Gyimah (26) left Pirates in February to join Swedish giants Helsingborgs IF but has found the going tough in Scandanavia.
His agent Mike Makaab of ProSport International confirmed they are in negotiations with the Clever Boys.
“He is likely to sign with Wits. We are still in talks with them and there are finer details that we need to sort out,” Makaab explained.
Though they are the defending Absa Premiership champions, Wits have had it tough in the first half of this season. Gavin Hunt's team are languishing at the bottom of the table with a mere 11 points and have conceded the most number of goals (17) of all the teams in the league.
While he is renowned as a hard-tackling defender, Gyimah is also adept at the holding midfield position.
At Wits, should he sign, he will compete with the likes of Thulani Hlatshwayo and Buhle Mkhwanazi for a starting berth in the heart of defence.
Such has been the spate of injuries at Wits that Hunthas even had to use Phumlani Ntshangase as a makeshift central defender.
In their bid to turn their season around, Wits have already signed well-travelled striker Lehlohonolo Majoro from Cape Town City.
But they are not done yet, with an agent revealing that they have set their sights on Kaizer Chiefs target Christian Epoupa.
Mike Ngobeni of M-Sport-Management said the Cameroonian who used to play for Zimbabwe's Dynamos is en-route to Johannesburg for an assessment .
“He will arrive in South Africa tomorrow. He is going to be assessed by Wits.”
Wits are also set to part ways with Montenegrin Slavko Damjanovic who has struggled to adapt in South Africa.