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MISO Members

Membership gives Stakeholders a voice in the committee process allowing them to provide advice and input to MISO on strategic and operational business decisions. It also guarantees participation in the election of MISO’s Board of Directors. Each member gets a single vote and can represent one or several companies.

Common Membership Downloads

Stakeholder Groups

Membership applicants join one of ten stakeholder groups for representation and voting purposes at meetings of the Advisory Committee and Planning Advisory Committee, as well as for the election of MISO's Board of Directors. A member may participate in more than one stakeholder group, provided it meets the governance guidelines of the applicable stakeholder group, as approved by the Board of Directors. A member may also change its stakeholder participation once a year by contacting membership

For a complete list of membership representation in the ten stakeholder groups, please refer to the MISO Membership List. MISO members are listed below by the following membership status: Transmission Owner (having transferred functional control of Transmission Facilities to MISO); Coordinating Member; and Non-Transmission Owner, regardless of stakeholder participation. 

AEP Indiana Michigan Transmission Company, Inc.
ALLETE, Inc. (for its operating division Minnesota Power, Inc., and its wholly-owned subsidiary, Superior Water, Light and Power Company)
Ameren Illinois Company (d/b/a Ameren Illinois)
Ameren Transmission Company of Illinois (ATXI)
American Transmission Company, LLC (ATCLLC)
Ames Municipal Electric System
Arkansas Electric Cooperative Corporation
Big Rivers Electric Corporation
Board of Water, Electric, and Communications Trustees of the City of Muscatine, Iowa
Central Minnesota Municipal Power Agency
City of Alexandria, Louisiana
City of Columbia, Missouri (Water and Light Dept.)
City of Henderson, KY, Utility Commission, d/b/a Henderson Municipal Power & Light
City of Rochester, a Minnesota Municipal Corp, Rochester Public Utility Board
City of Springfield, Illinois (Office of Public Utilities)
Cleco Power LLC
Consumers Energy Company
Cooperative Energy
Dairyland Power Cooperative
Duke Energy Indiana, LLC
East Texas Electric Cooperative, Inc.
Entergy Arkansas, LLC
Entergy Louisiana, LLC
Entergy Mississippi Inc.
Entergy New Orleans, LLC
Entergy Texas, Inc.
Great River Energy
GridLiance Heartland LLC
Hoosier Energy Rural Electric Cooperative, Inc.
Indiana Municipal Power Agency
Indianapolis Power and Light Company
International Transmission Company (d/b/a ITCTransmission)
ITC Midwest LLC
Lafayette City-Parish Consolidated Government
Michigan Electric Transmission Company, LLC
Michigan Public Power Agency
Michigan South Central Power Agency
MidAmerican Energy Company
Minnesota Municipal Power Agency
(c/o Avant Energy, Inc., agent for MMPA)
Missouri Basin Municipal Power Agency (d/b/a Missouri River Energy Services)
Montana-Dakota Utilities Co.
Municipal Electric Utility of the City of Cedar Falls, Iowa
Northern Indiana Public Service Company LLC
Northern States Power Company (Minnesota) and Northern States Power Company (Wisconsin)
Northwestern Wisconsin Electric Company
Otter Tail Power Company
Pioneer Transmission, LLC
Prairie Power, Inc.
Republic Transmission, LLC
Southern Illinois Power Cooperative
Southern Indiana Gas & Electric Company d/b/a Vectren Energy Delivery of Indiana, Inc.
Southern Minnesota Municipal Power Agency
Union Electric Company (d/b/a Ameren Missouri)
Wabash Valley Power Association, Inc.
Willmar Municipal Utilities
Wolverine Power Supply Cooperative, Inc.
WPPI Energy

Manitoba Hydro

AEP Transmission Holding Company, LLC
Alcoa Power Generating Incorporated
ALLETE Clean Energy, Inc.
Alliant Energy Corporate Services, Inc.
American Electric Power Service Corporation
(as agent for the AEP Operating Companies)
American Municipal Power, Inc.
Anbaric Holding, LLC
Apex Clean Energy Management, LLC
ArcelorMittal USA, LLC
Association of Businesses Advocating Tariff Equity (ABATE)
Avangrid Networks, Inc.
Avangrid Renewables, LLC
Basin Electric Power Cooperative
Beauregard Electric Cooperative, Inc
Benton County Wind Farm, LLC
Benton Utilities (City of Benton, AR)
Boston Energy Trading and Marketing LLC
BP Energy Company
Buckeye Power, Inc.
Calpine Energy Services, L.P.
Cardinal Point Electric, LLC
Castleton Commodities Merchant Trading L.P.
Century Aluminum of Kentucky, General Partnership
Citigroup Energy Inc.
City of Cleveland, Department of Public Utilities Division of Cleveland Public Power
City of Lansing By its Board of Water and Light
Claiborne Electric Cooperative, Inc
Cleco Cajun LLC
Coalition of MISO Transmission Customers
Cobra Industrial Service
Community Energy Solar, LLC
CP Energy Marketing (US) Inc.
DC Energy Midwest, LLC
Direct Energy Business LLC
DTE Energy
Duke-American Transmission Company, LLC
Dynegy Energy Services, LLC
Dynegy Power Marketing, LLC
EasTexTransCo, LLC
EDF Renewables Development, Inc.
EDF Trading North America, LLC
EDP Renewables North America LLC
Energy Harbor LLC
Entergy Nuclear Power Marketing, LLC
Evergy Kansas Central, Inc.
Evergy Missouri West, Inc.
EWO Marketing, LLC
Exelon Corporation
Exelon Generation Company, LLC
Exelon Transmission Company, LLC
Ferrovial Transco International BV
Geronimo Energy Holdings, LLC
Google Energy LLC
Great Lakes Utilities
H.Q. Energy Services (U.S.) Inc.
Heartland Consumers Power District
Illinois Industrial Energy Consumers
Illinois Municipal Electric Agency
Illinois Power Marketing Company
Invenergy Energy Management LLC
ITC Midcontinent Development LLC
J. Aron & Company
Jefferson Davis Electric CoOperative, Inc.
LG&E and KU Services Company (as agent for Louisville Gas and Electric Company and Kentucky Utilities Company)
Lincoln Electric System
Longroad Energy Management, LLC
Louisiana Energy Users Group
LS Power Associates, L.P.
LS Power Midcontinent, LLC
Madison Gas and Electric Company
Main Line Generation, LLC
Mercuria Energy America, Inc.
Messer Energy Services, Inc.
Midland Cogeneration Venture Limited Partnership
Midwest Industrial Customers
c/o Wisconsin Industrial Energy Group, Inc.
Midwest Power Transmission Arkansas, LLC
Missouri Joint Municipal Electric Utility Commission
Monterey MW, LLC
Morgan Stanley Capital Group Inc.
Municipal Energy Agency of Nebraska
NextEra Energy Marketing, LLC
NextEra Energy Transmission Midwest, LLC
NextEra Energy Transmission, LLC
NGV US Transmission Inc.
NRG Energy, Inc.
Nuclear Development, LLC
OGE Transmission, LLC
Oklahoma Gas & Electric
Ontario Power Generation Inc.
Pattern Transmission LP
Pointe Coupee Electric Membership Corporation
PPL Translink, Inc.
Prairie State Generating Company, LLC
Ranger Power LLC
RES America Developments Inc.
Royal Bank of Canada
RRI Energy Services, LLC
RWE Renewables Americas, LLC
Saracen Energy Midwest LP
Savion, LLC
SESCO Enterprises, LLC
Shell Energy North America (US), L.P.
Solios Power LLC
South Louisiana Electric Cooperative Association
Southern Power Company
Southwest Louisiana Electric Membership Corporation
SP Transmission, LLC
Talen Energy Marketing, LLC (formerly PPL Energy Supply, LLC)
Tenaska Frontier Partners, LTD
Tenaska Power Services Co.
Texas Industrial Energy Consumers
The Energy Authority, Inc.
Tradewind Energy, Inc.
TransCanada Energy Sales Ltd.
Transource Energy, LLC
Upper Peninsula Power Company
Urban Grid Solar Projects, LLC
Verdant Plains Electric, LLC
Vitol Inc.
Washington-St. Tammany Electric Cooperative, Inc
Western Area Power Administration - Upper
Westar Energy, Inc.
Western Area Power Administration  - Upper Great Plains Region
Wisconsin Electric Power Company (We Energies)
Wisconsin Public Service Corporation
Xcel Energy Acorn Transmission, LLC
Xcel Energy Birch Transmission, LLC
Xcel Energy Transmission Development Company, LLC
XO Energy MW, LP

Contact Your Stakeholder Group

Eligible End-User Customers  Kevin Murray

Environmental and Other Stakeholder Groups 

Beth Soholt 

Competitive Transmission Developer

Sector Guidelines - Pat Hayes  
Coordination Member  Audrey Penner
Independent Power Producers and Exempt Wholesale Generators (IPP) Sector Guidelines - Travis Stewart
Municipals Cooperatives, and Transmission Dependent Utilities (Munis/Coops/TDUs) Sector Guidelines - Christopher Plante
Power Marketers and Brokers (PMs) James Sorrels
Public Consumer Advocates (Non-member Sector) Mike Gahimer
State Regulatory Authorities Marcus Hawkins
Transmission Owners (TO) Stacie Herbert


Prospective Transmission Owners and non-transmission owners must sign and submit the applicable agreements provided below.

Inquiries concerning potential Transmission-Owning membership may be directed to TOIntegrations.

Submit your application

720 City Center Drive,
Carmel, IN  46032

Transmission Owners Agreement

Officially called “The Agreement of Transmission Facilities Owners to Organize the Midwest Independent Transmission System Operator, Inc., A Delaware Non-Stock Corporation ("MISO Agreement").”

Supplemental Agreement

This multi-party contract between the MISO, International Transmission Company (“ITC”) and each of the MISO Transmission Owners amends the Appendix I Agreement between ITC and the MISO.

Agency Agreement

By signing Appendix G of the MISO Agreement, Transmission Owning Members will authorize MISO to act as the agent in the performance of Tariff administrative duties related to "Non-transferred Transmission Facilities."

Amended Balancing Authority Agreement

This agreement, between the MISO and the MISO Local Balancing Authorities, resulted from negotiations regarding the establishment and implementation of the MISO Ancillary Services Markets.

Submit your application

720 City Center Drive, 
Carmel, IN  46032