Case Study: MiMutual Mortgage amplifies social presence and boosts referrals with Sprout Social (Bambu)

MiMutual Mortgage amplifies its social presence through employee advocacy using Bambu by Sprout Social

MiMutual Mortgage, a privately held retail and wholesale mortgage bank in Port Huron, Mich., found that traditional advertising couldn’t build the one‑on‑one trust its loan officers need to win clients. The company faced three core challenges—scaling social communications across 250+ employees, varying levels of social media comfort and training, and strict regulatory compliance—so it needed a way to empower staff to share helpful, approved content that would spark personal conversations and referrals.

Using Bambu by Sprout Social as a centralized, compliance‑vetted employee advocacy platform, MiMutual combined easy access to tailored content with ongoing training and internal promotion. The program generated 150k impressions from 178 pieces of content and 319 shares, produced direct business (one officer closed three loans from new social relationships) and local leads (a Kansas City video drew multiple Realtor inquiries), helping the company deepen employee-driven relationships and strengthen trust with prospects.

MiMutual Mortgage

Eric Smith

Retail Marketing Manager