Midfielder Tom Adeyemi, from Attleborough. made 16 appearances for the Norwich City Academy Under-18s during 2007/8. He joined Norwich City's academy as a full-time scholar in the summer of 2008 having been with the club since the age of 8. Tom scored in Norwich's 3-1 Under-18s friendly victory against Celtic on 23rd March 2007

On 13th November 2008, Tom signed his first professional contract with the Canaries, which will last untilthe summer of 2011. He said "“It feels really good to sign my contract because I've been with Norwich a long time so this has been my ambition for a long time. “When you're really young you don't think it can happen but as I've got older I've realised I could do it, and now I'm really happy that I have. I owe a lot to all the coaches I've worked with and also my parents for guiding me through."

Glenn Roeder commented “It's excellent that we've signed Tom. He was only at school back in June but I've always been a great believer that once they show enough ability to turn professional after they turn 17 it's the right thing to do to get them signed and get them involved with the professionals. We're not getting ahead of ourselves, I'm not expecting Tom to be involved with the first team for a while yet - I've said to Tom that his aim come the end of the season would be to try and get on the bench before the season finishes and make his debut. If he doesn't, that won't be a problem either, he's a first year and he's very young. He's extremely talented and he has a lot of qualities which make up a modern professional footballer.”

Tom made his debut for Norwich in the 7-1 shock home defeat to Colchester on the opening day of the 2009/10 season. He finished the season with 17 appearances and was awarded the League One Apprentice of the Year award for 2009/10

On 14th July 2010, Tom was loaned to Bradford for six months to gain first team experience. Tom scored on his Bantams debut but they lost 3-1 to Shrewsbury on 7th August 2010. His loan was extended in January 2011 until the end of the season- he had played 22 times for the Bantams in the first six month period. He finished the season with 37 appearances for Bradford, scoring five goals.

Tom joined Oldham on loan on 31st August 2011 until 3rd January 2012. This was extended until the end of the month. On 6th January 2012, Tom played for Oldham against Liverpool, at Anfield, in the third round of the FA Cup. During the game, it was alleged by Tom that racist abuse was directed at him from Liverpool fans, leaving him distraught. A 20 year old man was arrested on 8th January 2012 on suspicion of a racially aggravated public order offence. He was later released on bail. Liverpool also issued an official apology to Adeyemi and, in a statement on their website, Oldham thanked both parties for their continued communication and support throughout the investigation to date. This incident occured only days after Liverpool's Luis Suarez was banned for eight games for racially abusing Manchester United's Patrice Evra.

Tom's loan at Oldham was extended until 10th March 2012, and then until 9th April 2012. He returned to Norwich having made 45 appearances for Oldham

Tom was loaned by Norwich to Brentford on 29th August 2012 until 28th January 3012. Brentford manager Uwe Rosler said "Tom is a dynamic midfielder who adds to us very good ability. He is good on the ball, powerful and adds height and an enormous amount of work ethic." This was extended to the end of the season and Tom played in the League One play-off final defeat to Yeovil on 19th May 2013. he made 39 appearances for Brentford, scoring three goals.

The following day saw Norwich announce that Adeyemi was one of ten out-of-contract Norwich players who would not have their contracts renewed. He had played 17 games for the Canaries.

On 24th June 2013, following his release from Norwich City, Adeyemi signed for Championship side Birmingham City, signing a 2 year deal. Commenting on the transfer, Birmingham boss Lee Clark said, "Tom is a terrific young lad who is a powerful and athletic midfield player who can get forward and score goals."

On 2nd July 2014, Sky Sports reported that Adeyemi had been the subject of a bid from Cardiff City. After weeks of speculation, Adeyemi was sold to Cardiff for an undisclosed fee, believed to be £1m, on 7th August 2014. Adeyemi is a direct replacement for Jordan Mutch, who has completed his £6m transfer to QPR.

"I'm delighted he has signed. He will give us physical presence," said Cardiff manager Ole Gunnar Solskjaer. "He will add a dimension to our team. That physical presence in midfield - I was looking for it ""We have done a good bit of business definitely. He has only one year left of his contract at Birmingham. So it was just the right time for us."

Solskjaer admitted he had been tracking Adeyemi for the past five years since seeing him playing for Norwich City reserves against Manchester United reserves as an 18-year-old. "Since then he is one I have kept a little eye on," added Solskjaer. "Tom has a physical presence, drive and energy - up and down the pitch. He can dictate games and is great at winning and anticipating second balls. We've been interested all summer and I'm thrilled we've got our man ahead of the season kick-off.

On 14th July 2015, Tom joined Leeds on a season long loan. He made 23 appearances, scoring twice,

He returned to Yorkshire on 18th August 2016, joining Rotherham on a season long loan. He scored seven goals in 30 games.

He was released by Cardiff at the end of the 2016/17 season and was linked with moves to Norwich and Ipswich. The latter became a reality on 30th June 2017 with Adeyemi signing a two year contract with the Tractorboys. He said “I have known about the interest from Ipswich for a while but it picked up over the last few days and having spoken to the manager, it was an easy decision to come here. I didn’t need to speak to anyone else. I know what a great club Ipswich is. I know about the history. The manager told me about his plans and how I fitted in and I have always admired him from afar as well. They were all key reasons why I wanted to come here but Ipswich showed the most interest in me as well and that was important. I wanted to join a club that I felt really wanted me and I felt that about it here. I know the club have signed a few players lately so there is a bit of a re-building going on and I’m delighted to be part of that.”

Adeyemi and Ipswich were relegated to League One on 13th April 2019 following a 1-1 draw with Birmingham. This puts Ipswich in the third tier for the first time since 1957. Adeyemi didn't play in any games that season due to injury.

Adeyemi was one of ten players released by Ipswich on 20th May 2019 including  goalkeeper Dean Gerken, defenders Jordan Spence, Jordan Collins and Jonas Knudsen and midfielders Grant Ward and Simon Dawkins. He then retured. His career post-football has seen him work in strategic consulting and is now studying towards an MBA at the Harvard Business School.

In October 2023 he was elected to the Players Board of the Professional Footballers Association, He will be one of three ex-professionals to sit on the board of 13 representatives alongside two members from each of the five divisions, the Premier League, Women’s Super League, Championship, League One and League Two. Ex-Coventry winger Peter Vincetti and retired Doncaster man Simon Gillett have also been appointed. Tom held roles within the PFA during his playing days - serving as a playing delegate.