The last time PeopleMatter shut down King Street was in October 2011 when the human resources software company announced a plan to move its headquarters from North Charleston into a historic building downtown.

A year and a half later, 466 King Street has been transformed from the shell of a former clothier into a fancy, high-tech workspace, and on Thursday evening, PeopleMatter will again close down a block of Charleston’s main thoroughfare to celebrate.

Upper King will be closed between Ann and Mary Streets between 4:30 p.m. and 9:30 p.m. for the invitation-only event, which will feature speeches by PeopleMatter CEO Nate DaPore, Mayor Joe Riley and Charleston Digital Corridor Director Ernest Andrade and tours of the new four-floor facility.

The event will cap a busy couple of months for the company, which now has some 150 employees, spread across offices in Atlanta, San Francisco and Tulsa.

The headquarters move happened in late February. A few days later, the company announced it had accepted another $19 million in venture capital, bringing its total funding to $47 million.

Two weeks later, while the new headquarters was still receiving its finishing touches, PeopleMatter announced it had acquired Atlanta-based hiring assessments company PeopleClues.

As its new building is already to capacity, DaPore has said PeopleMatter plans to expand its headquarters next door into the Charleston Beer Works space next year.

Reach Brendan Kearney at 937-5906 and follow him on Twitter at @kearney_brendan.