Real Estate Brokerage

Trevor Tune

Licensed Realtor

Trevor is a business strategist and real estate investor.  In addition to working as a licensed real estate agent, he is the founder of an independent consultancy focused on advising early and growth-stage startups.  Trevor previously worked in a full-time capacity as the Director of Operations at Capital Innovators, a St. Louis-based accelerator program.

What’s in Your Radius?

Trevor currently resides in St. Louis and has been a Contributor at the St. Louis Business Journal and EQSTL where he has written articles about the innovation community’s impact on the local economy.

Chris Long


Chris founded Radius out of a desire to unite his successful software and technology career with his passion for real estate. Since 2009, he’s helped clients throughout St. Louis significantly reduce overhead and increase profits, leveraging cutting-edge technology to find solutions to property management issues.

Karen Campbell

Licensed Realtor

Karen Campbell is a licensed real estate agent with Radius Realty. She’s passionate, driven, and works with investors, sellers, and a variety of buyers.

What’s in Your Radius?

“With more than 6 years of Real Estate knowledge and dedicated experience I take pride in my integrity and strict ethical standards. I provide my clients with the most precise and up to date feedback on the state of the market, its trends, comparable sales and property values giving them a realistic outlook on what they can expect to achieve in the current market.

I understand that when selling properties having broad exposure is essential and with my wide sphere of influence and love for networking, myself and my company have a dominate presence in the area. Time is of the essence so when working with sellers the listing is placed in the MLS within 24 hours of an agreed upon time on the listing agreement. In addition to the MLS, our company sends the listing information for immediate placement on the most popular home search sites in the country. I also utilize many other platforms for marketing including social media.

I love working with buyers as well. I understand that buying a home may be one of the biggest purchases ever made and is ultimately life changing. I enjoy walking my buyers through the process and negotiating on their behalf to ensure they get the best value. My main goal when working with buyers is educating them on the process so that they understand step by step what to expect.

Communication is key. My clients hear from me weekly to update them on any activities concerning their purchase or sale. I am a full time Realtor and am always available to answer any questions or concerns my clients might have. I absolutely love what I do and look forward to serving you!”

Connect with Karen on her FaceBook Page