Standard Industrial Classification Codes (SIC)
Data Source
SIC Code
Description
Primary
AIRS/AFS
4911
ELECTRIC SERVICES
AIRS/AFS
4911
ELECTRIC SERVICES
ICIS
4911
ELECTRIC SERVICES
AIR
4911
ELECTRIC SERVICES
AIR
4911
ELECTRIC SERVICES
Facility Codes and Flags
Alternative Names
Organizations
Affiliation Type
Name
DUNS Number
Information System
Mailing Address
OWNER/OPERATOR
NORTHWESTERN ENERGY
EIA-860
View
TRANSMISSION OR DISTRIBUTION SYSTEM OWNER
NORTHWESTERN ENERGY
EIA-860
View
OWNER/OPERATOR MAILING ADDRESS
NORTHWESTERN ENERGY CORPORATION
EIA-860
OWNER/OPERATOR
NORTHWESTERN ENERGY
EIA-860
View
PARENT COMPANY
NORTHWESTERN ENERGY - (SD)
EIA-860
PARENT COMPANY
NORTHWESTERN ENERGY - (SD)
EIA-860
View
National Industry Classification System Codes (NAICS)
Facility Mailing Addresses
Affiliation Type
Delivery Point
City Name
State
Postal Code
Information System
OWNER/OPERATOR
600 MARKET STREET W
HURON
SD
57350
EIA-860
FACILITY MAILING ADDRESS
P.O. BOX 1318
HURON
SD
57350
AIRS/AFS
OWNER/OPERATOR
3010 WEST 69TH STREET
SIOUX FALLS
SD
EIA-860
TRANSMISSION OR DISTRIBUTION SYSTEM OWNER
3010 WEST 69TH STREET
SIOUX FALLS
SD
EIA-860
PARENT COMPANY
3010 WEST 69TH STREET
SIOUX FALLS
SD
EIA-860
FACILITY MAILING ADDRESS
P.O. BOX 1318
HURON
SD
57350
AIR
FACILITY MAILING ADDRESS
178 IOWA AVE. N
HIGHMORE
SD
99999
AIR
FACILITY MAILING ADDRESS
178 IOWA AVE. N
HIGHMORE
SD
99999
AIRS/AFS
Contacts
Query executed on: OCT-14-2025
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