First contact, observation angle
When you have spotted something verifiable about the company.
Objet : [Company] and [subject in two words]
Hello [first name],
I saw that [verifiable observation: you're hiring two salespeople / you've just opened in Leeds].
With [trade] of your size, that moment usually brings up [specific problem].
We work with [comparable type of client], who were at the same point a year ago.
Would fifteen minutes next week make sense? Tuesday or Thursday morning, your choice.
[First name last name] — [company] — [phone]