Gray was previously commercial director at the venue in Shropshire and will assume responsibility for the entire site, including its conference and exhibition facilities plus two neighbouring hotels.
Gray said: "This is an incredibly exciting time for TIC as we are about to begin the next part of our masterplan, which is a further £12m investment to create another event hall."
As part of an extended management restructure at TIC, sales and marketing director Matthew Lambert has also been promoted to commercial director.
Ormrod, who leaves TIC after seven years, will take up the role of group operations director at the NEC later this month, ensuring the delivery of operational efficiency and service standards across the group. He previously worked at the Birmingham venue in the 1990's as part of its exhibition planning department and ICC's conference sales division.
The NEC has also poached Earls Court and Olympia's director of corporate affairs and planning, Debbie Thomas, as its new marketing and public affairs director. She follows NEC Group chief executive Andrew Morris, who joined the venue from ECO last October.
"I am delighted to be welcoming two such high-calibre appointments," said Morris. "They will each bring considerable experience and enthusiasm to the business as they join me in the senior team that will take the NEC Group forward into the future."
- TIC's in-house production team is now available for hire. TIC Stagecraft is extending its services to supply staging and lighting equipment and production management to events at alternative venues.
The team has already worked on events at Woodstock, Weston Park in Shropshire and the NEC.