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EIN 94-3274043

California Independent System Operator (CAISO)

IRS 501(c) type
501(c)(3)
Num. employees
762
City
Folsom
State
California
Year formed
1997
Most recent tax filings
2022-12-01
NTEE code, primary
W20: Government and Public Administration
Description
The California ISO is a nonprofit public benefit corporation that operates the state’s wholesale transmission grid, providing the least cost to the benefit of consumers.
Also known as...
California Independent System Operator Corporation; California ISO
Total revenues
$255,713,716
2022
Total expenses
$250,885,967
2022
Total assets
$1,587,900,049
2022
Num. employees
762
2022

Program areas at CAISO

The organization serves as the System Operator of an integrated statewide electricity transmission grid.

Personnel at CAISO

NameTitleCompensation
Elliot MainzerPresident and Chief Executive Officer$1,415,890
Stephen BerberichChief Executive Officer Emeritus / Executive Biographies / President and Chief Executive Officer$1,772,333
Mark RothlederSenior Vice President and Chief Operating Officer$1,219,354
Ryan SeghesioVice President , Chief Financial Officer and Treasurer$751,376
Eric SchmittVice President , Operations$744,203
...and 18 more key personnel

Financials for CAISO

RevenuesFYE 12/2022
Total grants, contributions, etc.$0
Program services$246,557,423
Investment income and dividends$9,106,602
Tax-exempt bond proceeds$0
Royalty revenue$0
Net rental income$0
Net gain from sale of non-inventory assets$16,473
Net income from fundraising events$0
Net income from gaming activities$0
Net income from sales of inventory$0
Miscellaneous revenues$33,218
Total revenues$255,713,716

Form 990s for CAISO

Fiscal year endingDate received by IRSFormPDF link
2022-122023-11-10990View PDF
2021-122022-11-15990View PDF
2020-122021-11-12990View PDF
2019-122021-04-02990View PDF
2018-122020-01-17990View PDF
...and 9 more Form 990s
Data update history
August 7, 2024
Updated personnel
Identified 5 new personnel
January 2, 2024
Posted financials
Added Form 990 for fiscal year 2022
December 25, 2023
Used new vendors
Identified 1 new vendor, including
July 14, 2023
Posted financials
Added Form 990 for fiscal year 2021
July 13, 2023
Used new vendors
Identified 5 new vendors, including , , , , and
Nonprofit Types
Public utilitiesPublic sector nonprofitsHeadquarter / parent organizationsCharities
Issues
Public policy
Characteristics
LobbyingState / local levelTax deductible donationsAccepts online donations
General information
Address
250 Outcropping Way
Folsom, CA 95630
Metro area
Sacramento-Roseville-Folsom, CA
County
Sacramento County, CA
Website URL
caiso.com/ 
Phone
(916) 351-4400
Facebook page
CaliforniaISO 
Twitter profile
@california_iso 
IRS details
EIN
94-3274043
Fiscal year end
December
Taxreturn type
Form 990
Year formed
1997
Eligible to receive tax-deductible contributions (Pub 78)
Yes
Categorization
NTEE code, primary
W20: Government and Public Administration
NAICS code, primary
2211: Electric Power Generation, Transmission, and Distribution Establishments
Parent/child status
Central organization
California AB-488 details
AB 488 status
May Operate or Solicit for Charitable Purposes
Charity Registration status
Current - Awaiting Reporting
FTB status revoked
Not revoked
AG Registration Number
106852
FTB Entity ID
2009677
AB 488 data last updated ("as-of") date
2024-10-16
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