Dave Cormack hopes he can help to secure fresh investment from the United States to help the Dons achieve more success both domestically and in Europe.
The businessman, who sold his software company Brightree for £567million in February last year, has joined the Pittodrie board after investing a seven-figure sum in the club.
It is another major financial boost for the Dons following last week’s announcement that Saltire Energy had renewed its agreement as the club’s main sponsor for the next two years.
Atlanta-based Cormack said: “I am also going to be looking at investment from the United States coming in. There are a lot of people in the States who love to be involved in sports teams.
“It is about exploring those opportunities. There is an opportunity to explore partnerships and investment opportunities in the States.
“I need to go out and have some conversations and see where that takes us.”
Cormack, a lifelong Dons supporter, will be confirmed as a new director this morning.
He led the club as interim chief executive while on sabbatical from the United States in 2000 until 2001 and is delighted to be back involved with the club.
He said: “I have always been a friend of the club over the years.
“Since George Yule (the club’s vice-chairman) got on board we have spent a lot of time chatting about initiatives.
“This has been the culmination of about 18 months of discussions. We have taken our time with it.
“Now that I have transitioned the business and got the family foundation and the charitable side in place I am able to devote some time to this passion.”
Cormack is a board director of WebPT and invests in software companies alongside Boston-based Battery Ventures.
The 58-year-old said: “We are based in the United States.
“I have three children who are 33, 30 and 28 and four grandchildren all based in the States.
“Rather than being a full-time CEO of one company, which I have been for a long time, I am going to be sitting on a couple of boards of software companies as well as the Aberdeen board.
“I am coming on board as a non-executive director as opposed to being involved in the business day by day.
“The beauty of that is I can attend board meetings and be anywhere I want to be at any time as long as I have my laptop and Skype.
“It is a really nice position for my wife, Fiona, who is also from Aberdeen, and myself to be in.
“We intend to spend a couple of months a year on and off in Aberdeen, maybe 10 days at a time.
“I am now in a place where I can offer both financial support and my time to the club.
“I’m looking forward to trying to help Aberdeen maximise its potential.”