California Independent System Operator Corporation
89% goes to programs Strong reserves
California Independent System Operator Corporation is a 501(c)(3) organization based in Folsom, California, registered in 1998, with $285,941,806 in FY2024 revenue. CharityIndex grades it A, and it directs about 89% of spending to programs.
250 Outcropping Way, Folsom, CA, 95630 EIN 94-3274043 Since 1998
Revenue (FY2024)
$285.9M
▲ 4.9% vs prior year
Public Benefit median: $140K
Expenses (FY2024)
$292.8M
Net assets
$200.7M
Employees
788
CharityIndex rating
One independent A+ to F grade from four published criteria, each scored separately from IRS filings and combined by weight.
A
AProgram efficiency40% of the rating89% to programs
Measures how much of every dollar spent actually reaches programs, plus what it costs to raise $100 of donations. The worse of the two measures sets the letter (85%+ to programs is an A; under $15 to raise $100 is an A), averaged over the three most recent filings. For California Independent System Operator Corporation: 89% to programs earns a A on this criterion. See the exact thresholds →
B+Financial health25% of the rating8 mo reserves · -2% margin
Measures whether the organization is built to last: how many months its reserves would cover expenses (3+ months earns an A-range score, but hoarding 5+ years of budget is capped) and whether it runs a surplus or a deficit. For California Independent System Operator Corporation: 8 mo reserves · -2% margin earns a B+ on this criterion. See the exact thresholds →
A+Governance25% of the rating6 of 6 checks met
Checks how the organization is run, from its own Form 990: an independent board majority, a board of five or more, conflict-of-interest, whistleblower and document-retention policies, and independently audited financials. The share of disclosed checks that pass sets the letter. For California Independent System Operator Corporation: 6 of 6 checks met earns a A+ on this criterion. See the exact thresholds →
ATransparency10% of the rating4 of 5 disclosure signals
Counts five disclosure signals: a recent filing, a mission statement, program descriptions, a listed website, and the full expense breakdown. More disclosure, better letter. For California Independent System Operator Corporation: 4 of 5 disclosure signals earns a A on this criterion. See the exact thresholds →
Show this grade on your website
A live seal — it updates automatically when the grade changes and links donors to this verified profile.
Mission
California iso corporation's mission statement has been included on schedule o.
Contact & location
- Address
- 250 Outcropping Way, Folsom, CA, 95630
- City
- Folsom
- State
- California
- Category
- Public & Societal Benefit
- Subcategory
- Public Benefit Programs
- Phone
- …
- Website
- …
Financial trends
Revenue grew from $213.7M (FY2013) to $285.9M (FY2024) across 12 reported years.
Financial snapshot
Financial health & position (FY2024)
Liabilities $1.3BNet assets $200.7M
Operating margin
-2.4%
Spent more than it raised in the latest fiscal year.
Total assets
$1.5B
Total liabilities
$1.3B
Net assets
$200.7M
Salaries & benefits
$188.9M
65% of expenses
Board members
5
5 independent
Financials by year
| Fiscal year | Revenue | Expenses | Net assets | Total assets | Form |
|---|---|---|---|---|---|
| 2024 | $285,941,806▲4.9% | $292,763,479▲5.4% | $200,748,234▼5.4% | $1,523,256,943▲4.3% | 990 |
| 2023 | $272,540,764▲6.6% | $277,699,154▲10.7% | $212,263,771▲0.6% | $1,459,997,265▼8.1% | 990 |
| 2022 | $255,713,716▲2.5% | $250,885,967▲9.3% | $210,911,090▼9.3% | $1,587,900,049▲45.1% | 990 |
| 2021 | $249,597,089▼0.1% | $229,434,464▲2.3% | $232,423,679▲7.6% | $1,094,263,808▲15.0% | 990 |
| 2020 | $249,838,855▲9.0% | $224,279,628▲5.0% | $216,040,477▲15.9% | $951,583,530▲12.1% | 990 |
| 2019 | $229,176,886▲0.4% | $213,615,259▼3.8% | $186,460,025▲12.1% | $848,713,736▲11.2% | 990 |
| 2018 | $228,194,347▲1.9% | $221,993,868▲9.2% | $166,307,468▲2.7% | $763,020,969▲3.0% | 990 |
| 2017 | $224,035,523▲4.8% | $203,371,945▲0.1% | $161,897,784▲20.4% | $740,687,564▼6.2% | 990 |
| 2016 | $213,853,844▼1.0% | $203,245,216▲1.1% | $134,502,989▲7.8% | $789,254,619▲8.2% | 990 |
| 2015 | $216,011,750▲0.1% | $201,085,015▼6.2% | $124,731,394▲11.9% | $729,768,636▼11.7% | 990 |
| 2014 | $215,716,005▲1.0% | $214,431,493▼15.8% | $111,451,674▲0.5% | $826,368,570▲0.6% | 990 |
| 2013 | $213,678,728 | $254,571,385▲2.4% | $110,910,324▼28.5% | $821,337,931▲4.3% | 990 |
| 2012 | — | $248,509,341▲4.0% | $155,109,460▼18.8% | $787,476,211▼11.6% | 990 |
| 2011 | — | $239,054,231▲5.6% | $191,118,035▼20.0% | $890,553,612▼4.4% | 990 |
| 2010 | — | $226,273,659 | $239,028,565 | $931,709,149 | 990 |
Original Form 990 PDFs (the Form column) are served by ProPublica Nonprofit Explorer, as filed with the IRS. Create a free account to download the CSV report.
Leadership & compensation (FY2024)
Highest-paid: Elliott Mainzer — $2,088,685 (0.71% of total expenses)
| Name | Title | Hours/week | Compensation |
|---|---|---|---|
| Elliott Mainzer | President & Ceo | 40 | $2,088,685 |
| Mark Rothleder | Sr Vp & Chief Operating Off. | 40 | $1,486,414 |
| Roger Collanton | Vp, Gen. Cnsl. & Chief Comp. Off. | 40 | $900,539 |
| Ryan Seghesio | Vp, Chief Financial Off. & Treasurer | 40 | $859,314 |
| Neil Millar | Vp, Infrastructure & Ops Planning | 40 | $815,105 |
| Stacey Crowley | Vp, External Affairs | 40 | $805,977 |
| Anna Mckenna | Vp, Market Design & Analysis | 40 | $786,029 |
| Jodi Ziemathis | Vp, Human Resources | 40 | $779,475 |
| Khaled Abdul-rahman | Vp, Power Systems & Mkt Technology | 40 | $721,409 |
| Dede Subakti | Vp, System Operations | 40 | $656,944 |
| Joanne Serina | Vp, Stakeholder Engagement | 40 | $590,279 |
| Burton Gross | Deputy Gen. Cnsl. - Legal | 40 | $504,389 |
| John Anders | Deputy Gen. Cnsl. - Development | 40 | $491,857 |
| Eric Hildebrandt | Exec. Dir., Market Monitoring | 40 | $467,091 |
| Andrew Ulmer | Assistant Gen. Cnsl. - Fed Reg & Mkt | 40 | $433,352 |
| John Phipps | Executive Director of Grid Operations | 40 | $426,323 |
| Hugo Frech | Exec Dir., It Ifs. Arc. & Info Sec. | 40 | $415,874 |
| Joe Binstein | Manager, Balancing Authority Operations | 40 | $415,671 |
| Angelina Galiteva | Board of Governors | 8 | $93,000 |
| Mary Leslie | Board of Governors | 8 | $92,500 |
Top vendors & contractors (FY2024)
| Contractor | Services | Paid |
|---|---|---|
| Siemens Industry Inc | Engineering Services | $13,519,273 |
| Open Access Technology International In | Consulting | $5,048,406 |
| Corestaff Services | Temporary Staffing | $4,293,291 |
| Lorien | Temporary Staffing | $2,673,283 |
| Teksystems Inc | Consulting | $2,645,976 |
Similar organizations in Public Benefit
Public Benefit
Valley Strong Credit Union
Bakersfield, CA
$263.7M
Aannual revenue
Public Benefit
Calhfa Homeowner Relief Corporation
Sacramento, CA
$243.3M
Bannual revenue
Public Benefit
Credit Unions In the State of California
San Jose, CA
$110.4M
Aannual revenue
Public Benefit
Rand Corporation
Santa Monica, CA
$461.5M
Aannual revenue
Public Benefit
Monterra Credit Union
Redwood City, CA
$94.8M
B+annual revenue
Public Benefit
Credit Unions In the State of California
Westminster, CA
$92.0M
Aannual revenue
Public Benefit
Keypoint Credit Union
San Jose, CA
$80.3M
Aannual revenue
- Public Benefit
Chan Zuckerberg Initiative Advocacy
Palo Alto, CA
$76.0M
Aannual revenue
Public Benefit
Pacific Service Credit Union
Concord, CA
$75.1M
Aannual revenue
Public Benefit
Electric Power Research Institute Inc
Palo Alto, CA
$503.2M
B+annual revenue
Compare California Independent System Operator Corporation
Frequently asked questions
- Is California Independent System Operator Corporation a legitimate nonprofit?
- Yes. California Independent System Operator Corporation is a 501(c)(3) organization registered with the U.S. Internal Revenue Service under EIN 94-3274043, based in Folsom, California. Donations are tax-deductible.
- What is California Independent System Operator Corporation's EIN?
- California Independent System Operator Corporation's Employer Identification Number (EIN) is 94-3274043.
- How much revenue does California Independent System Operator Corporation report?
- California Independent System Operator Corporation reported $285,941,806 in total revenue on its fiscal year 2024 IRS Form 990 filing.
- How much of California Independent System Operator Corporation's spending goes to programs?
- California Independent System Operator Corporation spends about 89% of its total expenses on programs, based on its latest IRS Form 990.
- What financial grade does California Independent System Operator Corporation have?
- CharityIndex grades California Independent System Operator Corporation A, based on program efficiency and fundraising cost.
- How much does California Independent System Operator Corporation's highest-paid employee make?
- The highest reported compensation on California Independent System Operator Corporation's latest Form 990 is $2,088,685, paid to Elliott Mainzer (President & Ceo).
More nonprofits in Folsom
Explore more
Data for California Independent System Operator Corporation (EIN 94-3274043) comes from the IRS Business Master File and e-filed Form 990 returns, via CharityIndex. Figures reflect what the organization reported to the IRS for each fiscal year.