President & CEO at California Independent System Operator Corporation. Listed as an officer, director, or key employee across 1 organization on the Form 990 record.
Ambiguous identityThis name matches 1 other individual we could not verify as the same person. Each is kept as a separate record below — treat them as distinct people unless an explicit match is confirmed.
Organizations
1
Roles reported
1
Reported compensation
$2.1M
Others who share this name
1
Who this is
Profile
Everything on the left is verified from the IRS filings. The biography on the right is compiled from public web sources and grounded to that filed record.
Received $2.1M in total reported compensation on the most recent Form 990 (Part VII).
Facts extracted directly from each organization's Form 990, Part VII.
Biography Web-sourced
President and Chief Executive Officer of the California Independent System Operator (CAISO), the grid operator for most of California. Joined CAISO in September 2020 after an 18-year career at the Bonneville Power Administration, including seven years as Administrator and CEO, with expertise in renewable energy integration and grid reliability.
Compiled from public web sources (4 cited), grounded to the filed record.
Track record
Career & tenure
Real tenure, career, and education — from public web sources, what you need to vet a founder or leader beyond the filing window.
Tenure here
2020–present
Verify independently
Find them online
Primary links to check this person directly — their own pages, not an aggregator.
California Independent System Operator CorporationPresident & CEO · $285.9M revenue · Folsom, CACALIFORNIA INDEPENDENT SYSTEM OPERATOR CORPORATION'S (CALIFORNIA ISO) MISSION STATEMENT HAS BEEN INCLUDED ON SCHEDULE O.pay $1.4M → $2.1MFiled FY2024, FY2023, FY2022 · Source: Form 990, Part VII
$2.1Mreported comp
Disambiguation
Other people named Elliott Mainzer
Different individuals who share this name, separated by IRS Schedule R, mailing address, and shared-board evidence. The 990 carries no person identifier, so some may still be the same person.
E
Elliott Mainzer1 organization · Portland, ORWestern Energy Institute
Network
Serves alongside
Other officers, directors & key employees at this person's organizations, by latest reported compensation.
Public data from IRS Form 990 e-file & the Business Master File. Individuals appear here because they were named as an officer, director, or key employee on a nonprofit's Form 990; people are grouped by name plus corroborating evidence (Schedule R, shared address, shared board members). · philanthropy.org
Sign-in is temporarily unavailable
Leave your email and we’ll let you know when you can finish signing in and follow
the organization.