Vanguard Resource Group, the leader in private business sales in San Diego, is staffed with some of the industry's best-qualified and most experienced business brokers. Our professionals have all earned or are candidates for the Certified Business Intermediary (CBI) designation from the prestigious International Business Brokers Association (IBBA). Our principals have also earned the prestigious Merger & Acquisition Master Intermediary (M&AMI) designation from the M&A Source, an IBBA affiliate.