Data center campus · 9 Griffin Road North, Windsor, Hartford County, Connecticut

Cigna Windsor Data Center

Operating as of Oct. 25, 2026

Cigna's own Windsor data center, built in 1982 at about 153,000 sq ft, which received a $386 million renovation backed by Connecticut's data center sales-tax break. Also known as: 9 Griffin Road North.

Cite← Connecticut data centers
Fairfield CountyHartford CountyLitchfield CountyMiddlesex CountyNew Haven CountyNew London CountyTolland CountyWindham CountyCigna Windsor Data Center · Operating
PowerNot statedNot reported in the records found
Floor area153,462sq ft

Who is behind it

ProjectCigna Windsor Data CenterAlso: 9 Griffin Road North
Developer and teamCigna
End userCigna

The record, newest first

  1. CT Mirror described the Cigna project as a renovation of an existing Windsor data center and the only project to use the 2021 sales and use tax exemption. (CT Mirror, Oct. 25, 2026)

  2. CT Mirror reported, based on DECD's annual report, that Cigna is the only company to have used the state's data center sales-tax rebate, saving an estimated $17 million on a projected $386 million in Windsor upgrades through mid-2025. (CT Mirror, Sept. 3, 2026)

  3. Windsor Town Council unanimously approved a tax agreement with Cigna for a planned $386 million upgrade of its Windsor data center. (Becker's Payer Issues, June 27, 2022)

Conflicts and open questions

  • No MW figure was found. The original Hartford Business Journal story was not available, so the Becker's Payer Issues summary of it is cited.

The full record

Status note
An existing enterprise data center (built 1982) that Cigna renovated under the state's data center sales-tax incentive.
Evidence
News reports; primary records not yet obtained
Size class
Under 50 MW (outside main scope; kept for completeness)
Map position approximate, from the reported address or area. Updated Oct. 17, 2026.