California Independent System Operator Corporation
EIN 943274043 · 501(c)(3) · Public charity · Folsom, CA · recognized 1998
- Assets
- $1.5B
- Revenue
- $286M
- Expenses
- $293M
- Investment income
- $13.7M
Form 990 fiscal year ended 12/31/2024
Investment managers
Advisory firms linked via Form 990 Part VII independent contractors.
No linked investment managers yet.
Highest-paid contractors
Form 990 Part VII-B, independent contractors paid over $100k.
| Contractor | Services | Compensation |
|---|---|---|
| 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 |
Officers & directors
Form 990 Part VII-A for the latest fiscal year.
| Name | Title | Compensation | Other |
|---|---|---|---|
| Elliott Mainzer | President & ceo | $2,088,685 | $220,025 |
| Mark Rothleder | Sr vp & chief operating off. | $1,486,414 | $203,465 |
| Roger Collanton | Vp, gen. cnsl. & chief comp. off. | $900,539 | $153,819 |
| Ryan Seghesio | Vp, chief financial off. & treasurer | $859,314 | $140,325 |
| Neil Millar | Vp, infrastructure & ops planning | $815,105 | $104,067 |
| Stacey Crowley | Vp, external affairs | $805,977 | $122,204 |
| Anna Mckenna | Vp, market design & analysis | $786,029 | $140,615 |
| Jodi Ziemathis | Vp, human resources | $779,475 | $141,211 |
| Khaled Abdul Rahman | Vp, power systems & mkt technology | $721,409 | $131,540 |
| Dede Subakti | Vp, system operations | $656,944 | $118,116 |
| Joanne Serina | Vp, stakeholder engagement | $590,279 | $113,947 |
| Burton Gross | Deputy gen. cnsl. - legal | $504,389 | $84,825 |
| John Anders | Deputy gen. cnsl. - development | $491,857 | $95,319 |
| Eric Hildebrandt | Exec. dir., market monitoring | $467,091 | $82,536 |
| Andrew Ulmer | Assistant gen. cnsl. - fed reg & mkt | $433,352 | $88,315 |
| John Phipps | Executive director of grid operations | $426,323 | $78,315 |
| Hugo Frech | Exec dir., it ifs. arc. & info sec. | $415,874 | $64,056 |
| Joe Binstein | Manager, balancing authority operations | $415,671 | $73,306 |
| Angelina Galiteva | Board of governors | $93,000 | $0 |
| Mary Leslie | Board of governors | $92,500 | $0 |
| Joseph Eto | Vice chair | $91,500 | $0 |
| Severin Borenstein | Chair | $89,500 | $0 |
| Jan Schori | Board of governors | $83,500 | $0 |