Best Corporate Events & TeamBuilding is rated 4.9 out of 5 in the category business to business service. Read and write reviews about Best Corporate Events & TeamBuilding. BEST was created by the merger of top U.S. companies in the fields of corporate events, professional development training, team building, interactive entertainment, and event technology. The seasoned corporate event professionals running those companies pooled their skill sets to launch a fantastic line of original programming for the corporate world.