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Our Team Of Business Brokers

Vanguard Resource Group is a team of professional business brokers in San Diego, California. We have some of the best-qualified business brokers in the industry to help you navigate the process of buying or selling a business.

Our team has earned the California Certified Business Broker (CBB) and the Certified Business Intermediary (CBI) designations, So you know we have the skills and knowledge to handle any business transaction, no matter how complex. We are focused on the San Diego California business mergers and acquisitions market, so we have an intimate understanding of the local market conditions. As a result, you can be confident that you are getting the best possible service when you work with us.

So, if you are looking for a local team of professional business brokers who can get the job done right, then look no further than Vanguard Resource Group.

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Kenneth A. Oppeltz, CBB, CBI, M&AMI

Managing Principal

Ken is the founder of Vanguard Resource Group and has participated in over 800 successful transactions. Ken is an active member of the International Business Brokers Association (IBBA), the California Association of Business Brokers (CABB) and he is a Life Member of The Institute of Business Appraisers (IBA).

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Don DiSpaltro

Managing Principal

Don has personally sold hundreds of companies, has been a consistent top producer and the recipient of national awards including the #3 producer worldwide in 2006. But, most importantly, Vanguard Resource Group’s client satisfaction surveys rate Don at the highest levels attainable. Don is a dedicated professional committed to guiding his clients through the complex and demanding tasks associated with business transfers.

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Senior Associate

Griffin Davidson is a business broker with a background in Economics from the University of Colorado Boulder. Coming from an entrepreneurial family, he was inspired by his grandfather’s successful sale of his optometrist business in San Diego, to help others successfully exit their business. His personal background, along with professional experience in technology project management, combines for an excellent skill set for business sales and valuations.

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William K. Lange, CBB, CBI, M&AMI

Managing Principal, 2000-2019

Bill’s career spans more than 30 years, and includes senior management positions in private and public companies and business ownership. Prior to becoming a business intermediary, Bill spent a decade as the chief marketing and business development officer for San Diego-based Mail Boxes Etc., now The UPS Stores. At MBE, he played a key role in making the company the fastest growing franchise in history, assisting the company in its growth to more than 4,000 units worldwide.

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