[a peer company] and [shared problem]
to {{first_name}} · Managing Director at {{company}}
Hi {{first_name}},
[A peer company] is a lot like {{company}}: similar size, similar clients, and the same headache with [shared problem].
They started working with [your company] last year and [specific result]. The change that made the difference was smaller than they expected: [what changed].
I can send over the short write-up if you'd like to see exactly how they did it.
Worth sending?
Alex
P.S. If [shared problem] isn't an issue for you, reply 'no' and I won't follow up.