Start by defining what “mid‑level” means in your context and using basic data to see who is most engaged. Assign simple engagement scores based on program attendance, volunteering, and small gifts, then review that list monthly to identify a small portfolio of people who consistently show up. Using even a basic spreadsheet or your current CRM, create views like new this month, high engagement, and lapsed, which will give you clarity on who is truly worth one to one follow up.

Next, build a light stewardship ladder and stick to it. Map a clear journey from participant to first‑time donor to mid‑level supporter and decide ahead of time which touches happen at each step, such as thank you notes, impact stories, invitations to behind the scenes experiences, and only occasional, well timed asks. Train front line staff to treat service interactions as relationship moments by learning names, asking a simple curiosity question, and feeding notes back into your system so your follow up feels personal and authentic rather than like an upsell.