Phelps Digital provides vendor management and digital strategy services. The company offers managed services that oversee digital advertising campaigns across providers, digital audits that review campaign performance and identify gaps, and Retainmint, a solution for digital marketing agencies. Retainmint provides technical and strategic reviews of client advertising accounts on platforms including Google Ads, Facebook Ads, Microsoft Ads, and programmatic platforms. Technical reviews audit for setup issues and missed opportunities. Strategic reviews assess performance and recommend budget allocation and new campaign types. The company manages approximately $50 million in annual advertising spend.