Petra, which is also an ancient city built by local craftsmen that still stands today… And then there’s the Boulder Flatirons, which are incredible and remind us of the community we serve.”


Setting the Foundation for More Great Leaders

As a Forty Under 40 winner, Jimmy Moore’s story is a testament to the transformative power of servant leadership and a name chosen not for vanity, but for its enduring symbolism. Petra Custom Builders isn’t just constructing homes; they’re constructing a narrative of collaboration, humility, and community, acting as an inspiration for leaders yet to come.


Petra Custom Builders is committed to developing long-term relationships with our customers and ensuring that each home is a reflection of your vision.

Sam Marks : Superintendent

Sam grew up in North Alabama where he was introduced to construction at a young age. Coming from a family of construction workers, he has been on and around job sites his entire life.  After graduating from Warren Wilson College he stayed in the construction field working under electricians, master carpenters, and framers. He made the jump from carpenter to superintendent while living in Utah working for a well-respected custom home builder. His favorite part of custom home building is the technical problem-solving needed to overcome job site challenges and the personal connections he’s able to make with every homeowner. When not at work, Sam can be found doing anything and everything outdoors with his wife, Claire, and dog, Merle. He especially enjoys all types of biking, running, bird watching, and reading.

Sara Hugo : Designer

Sara grew up in California’s Bay Area before her passion for design took her to Reno, Nevada where she pursued a degree in Interior Design. After Sara graduated from the University of Nevada in 2012 she moved to Colorado where she has been working as an Interior Designer ever since.
To bring your unique vision to life Sara approaches design as a collaboration! She believes in planning ahead, clear and concise communication, organization, and making the process enjoyable. Sara has dedicated herself to learning and appreciating all areas of the business and brings this expertise to all her interactions. Her approachable style has served her well in working with clients, vendors and trade partners over her 10+ year career.  Outside of the design world, you can find Sara crafting candles, running, camping, or spending time with her husband and two dogs.

Mark Wissell : Estimator

Mark began his career in the building trades working as a carpenter for a small residential contractor in the Minneapolis suburbs. This introduction to a profession working with his hands, combined with a thirst for knowledge, led him to build a diverse set of skills and contribute to several commercial millwork firms in roles ranging from fabrication, drafting, design, estimating, project and account management. He is a cabinet maker, furniture maker, and aspiring artist currently creating metal wall-hanging landscape pieces.

A Midwesterner transplanted to Colorado in 2015 with his wife Karen, Mark enjoys an active outdoor lifestyle that living along the Front Range affords.