What to write on cards for business clients?

The best client cards feel personal, not corporate. Keep the message short, specific, and genuinely warm so it reads like a note from a person rather than a form letter.

• Open with real thanks tied to a concrete detail, like a recent order, a meeting, or a milestone you shared.
• Skip filler phrases such as "valued customer" that instantly signal a mass mailing.
• Reference the relationship or a shared win, not just the transaction.
• Close with a warm, human sign-off and your own name.
• Let the physical card do some of the work: a heavy stock and a handwritten-style script make the note feel like a keepsake.