Certification Rate
100%
2026 data Public-data reference Official source
Sema4 OpCo, Inc
28 H-1B petitions, 100% certified, $109,414 median salary, FY2023–2026.
STAMFORD, CT NAICS: 62151
The verdict
Sema4 OpCo, Inc filed 28 H-1B petitions, more than 94% of U.S. sponsors - certified at 100% with a $109,414 median offered wage.
- 28
- H-1B petitions, FY2023–FY2026
- 100%
- DOL-certified
- $109,414
- median offered wage
- Top 6%
- of sponsors by volume
Based in STAMFORD, CT. Computed live from U.S. Department of Labor LCA disclosures.
H-1B sponsorship profile: Sema4 OpCo, Inc. Across U.S. Department of Labor LCA disclosures, Sema4 OpCo, Inc filed 28 Labor Condition Applications covering 28 H-1B worker positions between fiscal year 2023 and fiscal year 2026. The employer’s DOL certification rate sits at 100% (28 certified of 28 filed), a useful proxy for how cleanly their prevailing-wage attestations pass the Labor Department’s preliminary review before USCIS adjudication.
Compensation spread. Offered wages on Sema4 OpCo, Inc’s H-1B petitions range from $59,000 at the low end to $250,000 at the high end, with a petition-weighted average of $109,414. That range reflects the mix of occupations the company sponsors, led by Bioinformatics Scientist (4 petitions at $92,250 avg), followed by Backend Software Engineer and Laboratory Technologist. H-1B salaries reported on LCAs must meet or exceed the DOL prevailing wage for the role and worksite, so the spread also tracks wage-level geography and seniority.
Geographic footprint. Sema4 OpCo, Inc is headquartered in STAMFORD, CT under NAICS code 62151, and places H-1B workers across 6 states, most heavily in CT, NY, MD. Combined, these signals give a granular view of how one employer uses the H-1B program, volume, approval cleanliness, wage posture, and where the jobs actually sit on the map.
Where Sema4 OpCo, Inc ranks. By H-1B petition volume, Sema4 OpCo, Inc is #7,784 of 119,880 employers nationally and #85 of 1,323 employers headquartered in CT. Both ranks are computed live from the same underlying petition counts, not a separate estimate.
Avg. Salary
$109,414
Median Salary
$109,414
Total Workers
28
Compare with another sponsor
Sema4 OpCo, Inc vs a peer vs the national average, from DOL LCA data.
Avg. offered wage$109,414 · 1% higher than Yale University
This sponsor
Peer
$108,703
National avg.
$112,482
Certification rate100.0% · 1% higher than Yale University
This sponsor
Peer
99.2%
National avg.
97.7%
Total petitions28 · 98% lower than Yale University
This sponsor
Peer
1,288
National avg.
16
Filing Growth (FY2023 to FY2026) 5.0%
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Salary Analysis
Compensation range for H-1B positions at Sema4 OpCo, Inc
Minimum
$59,000
Maximum
$250,000
Average Salary
$109,414
Wage vs. DOL Minimum
+7.5%
national avg +17.9%
Typical DOL Wage Level
Qualified (Level II)
42.9% of petitions
Full-Time Positions
100%
Primary Worksite County
FAIRFIELD, CT
46.4% of petitions
Petition History
H-1B filing trends from FY2023 to FY2026
FY2023 22 petitions · 31.8% certified · $112,345 avg
FY2024 3 petitions · 0% certified · $68,667 avg
FY2025 2 petitions · 0% certified · $123,000 avg
FY2026 is partial data (through Q1). Chart shows completed fiscal years only.
| Year | Petitions | Certified | Avg. Salary |
|---|---|---|---|
| FY2023 | 22 | 7 | $112,345 |
| FY2024 | 3 | 0 | $68,667 |
| FY2025 | 2 | 0 | $123,000 |
| FY2026(partial) | 1 | 0 | $140,000 |
Top Occupations
Most frequently sponsored job titles at Sema4 OpCo, Inc
| Job Title | Petitions | Avg. Salary |
|---|---|---|
| Bioinformatics Scientist | 4 | $92,250 |
| Backend Software Engineer | 3 | $110,000 |
| Laboratory Technologist | 2 | $59,500 |
| Laboratory Manager | 2 | $91,000 |
| Data Engineer | 2 | $155,000 |
| Assistant Director, Pipeline Eng & Innvtn, Bioinformatics | 2 | $140,000 |
| Software Engineer, Bioinformatics Production | 1 | $93,000 |
| Senior Project Manager, Oncology | 1 | $100,000 |
| Senior Cloud Architect | 1 | $150,000 |
| Research Associate, Data Science | 1 | $97,739 |
| Principal Scientist, Emerging Research Lead | 1 | $136,000 |
| Manager, Software Quality Engineering | 1 | $99,000 |
| Laboratory Technologist, Molecular | 1 | $81,349 |
| Integration Engineer | 1 | $109,500 |
| Head of Lab Ops Platform | 1 | $250,000 |
Geographic Distribution
Where Sema4 OpCo, Inc places H-1B workers across the United States
Recent LCA Petitions
Latest H-1B labor condition applications filed by Sema4 OpCo, Inc
| Job Title | Location | Salary | Status | Year |
|---|---|---|---|---|
| Assistant Director, Pipeline Eng & Innvtn, Bioinformatics | Stamford, CT | $140,000 | Certified - Withdrawn | FY2026 |
| Data Engineer | New York, NY | $155,000 | Certified - Withdrawn | FY2025 |
| Laboratory Manager | Gaithersburg, MD | $91,000 | Certified - Withdrawn | FY2025 |
| Clinical Technologist | Stamford, CT | $31 /Hour | Certified - Withdrawn | FY2024 |
| Data Scientist, Clinical Informatics | Stamford , CT | $82,000 | Certified - Withdrawn | FY2024 |
| Laboratory Technologist | Stamford, CT | $59,000 | Certified - Withdrawn | FY2024 |
| Data Engineer | New York, NY | $155,000 | Certified | FY2023 |
| Principal Scientist, Emerging Research Lead | Stamford, CT | $136,000 | Certified - Withdrawn | FY2023 |
| Integration Engineer | Stamford, CT | $109,500 | Certified - Withdrawn | FY2023 |
| Bioinformatics Scientist | Stamford, CT | $75,000 | Certified - Withdrawn | FY2023 |
| Data Operations Manager | Tarrytown, NY | $140,000 | Certified - Withdrawn | FY2023 |
| Backend Software Engineer | Binghamton, NY | $110,000 | Certified | FY2023 |
| Assistant Director, Pipeline Eng & Innvtn, Bioinformatics | Stamford, CT | $140,000 | Certified | FY2023 |
| Bioinformatics Scientist | Stamford, CT | $88,000 | Certified - Withdrawn | FY2023 |
| Business Analyst, Product Development | Stamford, CT | $70,000 | Certified - Withdrawn | FY2023 |
| Bioinformatics Scientist | Allentown, PA | $115,000 | Certified - Withdrawn | FY2023 |
| Head of Lab Ops Platform | New York, NY | $250,000 | Certified | FY2023 |
| Senior Cloud Architect | Brunswick, OH | $150,000 | Certified - Withdrawn | FY2023 |
| Backend Software Engineer | Branford, CT | $110,000 | Certified | FY2023 |
| Laboratory Manager | Gaithersburg, MD | $91,000 | Certified | FY2023 |
| Bioinformatics Scientist | Gaithersburg, MD | $91,000 | Certified - Withdrawn | FY2023 |
| Backend Software Engineer | Brandford, CT | $110,000 | Certified | FY2023 |
| Manager, Software Quality Engineering | Tampa, FL | $99,000 | Certified - Withdrawn | FY2023 |
| Research Associate, Data Science | Stamford, CT | $97,739 | Certified - Withdrawn | FY2023 |
| Senior Project Manager, Oncology | Branford, CT | $100,000 | Certified - Withdrawn | FY2023 |
| Laboratory Technologist, Molecular | Branford, CT | $39 /Hour | Certified - Withdrawn | FY2023 |
| Software Engineer, Bioinformatics Production | Stamford, CT | $93,000 | Certified - Withdrawn | FY2023 |
| Laboratory Technologist | Stamford, CT | $60,000 | Certified - Withdrawn | FY2023 |
Similar Employers in CT
Other H-1B sponsors based in CT, ranked by petition volume
Yale University
New Haven, CT
1,288 petitions $108,703 avg
University of Connecticut
Storrs, CT
378 petitions $79,703 avg
Quest Global Services- NA, Inc
WINDSOR, CT
363 petitions $97,702 avg
Cyma Systems Inc
MANCHESTER, CT
265 petitions $108,485 avg
SS&C Technologies, Inc
Windsor, CT
265 petitions $128,086 avg
Cyient, Inc
East Hartford, CT
263 petitions $87,042 avg
H-1B Guides
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H-1B Visa Process Explained
Step-by-step guide from LCA filing to work authorization
LCA Wage Levels Explained
Understanding prevailing wage levels I through IV
Understanding H-1B Data
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H-1B Salary Calculator
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Frequently Asked Questions
How many H-1B petitions has Sema4 OpCo, Inc filed?
Sema4 OpCo, Inc has filed 28 H-1B LCA petitions covering 28 worker positions from FY2023 to FY2026.
What is the H-1B approval rate for Sema4 OpCo, Inc?
Sema4 OpCo, Inc has a 100% certification rate, with 28 out of 28 petitions certified.
What is the average H-1B salary at Sema4 OpCo, Inc?
The average H-1B salary at Sema4 OpCo, Inc is $109,414. Salaries range from $59,000 to $250,000.
What are the most common H-1B job titles at Sema4 OpCo, Inc?
The top H-1B job titles at Sema4 OpCo, Inc include Bioinformatics Scientist, Backend Software Engineer, Laboratory Technologist. The most common position is Bioinformatics Scientist with 4 petitions at an average salary of $92,250.
Where is Sema4 OpCo, Inc located?
Sema4 OpCo, Inc is headquartered in STAMFORD, CT. Their H-1B workers are distributed across 6 states, with the most positions in CT, NY, MD.
Is Sema4 OpCo, Inc H-1B dependent?
No, Sema4 OpCo, Inc is not classified as H-1B dependent.
How has Sema4 OpCo, Inc's H-1B sponsorship changed over time?
Sema4 OpCo, Inc filed 22 petitions in FY2023 and 1 in FY2026. Average salary increased from $112,345 to $140,000.
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Data Sources
H-1B visa petition data is sourced from the U.S. Department of Labor (DOL) Labor Condition Application (LCA) disclosure files. Data covers fiscal years 2023 through 2026. Salary figures reflect amounts listed on LCA petitions, not actual compensation paid. Certification of an LCA does not guarantee visa approval.
Source: DOL Foreign Labor Performance Data
Source: U.S. Department of Labor, Office of Foreign Labor Certification, LCA Disclosure Data (FY2023–FY2026)
Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the U.S. Department of Labor LCA disclosure files. Consult a qualified professional before making decisions based on this data.
Read our methodology , how this data is sourced, computed, and verified.
Every figure on PlainVisa is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.