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Our team of friendly, highly skilled Realtors is your trusted partner for real estate services in Greater St Louis.  Our services include residential, commercial and property management.


All facets of our real estate practice are approached with a caring, service-focused orientation. We believe that our role is to help people move from one point in their life to another. We see the sale or rental of a home, the purchase of one to live in or as an investment, not simply as a transaction, but rather the result of a change in someone's life. This is central to our ethos.

We are dedicated, caring and knowledgeable professionals. We know how to get you to where you need to be; and if that means selling your home, buying a new one or creating an investment portfolio, we will represent you with honesty, integrity and a firm commitment to your objective.

Vennessa Mastroianni is our Principal Broker and proudly serves as a Board Director for the Missouri Association of Realtors, the Council of Independent Real Estate Brokers (President) and the Manchester Business Association.  She has also been honored to have been selected as a 2018, 2019, 2020 & 2021 Five Star Professional Real Estate Agent as seen in St Louis Magazine.

As an office, we are dedicated to professionalism at every level. We provide a culture that is collaborative and supportive, and where honesty and integrity are the hallmarks to our brand.  When it comes time for you to buy, sell, rent or invest in real estate in St Louis, we are committed to representing you and your interests in a way that creates that truly meaningful experience.  Our office goal is to WOW you!

Licensed in Missouri:  2012009452

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What Our Members Say About Us

"The West St. Louis County Chamber of Commerce truly lives up to the community model of business. We share a belief that we are all in this together to build up our community and help businesses flourish so they can provide great jobs...The opportunities to get involved are endless. At the West County Chamber, members like each other. Come join us!"

Bruce Sheridan, Organizational Compass Inc.

"The West St. Louis County Chamber of Commerce is a great place to meet others! The goal of the Chamber is to help members promote their business and contribute to the community in a fun and friendly atmosphere!"

John Hoover, U.S. Bank Home Mortgage

"This is a great Chamber for making business connections and getting involved with the local communities. I have met many friends through my involvement with the West County Chamber of Commerce."

Robin Monks, Cetera Investors

"Joining the Chamber has helped advanced our business during good times and bad. Glad we made the commitment to join over ten years ago. There is no better place to develop your business than the West St. Louis County Chamber of Commerce!!!"

Sandy Chestnas, Owner SERVPRO of Fenton/South Ballwin

"The West County Chamber of Commerce continually provides the Parkway School District with business and community connections that ultimately benefit our students and educators. They willingly share information about the school district with the larger community. Information from the West St. Louis Chamber assists Parkway in our future planning. We very much appreciate our partnership."

Keith Marty, Superintendent Parkway School District

"This is the most amazing chamber I have ever seen! Lori Kelling and Heather Zerweck are the dynamic duo 🙂 They bring so much energy and a truly amazing culture to the West County Chamber of Commerce. The connections I created have made such a positive impact on my business!!"

Jay Grosman, Owner/Founder iAutoAgent

"The West St. Louis County Chamber of Commerce has helped me grow my business for the past four years. Through their various networking meetings and events I've made business connections and friendships I otherwise wouldn't have. Their website and Facebook page are also a great resources for keeping up with local information and events."

Courtney Ruder, Ruder Realty