One General Agency (OGA) is a Managing General Agency and Surplus Lines Broker that has been serving the specialty needs of independent insurance agents since 1951. OGA is a local, family-owned and operated company centered on strong relationships and trust. The key to our success is our people and our relationships, a principle established by the company’s founder, Marie Welch, in 1951. President & CEO, Jennifer Dotter, took over the company in 2008. Jennifer is proud of the company’s history and committed to an even brighter future. OGA was recognized as one of Oklahoma’s Top Workplaces by The Oklahoman in 2014 and 2015 and was named Brokerage Company of the Year in 2015 by the Independent Insurance Agents of Oklahoma.
OGA provides markets for commercial transportation, property and liability, garage, oil & gas, personal lines, professional lines and workers’ compensation to our agency partners through top-rated admitted and non-admitted insurance carriers.

OGA is dedicated to helping our partners succeed. We operate with a mentality of continuous innovation, education, and growth in order to offer support and stability in a rapidly changing marketplace. Service to you, the customer, remains the sole reason for OGA’s existence and the focus of our commitment.

We were also name Best Place to Work in 2020 by Business Insurance Magazine, and BIGiOK’s Brokerage of the Year in 2022.


It was a scorching summer day in Oklahoma City in 1951. The year had brought a new middleweight boxing champion with Sugar Ray Robinson defeating Jake LaMotta and President Harry Truman had shocked the nation by dismissing highly popular military leader General Douglas MacArthur. On the lighter side, the hilarious new series “I Love Lucy” had viewers glued to their new-found television sets. It was a year of changing times.

Changes were also taking place in a small building at 10th and Walker in Oklahoma City nestled next to the now famous Kaiser Ice Cream store, as a unique family business was beginning. It was a business that would grow and flourish, weather the state’s difficult financial times, and reflect the pioneer spirit for which Oklahoma has become known.

A young entrepreneur, Marie Welch, literally began OGA on her kitchen table. Marie felt that rural insurance agents were neglected by larger insurance companies and, as a result, had fewer products to offer clients. Seeing great opportunity in fulfilling this unmet need, she set out to provide previously unavailable products to independent agents. The concept worked.

OGA grew and Marie became known as an innovator and leader in the insurance industry. In the early 1970s, after moving to larger quarters at 36th and Shartel, she became an authority on automation utilizing an IBM mainframe 36 computer to expedite the endless flow of paperwork that was now beginning to arrive. Insurance executives were drawn from across the country to see how this small Oklahoma City agency had achieved such incredible operational speed through the little known world of computers. True to her character, Marie happily offered her proprietary software to any who asked, free of charge.

Marie continued to build her reputation as an industry expert. She spoke on America’s general agency system before the prestigious Lloyd’s of London and was the only woman to ever do so. Marie achieved nationwide notoriety in 1983 when she was awarded the distinction of the only female president of the American Association of Managing General Agents (AAMGA).

The agency rode the Oklahoma economic roller coaster of the 80s and in 1988 Baron Garcia negotiated a purchase of the company. Baron was one of the agency’s brightest young officers. He stepped in and operated OGA as a family business just as Marie had. Baron was committed to the company’s legacy of service and innovation. Combining the company’s strong foundation with an aggressive marketing approach and a comprehensive acquisition program, he led the agency to over $25 million in sales and attracted numerous insurance companies to the state.

Now in the second half-century of operation, under second-generation family management, OGA’s commitment to service is just as alive as it was over sixty years ago.

Our Mission

One General Agency (OGA) is a Managing General Agency (MGA) and Surplus Lines Broker committed to building stronger relationships with our business partners and valued employees. Our commitment to success and future growth is focused on exceeding customer expectations through excellence in performance, service, education, and professionalism.


“We are passionate about finding smart and competitive solutions for each client’s needs. Our independence allows us to capture new opportunities, and to do business in a way that fits the preferences of our partner agents and carriers.”


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