Bywatts

Solar Companies in Illinois

Bywatts lists 112 solar companies in Illinois.

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View Illinois on the map

Top cities: Chicago (68) · Schaumburg (4) · Niles (4) · Lombard (4) · Champaign (4) · Springfield (3)

Companies by category
Illinois solar companies by categoryDesign & Engineering63Generation Systems59Manufacturers50Installers & Field Serv…Installers & Field Services49EPC Firms (Engineering,…EPC Firms (Engineering, Procurement, Construction)48Energy Consultants44Operations & Maintenance38Training & Certificatio…Training & Certification Providers35

How much hail and wind Illinois solar sees

If your company owns or insures solar in Illinois, earthquake is the weather peril most likely to damage the panels, and Douglas County carries the highest exposure of the 102 rated counties.

See how much hail your panels can take across Illinois counties

Source: FEMA National Risk Index, modeled by Bywatts. Full county ranking and methodology at the link.

All 112 companies in Illinois

CompanyCityWebsite
PanduitTinley ParkVisit site
93EnergyEvanstonVisit site
First AmericaMorrisVisit site
Rhino Tool CompanyKewaneeVisit site
Strategic Economic Research , LLCNormalVisit site
A-Rent Test EquipmentBurr RidgeVisit site
ARI INDUSTRIES, INC.AddisonVisit site
AtkoreHarveyVisit site
BSRIA Inc.ChicagoVisit site
GraybarJOLIETVisit site
Gripple USAAuroraVisit site
HARTING Technology GroupElginVisit site
KnobelsdorffOglesbyVisit site
Langan Engineering & Environmental Services·Visit site
MK BatteryNapervilleVisit site
SolescaChicagoVisit site
UL SolutionsNorthbrookVisit site
Yes EnergyChicagoVisit site
Advance Switchboard Distribution, LLCElk Grove VillageVisit site
Advanced Energy GroupChicagoVisit site
Aero Performance GroupChicagoVisit site
Aether FuelsChicagoVisit site
Agon Partners LLCEast St. LouisVisit site
Air ComfortBroadviewVisit site
Aldridge ElectricLibertyvilleVisit site
Amp AmericasChicagoVisit site
ARCO/MurrayDowners GroveVisit site
ARF SolarCottage HillsVisit site
Argonne National LaboratoryLemontVisit site
Baumann ConsultingChicagoVisit site
Brewster Companies, Inc.MaryvilleVisit site
Buoyant VenturesChicagoVisit site
ClaycoChicagoVisit site
Clean Power HourKansasVisit site
Clune Construction CompanyChicagoVisit site
ComEdNilesVisit site
Contegra Construction Co.EdwardsvilleVisit site
Continental Electrical Construction Co.Oak BrookVisit site
Cotter Consulting, Inc. (now Consertus)ChicagoVisit site
DB Invest EnergyDowners GroveVisit site
dbHMSChicagoVisit site
Detach Reset Solar·Visit site
DGS Technical Services Inc.ElginVisit site
Dynamic Controls Inc.East PeoriaVisit site
EarthicsChicagoVisit site
eFineryChicagoVisit site
Elara EngineeringChicagoVisit site
ElevateChicagoVisit site
Eligo Energy, LLCChicagoVisit site
EV-lution Charging LLCChicagoVisit site
Evergreen Climate InnovationsChicagoVisit site
ExelonChicagoVisit site
Genial InvestimentosChicagoVisit site
Grid StatusChicagoVisit site
HyzonBolingbrookVisit site
IDE TechnologiesCampusVisit site
Illinois Green AllianceChicagoVisit site
IXYS CorporationRosemontVisit site
JD PRO SolarFranklin ParkVisit site
Kolbi Pipe Marker Co.Arlington HeightsVisit site
La MarcheDes PlainesVisit site
LanzaJetChicagoVisit site
Legacy Solar + ElectricBloomingtonVisit site
LittelfuseRosemontVisit site
Mechanical Contractors Association of ChicagoBurr RidgeVisit site
MEPISChicagoVisit site
MEYER BORGMAN JOHNSONChicagoVisit site
mintropyChicagoVisit site
Mitsubishi Electric Automation, Inc.Vernon HillsVisit site
MNS Consulting IL·Visit site
Mondragon Assembly GroupRolling MeadowsVisit site
Mondragon Assembly MéxicoRolling MeadowsVisit site
Natrion Inc.ChampaignVisit site
Navigate PowerChicagoVisit site
Nordex North AmericaNilesVisit site
Nova Clean EnergyChicagoVisit site
Omron AutomationHoffman EstatesVisit site
Orion PowerAltonVisit site
Partner Engineering & Science, Inc.ChicagoVisit site
Per Sé GroupChicagoVisit site
PhiusChicagoVisit site
Power ConstructionChicagoVisit site
Power KioskChicagoVisit site
Preferred ElectricBloomingdaleVisit site
Quanta Technology, LLCLombardVisit site
RepAir Carbon CaptureNilesVisit site
Rethink ElectricWood DaleVisit site
Reverse Energy Solutions CorpChicagoVisit site
REX Electric & Technologies, LLCChicagoVisit site
S&C Electric CompanyChicagoVisit site
S2G InvestmentsChicagoVisit site
SEG SparkstoneAddisonVisit site
Solar Connections InternationalMcHenryVisit site
Solar Powers IllinoisChicagoVisit site
Sphere Technologies Ltd·Visit site
Sunfox CapitalChicagoVisit site
SurgeX | AMETEKWaukeganVisit site
TerramacSugar GroveVisit site
The Hiller CompaniesChicagoVisit site
The Solar SoldierLisleVisit site
UL Research InstitutesEvanstonVisit site
Valdes Architecture & EngineeringLombardVisit site
Brindley Engineering CorporationLisleVisit site
EcosolutionMantenoVisit site
Illinois Solar Energy AssociationElk Grove VillageVisit site
Midwest Access SolutionsJolietVisit site
MagidRomeovilleVisit site
ACE EngineeringBushnellVisit site
GPRSChampaignVisit site
KGBAL Manufacturing LLCCarol StreamVisit site
Martin SolarMascoutahVisit site
Women of Renewable Industries and Sustainable Energy (WRISE)ChicagoVisit site

Illinois at a glance

Illinois has 158 operating power plants (40.9 GW, led by Natural Gas), 344 named substations, 9 data centers, 259 solar installers and 112 solar companies on Bywatts; retail electricity sales were 135.4 TWh in 2025 (EIA), down 2.3% over ten years.