Commission-based real estate is outdated. So we built a better brokerage.

Cayce Ullman

CEO

Before joining ListingSpark, Cayce served as SVP of Product at AlienVault, a threat intelligence company acquired by AT&T in 2018. He previously co-founded and served as CEO of Plex, the popular media streaming platform, and was CEO of PostX, an encrypted email company acquired by Cisco. Cayce has also held senior engineering roles at HomeGain, Express Scripts, and E*TRADE. He holds a BS in Computer Science from the University of Southern California.

Aaron Jistel

Founder & Broker

Aaron has been passionate about real estate since beginning his career as an agent in 2005. After earning his broker's license and building a successful boutique brokerage with ListingSpark co-founder Brett, he saw an opportunity to create a better way to sell homes. That vision led to ListingSpark — a technology-driven, consumer-focused approach designed to make selling real estate simpler and more efficient. Today, Aaron serves as Chief Real Estate Officer, bringing his deep industry experience to ListingSpark's sales strategy and growth.

Julie Daniels

COO

Julie joined ListingSpark in 2015 as its first employee and has played a key role in shaping and scaling the company ever since. As Chief Operating Officer, she leads Product and oversees Sales and Operations, working across the organization to strengthen processes, align teams, and drive growth. With a background in the homebuilding and mortgage industries, Julie brings a strategic mindset, strong operational expertise, and a passion for developing people and building high-performing teams.

David Solin

CFO

David is an experienced entrepreneur, investor, and technology leader who brings decades of business and technical expertise to ListingSpark. Throughout his career, he has founded and grown technology companies, led enterprise product development, and helped build innovative solutions in cybersecurity and software. His experience spans both startups and large organizations, giving him a unique perspective on strategy, growth, and building sustainable businesses. As CFO of ListingSpark, David brings that experience to the company's financial strategy and long-term growth. He is a graduate of Yale University with a degree in Mathematics.

Brian Matthews

Chief Architect

Brian's passion for technology began early, when he started programming in eighth grade and went on to work for a boutique software company throughout high school. After college, he joined Motorola before helping build three startups, including one that was acquired by Cisco, where he later worked as an architect and security expert. As Chief Architect at ListingSpark, Brian brings decades of technical experience to building and evolving the technology behind the platform, helping modernize an industry that has traditionally been slow to change. His work helps make selling a home simpler, smarter, and more transparent. Brian has degrees in Computer Science and Mathematics from the University of Washington in Seattle.

Tyler Norman

Director of Operations

Tyler joined ListingSpark in 2018 as a part-time Customer Success Assistant and has grown alongside the company into his role as Director of Operations. Today, he leads the Customer Success team and helps ensure both client and team needs are met every day. His deep product knowledge also makes him a valuable resource for product development, onboarding, and cross-departmental training. Tyler is passionate about creating exceptional customer experiences and helping his team grow and succeed.

Leah Cardenas

Customer Success Lead

Leah joined ListingSpark in 2023 as an intern and quickly earned a position as a Customer Success Assistant. Her willingness to step into any role and support the team made an immediate impact. Soon after joining, Leah earned her real estate license to deepen her industry knowledge and better serve ListingSpark customers. Today, she plays an important role across the Customer Success and Sales teams, serving as a team lead while also supporting sales. Leah brings a team-first attitude, strong work ethic, and a genuine commitment to helping both customers and her teammates succeed.

Emily Nelson

Account Executive

Emily joined ListingSpark in 2025 and quickly established herself as a standout member of the sales team. As an Account Executive, she has a natural ability to connect with people, understand their needs, and build genuine relationships with customers. Her approachable personality, strong communication skills, and drive to succeed have helped her become a trusted resource for clients and an important part of the ListingSpark team. Emily brings energy and determination to everything she does and is passionate about helping customers find a better, smarter way to sell their homes.

Cathy Lerch

Account Executive

Cathy brings nine years of sales experience to ListingSpark, along with a genuine passion for building relationships and helping others. As an amputee, resilience and perseverance have played an important role in shaping both her personal and professional journey. She has also had the honor of serving on the Board of Directors for Bethany Hamilton's nonprofit organization. Cathy brings that same determination, positivity, and people-first approach to the ListingSpark sales team. Outside of work, she enjoys spending time with her family and friends.