As niche as it might seem I've actually voiced quite a few corporate anniversary videos to date; whether it's celebrating a companies 'birthday' or the number of years a successful product has been on the market.
I get booked for a lot of corporate and B2B promotional material like this. Warm, prideful but not boastful ;-) and authoritative tones come easily to me and really help to show off a company in an inviting way. In my experience this style of voice over works as well on Explainer Videos as it does on Corporate Promotions and Internal Business Videos.
Like what you hear? Think my voice might work for you project? Send a sample of the script across and I'll get it recorded so you can hear my voice with your words!