U.S. Immigration Data

Priority dates, work visas, and labor market data

HEIRLOOM CARBON TECHNOLOGIES, INC.

H-1B & Green Card Sponsorship Data

Source: US Dept of Labor. Represents Base Salary only. Excludes RSUs, signing bonuses, and variable compensation. View All Salary Records

35

Total Filings

2021-Present

74.3%

Approval Rate

Certified Cases

$137,301

Median Salary

Across All Roles
Filings by Program
32
H-1B Filings
3
PERM Filings
Labor certification, the first green card step
Recent Filing Activity
By Program Type
Program Last Filing Dated filings (2021–Present)
H-1B Apr 22, 2026 25
H-1B1 May 22, 2025 4
PERM Feb 6, 2025 3
E-3 Nov 13, 2024 3
Counts only filings that carry a submission date, so these totals run below the Filings by Program counts above.
By Role (Most Recent)
Role Last Filing Dated filings (2021–Present)
Mechanical Design Engineer, Sustaining Apr 22, 2026 1
SENIOR PROCESS DEVELOPMENT ENGINEER Apr 22, 2026 2
Technical Project Manager Apr 6, 2026 1
Senior Controls Project Engineer Sep 30, 2025 3
Senior Electrical Engineer Jul 16, 2025 1
Top Roles by Filings
Role Count Median Salary Min Max
CONTROLS ENGINEER 3 $127,234 $127,234 $130,000
PROCESS DEVELOPMENT ENGINEER 3 $118,830 $105,955 $140,046
Senior Controls Project Engineer 3 $167,500 $134,056 $168,480
CONTROLS PROJECT ENGINEER 2 $127,234 $127,234 $127,234
Mechanical Design Engineer 2 $128,284 $126,568 $130,000
Mechanical Design Manager, Components 2 $154,087 $148,096 $160,077
PLM Solution Engineer II 2 $140,078 $139,589 $140,566
SENIOR PROCESS DEVELOPMENT ENGINEER 2 $132,652 $128,211 $137,093
Sr. Controls Project Engineer (ME006) 2 $202,883 $202,883 $202,883
CHEMICAL ENGINEER 1 $82,992 $82,992 $82,992
Salary Distribution (All Filings + Role Overlays)
10th Percentile

$120,602

25th Percentile

$127,234

Median (50th)

$137,301

75th Percentile

$157,914

90th Percentile

$193,324

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Filings by State (Chart)
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Median Salary by State (Chart)
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Filing Volume Trend
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Median Salary Trend
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Filing Pace by Program
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Year-over-Year Statistics
Fiscal Year Filings Median Salary Approval Rate
2021 1 $130,000 100.0%
2022 3 $130,000 100.0%
2023 3 $167,500 100.0%
2024 9 $127,234 66.7%
2025 13 $140,566 69.2%
2026 6 $131,134 66.7%
Processing Time (Filing to Decision)
7
Median Days
81
Average Days
7–14
P25–P75 Range
35
Cases with Data
By Program
Program Median Days Avg Days P25–P75 Cases
H-1B 7 84 7–8 25
Data Source: U.S. Department of Labor (DOL) H-1B and green card (PERM) disclosure data. Represents Base Salary only (excludes RSUs, signing bonuses, and variable compensation). Data shown for fiscal years 2021 to present. Last updated: October 12, 2026