H-1B sponsorCAFEIN 94-3274043Updated Jun 2026

California Independent System Operator Corporation

US H-1B Labor Condition Application activity for California Independent System Operator Corporation. Filed 267 disclosures between FY2010 and FY2026 from worksites with a CA headquarters indicator.

Total filings

Outside top-N · FY2026

Certified

100.0%

unconditional · FY2026

Withdrawn

0.0%

withdrawn rate · FY2026

Denied

0.0%

rejection rate · FY2026

Summary

The California Independent System Operator Corporation (California ISO) is the grid operator managing electricity transmission across most of California. It has filed 267 H-1B petitions since 2010, with peak activity in the early 2010s and a resurgence in recent years.

In FY2026, California ISO filed 7 H-1B applications and achieved a 100% certification rate. The organization's all-time certification rate stands at 24.72%, with no denials and 1.5% withdrawn filings across its history. This lower overall certification rate reflects the highly specialized and competitive nature of H-1B applications for grid-operations engineering roles.

Electrical Engineers dominate California ISO's H-1B sponsorship portfolio, accounting for 94 of 267 filings. Software Developers (48 filings), Operations Research Analysts (40), Mechanical Engineers (17), and Market Research Analysts (14) round out the top five occupation categories. This staffing pattern reflects the organization's mission in power systems engineering and data analytics.

California ISO H-1B sponsor
California Independent System Operator H-1B filings
grid operator H-1B visa sponsorship
electrical engineer H-1B California
California ISO prevailing wage

Outcome breakdown

Share of California Independent System Operator Corporation’s LCAs by DOL case status, all fiscal years. Use the year filter above for a single-year breakdown.

Certified83.5%

Cert-withdrawn11.4%

Withdrawn5.1%

Top occupations sponsored

SOC codes filed most by California Independent System Operator Corporation across all fiscal years. Click any row to open the national salary guide.

#	SOC	Title	Filings
1	17-2071	Electrical Engineers	94
2	15-1252	Software Developers	48
3	15-2031	Operations Research Analysts	40
4	17-2141	Mechanical Engineers	17
5	13-1161	Market Research Analysts and Marketing Specialists	14
6	17-2051	Civil Engineers	14
7	15-1253	Software Quality Assurance Analysts and Testers	5
8	15-1244	Network and Computer Systems Administrators	4
9	13-1081	Logisticians	3
10	19-3011	Economists	3

Electrical Engineers

Software Developers

Operations Research Analysts

Mechanical Engineers

Market Research Analysts and Marketing Specialists

Civil Engineers

Software Quality Assurance Analysts and Testers

Network and Computer Systems Administrators

Logisticians

Economists

Filings by fiscal year

Year-over-year H-1B filing volume — a hiring-demand signal, not headcount.

Year	Filings
FY2010	29
FY2011	27
FY2012	16
FY2013	17
FY2014	14
FY2015	17
FY2016	21
FY2017	12
FY2018	20
FY2019	15
FY2020	1
FY2021	1
FY2022	1
FY2023	14
FY2024	18
FY2025	37
FY2026	7

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