About Us

About Us

Transtar’s companies have provided investment, brokerage, and property management services to real estate investors and commercial tenants in Orange County and Southern California for over thirty years. Our companies offer a wide range of services and asset classes, with a focus on Orange County commerical brokerage, out-of-state self-storage investments, industrial brokerage and investment, and mobile home park investments. These asset classes offer great potential for growth and profitability, and our team’s deep understanding of them enables us to provide clients with the expertise and guidance they need to make informed investment decisions.

Our team has extensive experience working with various asset classes, including retail, office, and multifamily, among others. However, we specialize in self-storage, industrial, and mobile home parks due to their potential for high returns, steady growth, and relatively low-risk investment nature. We have worked with numerous properties in these asset classes, giving us a deep understanding of the unique challenges and opportunities that come with them.

We work closely with each client to understand their unique needs and investment goals. We believe that self-storage, industrial, and mobile home parks are an excellent fit for clients looking for stable, long-term investments that provide a consistent stream of income. Our team provides clients with the guidance they need to make informed investment decisions and to manage their properties effectively for maximum returns.


We pride ourselves on being transparent in all business areas. As fiduciaries to our investors, we take this seriously and provide quarterly updates on each of our assets.

Proven Results

Whether turning around a space or creating long-term wealth through our investments, we strive to produce great results for our owners and clients.

Trust is Key

Since Transtar's beginning, we've fostered lasting client relationships with both individuals and national pension fund advisors. Understanding the need for collaboration, we've devoted ourselves to cultivating strong connections with preferred clients, partners, vendors, and colleagues who collaborate with us at Transtar.

Meet the Leadership team

Richard Miller

President and Broker
DRE# 00553632

Robbie McKnight

Robbie McKnight

Managing Director

Sarah Crain

Chief Financial Officer

Ashley Spongberg

Ashley Spongberg

Senior Asset Manager

Gretchen Miller

Senior Partner and Salesperson
DRE# 01071427


Ross Lewis

Regional Director of Texas Industrial Assets and Salesperson
DRE# 02133033

Allan Orue

Allan Orue

Regional Director of Southern California Industrial Assets and Salesperson
DRE# 01888412

Jennifer Cross

Regional Director of Mobile Home Parks

Megan Callahan

Megan Callahan

Corporate Office Manager