PlainVisa

H-1B Sponsors With the Highest DOL Certification Rates

Which large H-1B sponsors clear the Department of Labor's Labor Condition Application review most cleanly. PlainVisa ranks employers with 500+ petitions by their DOL certification rate.

Research period:

Compiled by PlainVisa Editorial on 2026-06-02

Research question

Among employers that file in volume (500 or more H-1B Labor Condition Applications), which achieve the highest DOL certification rates, and does filing at scale trade off against a clean certification record?

Why the certification rate matters

Every H-1B hire begins with a Labor Condition Application (LCA) filed with the U.S. Department of Labor. On the LCA the employer attests that it will pay at least the prevailing wage for the occupation and worksite, that working conditions will not adversely affect similarly employed U.S. workers, that there is no strike or lockout, and that affected workers have been notified. The DOL reviews each application and either certifies it or denies it. A high certification rate means an employer's filings consistently satisfy these statutory attestations on first review; a lower rate signals applications that were withdrawn, returned for correction, or denied on prevailing-wage or completeness grounds before they ever reached the U.S. Citizenship and Immigration Services adjudication stage.

Certification is not the same as visa approval. The LCA is the labor-market test that precedes the I-129 petition; USCIS then decides whether the worker and the role qualify for H-1B classification. So a 100% certification rate tells you an employer prepares clean, compliant wage attestations, not that every worker ultimately received a visa. We restrict this ranking to employers with at least 500 petitions so the rate reflects a sustained filing practice rather than the statistical noise of a handful of applications.

Methodology

We compute the certification rate as certified petitions divided by total petitions for every employer with 500 or more filings, then rank by that rate (ties broken by volume). The headline ranking and the reference-rate aggregate are computed on exactly the same filtered population. Every figure on this page reflects the current data; none is hardcoded, and the numbers refresh whenever the underlying DOL LCA dataset is updated.

The 500-petition floor is a deliberate editorial choice. Certification rate is a ratio, and ratios are unstable for small denominators: an employer that filed four applications and had one returned shows a 75% rate that says little about its compliance posture. By requiring sustained volume we surface organizations whose certification record reflects a repeatable internal process, immigration counsel, standardized wage surveys, and document controls, rather than the luck of a small sample.

Records with a null certified-petition count are excluded rather than treated as zero, because a missing value is not the same as a denial. Where the source revises a count in a later vintage, the revised figure flows through automatically with no change to this page's code. The methodology page documents the full data-update process, source vintage, and field definitions.

See the methodology page for the source vintage and how the figures are derived.

Highest DOL certification rates (500+ petition sponsors)

Certified share of all H-1B LCA filings, FY2023–FY2026

% certified

What this shows Across the 367 sponsors filing 500+ petitions, the population-wide certification rate is 98.8%; the leaders below clear DOL review almost without exception.

Source U.S. Department of Labor OFLC As of FY2023–FY2026

The ranked leaders

Every row reflects the current data. The reference rate across all 367 high-volume sponsors is 98.8%.

# Employer Certification rate Certified Total filed
1 Microsoft Corporation 100.0% 29,801 29,803
2 Mastech Digital Technologies, Inc 100.0% 1,622 1,622
3 RANDSTAD TECHNOLOGIES, LLC 100.0% 895 895
4 NATSOFT CORPORATION 100.0% 808 808
5 PURE STORAGE, INC 100.0% 654 654
6 VISTA APPLIED SOLUTIONS GROUP INC 100.0% 506 506
7 Vastek Inc 100.0% 505 505
8 Red Hat, Inc 100.0% 504 504
9 Intel Corporation 99.9% 11,254 11,265
10 Deloitte Tax LLP 99.9% 2,752 2,755

Source: U.S. Department of Labor, DOL LCA Disclosure Data. Certification rate is certified petitions divided by total petitions, queried live from the PlainVisa snapshot at request time. U.S. Department of Labor, DOL LCA Disclosure Data. Certification rate is certified petitions divided by total petitions, queried live from the PlainVisa snapshot at request time.

Findings

Does scale cost cleanliness?

The largest H-1B sponsors file tens of thousands of applications, and the chart below shows their certification rates. The notable pattern is that scale and a clean record are not in tension: the biggest filers generally sit at or near the population-wide rate of 98.8%, because high-volume sponsors run mature immigration programs with standardized prevailing-wage sourcing and document review. Where a large sponsor's rate dips, it usually reflects volume in occupations or worksites where prevailing-wage determinations are contested, not a systemic compliance problem.

What a near-perfect rate signals

An employer clearing 99% or more of its filings has effectively industrialized LCA preparation: it pulls prevailing wages from the correct Bureau of Labor Statistics survey for each role and metro, files notice on time, and submits complete attestations. For a prospective H-1B worker, that consistency is a useful signal of how seriously an employer treats the sponsorship process, though it should be read alongside wage level, occupation, and the employer's overall petition volume rather than in isolation.

How to read the leaderboard responsibly

Because the ranking is sorted by rate and broken by volume, two employers can show the same headline percentage while filing very different numbers of applications. A sponsor with a 99.8% rate across 20,000 filings has demonstrated process maturity at a scale that a sponsor with the same rate across 600 filings has not yet been tested at. Read the rate, the certified count, and the total filed columns together: the rate tells you how clean the record is, and the volume tells you how much evidence stands behind it. Workers researching a specific employer should also open that employer's detail page, where the same certification figures appear alongside wage levels, top occupations, and the geographic spread of the company's worksites, the context that turns a single percentage into an informed read on a sponsor's H-1B practice.

Certification rate among the largest-volume sponsors

The 10 highest-volume H-1B filers and how cleanly each clears DOL review

% certified
Source U.S. Department of Labor OFLC As of FY2023–FY2026

What this analysis cannot tell us

Certification is the DOL labor-condition step, not the final USCIS visa decision, so a high certification rate does not mean every petition led to an approved visa. Rates are computed on certified versus total LCA filings and can include withdrawn or returned applications in the denominator. The 500-petition floor excludes smaller sponsors whose rates would be statistically noisy. Certified wages are attested wages, not necessarily wages ultimately paid. Comparisons across employers should account for differences in occupation mix and worksite geography, which affect how often prevailing-wage determinations are contested.

Related data