M&A wrap: Audax, Vista, Robert F. Smith, Sumeru, Stifel, Piper Jaffray, Stifel, SoFi, Clearlake, M&A Mid-Market Awards

Audax, Vista, Sumeru, Stifel and Piper Jaffray win M&A Mid-Market Awards. SoFi buys payments firm Galileo. Clearlake and Levine Leichtman make deals.