Employer Ledger
Records as ofOFLC30 Jun 2026OSHA23 Sep 2026300A2023 to 2025WHD15 Jun 2026USAspendingread 2 Oct 2026NLRBno data

Mainspring Energy, Inc.: H-1B filings and workplace records, Menlo Park, California

Industry Electrical Equipment, Appliance, and Component Manufacturing (NAICS 335312)534 employees reported69 federal recordsNewest record

Mainspring Energy, Inc. filed 19 labor condition applications (LCA) in fiscal year 2026, to 30 June 2026. OFLC certified all of them. The median offered wage on its LCAs in fiscal years 2025 to 2026 is $121,451 a year. It filed 2 PERM applications in fiscal year 2026, to 30 June 2026. OFLC certified all of them. An LCA is a filing. It is not a visa and it is not a job.

Is this the same company?

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How the site matches records

Since the last update

No change. The site tracks the LCA filings, PERM applications, OSHA inspections and back wages of this employer record. Changes and data dates

H-1B and PERM: Office of Foreign Labor Certification

Decisions to Newest file fiscal year 2026, quarter 3Read from the committed copy

Employer-specific case information that appears on this website was provided to OFLC by employers who submitted prevailing wage, labor certification and labor attestation applications for processing. These are not employer responses to the Bureau of Labor Statistics' Occupational Employment Statistics (BLS-OES) survey.

Any typographical errors or other data anomalies (e.g., incomplete or blank data fields, etc.) may be due to internal data entry or other external customer errors in completing and submitting the applications for processing.

A small percentage of determinations may be subject to change in subsequent quarterly releases due to appeal or redetermination decisions on employer applications.

The words of the Office of Foreign Labor Certification. Source: Performance Data, read .

LCA filings, fiscal year 2026
19100% certified, year to date
Median offered wage
$121,451a year; prevailing $117,458
Worker positions
59fiscal years 2025 to 2026
PERM applications, fiscal year 2026
2100% certified
Mainspring Energy, Inc.: LCA filings by fiscal year fiscal year 2026 is to 30 Jun 2026
Fiscal yearFilingsCertifiedCertified shareDeniedWithdrawn
20254040100%00
20261919100%00
Mainspring Energy, Inc.: offered wages by job title fiscal years 2025 to 2026
Job titleMedian offered wageLCA filings
Electrical Engineer$124,8424
Test Engineer$118,8103
Mechanical Design EngineerNo data2
Staff Supplier Quality EngineerNo data2
Senior Mechanical EngineerNo data2
Associate Mechanical Design EngineerNo data2
Senior Mechanical Materials Buyer PlannerNo data2
Associate Embedded Software EngineerNo data2
Principal Product Lifecycle Management LeadNo data2
Supplier Quality EngineerNo data1
Sr. Enterprise Data System DeveloperNo data1
Salesforce Admin - Enterprise Data SystemsNo data1

A wage is a year: the rate on the form times its unit, so an hourly rate times 2,080. A median needs three or more applications that state a wage. The list holds the twelve most frequent job titles.

Prevailing wage levels on the filings

Mainspring Energy, Inc.: LCA filings by prevailing wage level
LevelFilingsShare
Level I1729%
Level II1627%
Level III35%
Level IV1017%
Not stated1322%
Mainspring Energy, Inc.: LCA filings by occupation
Occupation (SOC)LCA filingsMedian offered wage, all employers
Mechanical Engineers14$107,146
Validation Engineers11$108,000
Software Developers6$138,494
Electrical Engineers6$121,459
Logisticians4$91,098
Software Quality Assurance Analysts and Testers3$104,728
Database Administrators2$112,690
Project Management Specialists2$120,000
Mainspring Energy, Inc.: LCA filings by worksite state
Worksite stateLCA filings
California50
Ohio3
Texas2
Michigan2
Illinois1
District of Columbia1

OFLC files an LCA under the state of the employer address on the form (California). The worksites can be in other states.

PERM applications (permanent labor certification)

Mainspring Energy, Inc.: PERM applications by fiscal year fiscal year 2026 is to 30 Jun 2026
Fiscal yearApplicationsCertifiedDeniedWithdrawn
20240000
20258800
20262200
Mainspring Energy, Inc.: PERM applications by job title
Job titleApplications
Sr. Technical Program Manager1
Mechanical Engineer1
Associate Mechanical Engineer1
Site Reliability Engineer1
Senior CFD Modeling Engineer1
Supplier Quality Engineer1
Staff Mechanical Engineer1
VP and General Manager, C&I1
Manufacturing Quality Engineer1
Mechanical Design Engineer1
Mainspring Energy, Inc.: PERM applications by occupation
Occupation (SOC)Applications
Mechanical Engineers5
Validation Engineers2
Project Management Specialists1
Computer Network Architects1
Marketing Managers1

Fiscal year 2024 holds the applications on the new Form 9089 only. The median offered wage on the PERM applications is $136,766 a year.

Injury summaries: OSHA Injury Tracking Application, Form 300A

Calendar years 2023 to 2025Read from the committed copy

While OSHA takes multiple steps to ensure the data collected are accurate, problems and errors invariably exist for some establishments. Efforts are made during the collection cycle to correct submission errors; however, some remain unresolved. OSHA does not validate the employee or injury and illness counts reported by establishments.

Recording or reporting a work-related injury, illness, or fatality does not mean that the employer or employee was at fault, that an OSHA rule has been violated, or that the employee is eligible for workers' compensation or other benefits.

The words of the Occupational Safety and Health Administration. Source: Injury Tracking Application (ITA) Data, read .

Total recordable case rate, 2025
1.0cases for each 100 full-time workers
Days away, restricted or transferred (DART), 2025
0.9
Employees reported, 2025
5341 establishment
Recordable cases, 2025
60 deaths
Mainspring Energy, Inc.: case rate beside other establishments, 2025
GroupTotal recordable case rate
This record1.0
Median establishment, NAICS 3351.2
All establishments, NAICS 3351.9
All establishments, California3.7
All establishments, United States3.5
Mainspring Energy, Inc.: Form 300A summaries by year
YearEstablishmentsEmployeesHours workedDeathsDays awayRestricted or transferredOther casesCase rateDART rate
20231390838,68003000.70.7
20241452980,61606121.81.4
202515341,150,16803211.00.9

The figures add up every establishment that filed under this name in California. A rate is blank when the establishments reported fewer than 2,000 hours. The median establishment has 20,000 hours or more.

No record at these agencies

OSHA

OSHA inspections

The enforcement data since 2016 has no OSHA inspection of this employer in California. OSHA records an inspection at the establishment, so sites in other states are under those states.

Records to . Inspections opened since 2016. Read from the agency.

WHD

Back wages

The data since fiscal year 2005 has no concluded Wage and Hour Division case of this employer in California.

Concluded cases to . Cases since fiscal year 2005. Read from the agency.

USAspending

Federal contracts

This employer is not among the 3,903 largest federal contract recipients of the latest 12 months that the site loads from USAspending.

Period the latest 12 months. Read from the agency.

NLRB

Union elections

The site holds no NLRB election results at this time. nlrb.gov did not accept the requests of the site, so the copy is empty.

Data none, the copy on this site is empty. Not read from the agency.

Other employers in California

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Electrical Equipment, Appliance, and Component Manufacturing in California

Questions about this record

What happened to the LCAs of Mainspring Energy, Inc.?
Mainspring Energy, Inc. filed 59 LCAs in fiscal years 2025 to 2026. OFLC certified all of them. OFLC denied none. The employer withdrew none.
Which job title is most frequent on the LCAs of Mainspring Energy, Inc.?
The job title Electrical Engineer has 4 filings. Its median offered wage is $124,842 a year.
Which prevailing wage levels do the LCAs state?
The LCAs state Level I in 29%, Level II in 27%, Level III in 5% and Level IV in 17%, and no level in 22%. The employer states the level on the form.
Has OSHA inspected Mainspring Energy, Inc. in California?
The enforcement data since 2016 has no OSHA inspection of this employer in California. Sites in other states have their own records.

Official channels

Cite this page

Employer Ledger. "Mainspring Energy, Inc. (California)." https://employerledger.com/employer/mainspring-energy-inc-ca/. Records of: Office of Foreign Labor Certification; OSHA Injury Tracking Application, Form 300A. Newest record .

The address of this page does not change. The figures change when an agency publishes new records.

Where the figures come from

  • OFLC Office of Foreign Labor Certification. Decisions to . Newest file fiscal year 2026, quarter 3. Read , from the committed copy.
  • OSHA Occupational Safety and Health Administration. Records to . Inspections opened since 2016. Read , from the agency.
  • 300A OSHA Injury Tracking Application, Form 300A. Calendar years 2023 to 2025. Read , from the committed copy.
  • WHD Wage and Hour Division. Concluded cases to . Cases since fiscal year 2005. Read , from the agency.
  • USAspending USAspending.gov. Period the latest 12 months. Read , from the agency.

The site built this page on . The methodology tells how records are matched and counted. To report an error in the processing, use the corrections page. The agency that holds a record decides disputes about it.