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Philadelphia: 35 sites, 22 operators, 850 MW under construction

Philadelphia, United States has 35 data centres, 31 operational, spanning 12 sub-markets, 22 operators, 335 MW live (40% modelled), 850 MW under construction. Largest by total potential: 1547 Critical Systems Realty (1 site), then Nebius.

Map of 33 data centres in Philadelphia

Every Philadelphia site DC Atlas tracks with a position on record, coloured by status.

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Live

335MW

40% modelled

Under construction

850MW

Planned

2MW

Total potential

1,187MW

53% of pipeline modelled

Who supplies the power

89% of the data centres we track in the Philadelphia market have a named power supplier

  • PECO14sites
  • PPL Electric Utilities5sites
  • Delmarva Power5sites
  • FirstEnergy2sites
  • Atlantic City Electric1site
  • PSE&G1site

3 further suppliers serve smaller numbers of sites here.

Who is building in Philadelphia

The 10 largest operators here by total potential, of 22 tracked in this market.

OperatorSitesLiveTotal potential
1547 Critical Systems Realty1450 MW
Nebius1300 MW
CoreWeave1100 MW
Metrobloks1100 MW100 MW
Netrality Data Centers280 MW80 MW
TierPoint325 MW25 MW
DaSTOR, LLC422 MW22 MW
Lumen420 MW20 MW
365 Data Centers220 MW20 MW
Colocation America214 MW14 MW

Only 16% of the live facilities here carry a commissioning date, which is too thin to chart as a build history.

Recent activity

9 recorded developments in the Philadelphia market, the latest on 21 Aug 2026.

  • 21 Aug 2026Zoning decision

    Norristown Municipal Council passes data center ordinance

    Norristown Municipal Council unanimously adopted a data center ordinance on August 21, 2026, establishing zoning regulations for data center facilities in the municipality's 41-acre heavy industrial district near SEPTA's Norristown Transportation Center and the Schuylkill River. The ordinance includes 14 categories of development requirements, addressing environmental concerns, utility infrastructure costs, backup power generation, air pollution, decommissioning plans, and plume studies. Council members David McMahon and Jasmine Griffen spearheaded the initiative to establish strict guidelines proactively, following data center proposal activity across the region and concerns about nuisance impacts. The measure updates the existing zoning code to define and regulate data center uses under conditional use provisions, ensuring compliance with Pennsylvania state law which requires municipalities to provide for legal land uses within their jurisdiction.

  • 20 Aug 2026Refused

    Plans for five data centers in King of Prussia, Pennsylvania blocked

    Plans for five data centers in King of Prussia, Pennsylvania have been blocked.

  • 18 Aug 2026Zoning decision

    Vineland planning board approves 300-MW data center site plan

    The Vineland, New Jersey planning board voted 8–1 on August 18 to approve a site plan for a 300-megawatt data center being developed by DataOne for the Nebius Group to support Microsoft's AI infrastructure. The approval enables construction of a liquefied natural gas storage tank and Bloom Energy fuel cells to generate the facility's power. Residents mounted sustained opposition over six hours of hearing, citing safety concerns about the LNG tank, carbon emissions of over 2 billion pounds annually, and water consumption of 8 million gallons yearly, but the board found the project compliant with local zoning and voted to approve it.

  • 13 Aug 2026Refused

    Allentown data center plans dropped after officials deny application

    Plans for a 2.6 million sq ft data center outside Allentown, Pennsylvania were dropped after local officials denied the application.

  • 7 Aug 2026Zoning decision

    Allentown City Council tightens data center zoning ordinance after public backlash

    Allentown City Council voted unanimously on Wednesday, August 7, 2026 to amend its June 2026 data center zoning ordinance with stricter requirements. The amendments reduce permitted industrial zones for data centers from two to one, increase setbacks from homes, schools and daycares from 200 feet to 500 feet, require stricter noise studies, mandate decommissioning plans, and require developers to hold public informational meetings before formal approval. The changes came after residents and anti-data center activists argued the original ordinance did not adequately protect communities from facility impacts including noise, energy costs and water pollution.

  • 31 Jul 2026Litigation

    Amazon and Duke Energy accused of Clean Air Act violations at Hamlet, North Carolina data center

    Amazon and Duke Energy have been accused of evading the Clean Air Act in connection with an under-development data center in Hamlet, North Carolina.

  • 29 Jul 2026Refused

    King of Prussia planners vote down data center proposals

    Planners in King of Prussia voted against data center proposals in the area.

  • 6 May 2014Financing$179.5M

    Starwood Property Trust Originates $179.5M Data Center Financing in Philadelphia

    Starwood Property Trust originated a $179.5 million first mortgage and mezzanine loan to finance the acquisition of a premier data center facility in Philadelphia, Pennsylvania. The financing represents a significant capital deployment in the data center sector by the commercial real estate finance company. The deal demonstrates continued investment activity in strategically located data center assets on the East Coast.

All recent activity

Who is hiring in Philadelphia

3 open data centre roles at 2 operators we track

Two operators are recruiting in Philadelphia, 3 roles between them: Nebius with 2 and T5 Data Centers with 1. None of them are build-side: this is a market staffing what is already standing, critical facilities accounting for 3 of the 3.

The mix

  • critical facilities3

Most recently opened

  • Nebiuscritical facilities26 Jan 2026
  • Nebiuscritical facilities26 Jan 2026
  • T5 Data Centerscritical facilities21 Jan 2026

Counted from the operators' own public careers feeds, read daily. A role counts here when the employer runs a data centre we track and the work is operational rather than back office. What these roles involve, and what they pay.

Questions about Philadelphia

How many data centres are in Philadelphia?
Philadelphia, United States has 35 data centres, 31 operational, spanning 12 sub-markets, 22 operators, 335 MW live (40% modelled), 850 MW under construction. Largest by total potential: 1547 Critical Systems Realty (1 site), then Nebius.
How much data centre capacity does Philadelphia have?
DC Atlas tracks 35 data centres in the Philadelphia data centre market. 335 MW is live, 850 MW is under construction, 2 MW is planned, for 1,187 MW of total potential at full buildout.
Who are the largest data centre operators in Philadelphia?
22 operators run facilities in the Philadelphia data centre market. 1547 Critical Systems Realty is the largest by total potential, with 1 site and 450 MW.
Which utilities supply power to data centres in Philadelphia?
PECO, PPL Electric Utilities and Delmarva Power serve the most data centre sites in the Philadelphia data centre market. DC Atlas holds a named power supplier for 89% of the facilities it tracks here.

Every data centre we track in Philadelphia

31 of 35 with a published page

DaSTOR, LLC3

365 Data Centers2

Cogent2

Colocation America2

Data Canopy2

Lumen Technologies2

Netrality Data Centers2

11:11 Systems1

CoreWeave1

Direct LTx1

Equinix1

Fifteenfortyseven critical systems realty1

Flexential1

H5 Data Centers1

Hivelocity1

Hivelocity LLC1

Keystone Nap1

Lumen1

Metrobloks1

Nebius1

Tierpoint1

TierPoint1

Windstream1