Home / Companies / Sigma-Aldrich RTC. Inc.

Sigma-Aldrich RTC. Inc. H-1B company data

Employer profile assembled from DOL OFLC LCA rows and USCIS H-1B Employer Data Hub petition summaries. Rows below include aliases, source IDs, filing coverage, petition counts, role coverage, worksite coverage, and wage summary fields when present.

Role rows Wage rows Trends

Employer	LCA filings	Role titles	Worksites	Coverage	USCIS approvals	Top role	Sources	Open
Sigma-Aldrich RTC. Inc. SIGMA ALDRICH RTC INC, SIGMA-ALDRICH RTC INC	10	6	3	FY2016 to FY2025 Latest decision 2025-07-23	10	Scientist, Quality Control 2 filings	dol_oflc_lca, uscis_h1b_employer_data_hub	Profile

Activity summary

LCA filings	10
Certified LCAs	10
Denied LCAs	0
Role titles	6
Worksites	3
Latest decision	2025-07-23
USCIS approvals	10
USCIS denials	0

Aliases and source names

Aliases	Source Names	Sources
SIGMA ALDRICH RTC INC, SIGMA-ALDRICH RTC INC	Sigma-Aldrich RTC. Inc., SIGMA ALDRICH RTC INC	dol_oflc_lca, uscis_h1b_employer_data_hub

Top roles

Title	SOC	LCA filings	Low wage min	High wage max
Scientist, Quality Control	19-1021.00 Biochemists and Biophysicists	2	$67,000	$95,000
SENIOR QUALITY SCIENTIST	19-2031 Chemists	2	$82,320	$95,790
Senior Quality Scientist	19-2031.00 Chemists	2	$95,790	$95,790
CHEMIST 2	19-2031	1	$52,229	$59,000
SR. QUALITY ASSOCIATE	17-2041	1	$52,000	$62,000
SUPERVISOR LS QUALITY	19-2031 CHEMISTS	1	$63,130	$63,130
Supervisor, LS Quality	19-2031.00 Chemists	1	$85,000	$105,000

Top markets

City	State	Postal Code	LCA Count	Role Title Count	Wage Low Min	Wage High Max	First Fiscal Year	Latest Fiscal Year
Laramie	WY	82070	6	3	52,229	95,790	2,016	2,024
Laramie	WY	82072	3	3	52,000	105,000	2,016	2,022
Round Rock	TX	78665	1	1	75,000	95,000	2,025	2,025

Full company payload

Company ID	company:sigma aldrich rtc
Name	Sigma-Aldrich RTC. Inc.
Normalized Name	sigma aldrich rtc
Source Company Ids	company_dol_oflc_lca_sigma_aldrich_rtc_inc, company_uscis_h1b_datahub_sigma_aldrich_rtc_inc_tax_7911
Source Names	Sigma-Aldrich RTC. Inc., SIGMA ALDRICH RTC INC
Aliases	SIGMA ALDRICH RTC INC, SIGMA-ALDRICH RTC INC
Sources	dol_oflc_lca, uscis_h1b_employer_data_hub

Names

{
  "source_names": [
    "Sigma-Aldrich RTC. Inc.",
    "SIGMA ALDRICH RTC INC"
  ],
  "dba_names": [],
  "name_variants": [
    {
      "value": "SIGMA-ALDRICH RTC, INC.",
      "filing_count": 3,
      "first_fiscal_year": 2016,
      "latest_fiscal_year": 2019,
      "source": "dol_oflc_lca"
    },
    {
      "value": "Sigma-Aldrich RTC. Inc.",
      "filing_count": 3,
      "first_fiscal_year": 2021,
      "latest_fiscal_year": 2021,
      "source": "dol_oflc_lca"
    },
    {
      "value": "Sigma-Aldrich RTC, Inc.",
      "filing_count": 2,
      "first_fiscal_year": 2022,
      "latest_fiscal_year": 2025,
      "source": "dol_oflc_lca"
    },
    {
      "value": "Sigma Aldrich RTC Inc.",
      "filing_count": 1,
      "first_fiscal_year": 2024,
      "latest_fiscal_year": 2024,
      "source": "dol_oflc_lca"
    },
    {
      "value": "SIGMA ALDRICH RTC, INC.",
      "filing_count": 1,
      "first_fiscal_year": 2018,
      "latest_fiscal_year": 2018,
      "source": "dol_oflc_lca"
    },
    {
      "value": "SIGMA ALDRICH RTC INC",
      "source": "uscis_h1b_employer_data_hub"
    },
    {
      "value": "SIGMA-ALDRICH RTC INC",
      "source": "uscis_h1b_employer_data_hub"
    }
  ]
}

Identifiers

[
  {
    "identifier_type": "tax_id_last_four",
    "identifier_value": "7911",
    "source": "uscis_h1b_employer_data_hub"
  }
]

LCA Activity

{
  "lca_count": 10,
  "case_count": 10,
  "role_title_count": 6,
  "worksite_count": 3,
  "total_workers": 10,
  "first_fiscal_year": 2016,
  "first_received_date": "2016-03-17",
  "latest_fiscal_year": 2025,
  "latest_decision_date": "2025-07-23",
  "certified_count": 10,
  "denied_count": 0,
  "status_breakdown": [
    {
      "value": "Certified",
      "filing_count": 6,
      "first_fiscal_year": 2021,
      "latest_fiscal_year": 2025,
      "source": "dol_oflc_lca"
    },
    {
      "value": "CERTIFIED",
      "filing_count": 3,
      "first_fiscal_year": 2016,
      "latest_fiscal_year": 2019,
      "source": "dol_oflc_lca"
    },
    {
      "value": "CERTIFIED-WITHDRAWN",
      "filing_count": 1,
      "first_fiscal_year": 2016,
      "latest_fiscal_year": 2016,
      "source": "dol_oflc_lca"
    }
  ],
  "visa_class_breakdown": [
    {
      "value": "H-1B",
      "filing_count": 10,
      "first_fiscal_year": 2016,
      "latest_fiscal_year": 2025,
      "source": "dol_oflc_lca"
    }
  ],
  "full_time_position_breakdown": [
    {
      "value": "Y",
      "filing_count": 8,
      "first_fiscal_year": 2018,
      "latest_fiscal_year": 2025,
      "source": "dol_oflc_lca"
    }
  ]
}

Petition Activity

{
  "initial_approval": 0,
  "initial_denial": 0,
  "continuing_approval": 0,
  "continuing_denial": 0,
  "total_approval": 10,
  "total_denial": 0,
  "fiscal_years": [
    "2012",
    "2013",
    "2014",
    "2016",
    "2018",
    "2019",
    "2021",
    "2022"
  ],
  "year_metrics": [
    {
      "cities": [
        "Laramie"
      ],
      "states": [
        "WY"
      ],
      "fiscal_year": 2012,
      "naics_codes": [
        "54"
      ],
      "postal_codes": [
        "82070"
      ],
      "total_denial": 0,
      "initial_denial": 0,
      "total_approval": 1,
      "initial_approval": 1,
      "continuing_denial": 0,
      "petition_count_id": "petition_count_uscis_h1b_archive_sigma_aldrich_rtc_inc_tax_7911_2012",
      "source_record_ids": [
        "sr_uscis_h1b_datahub_2012_row_025805"
      ],
      "continuing_approval": 0
    },
    {
      "cities": [
        "Laramie"
      ],
      "states": [
        "WY"
      ],
      "fiscal_year": 2013,
      "naics_codes": [
        "32"
      ],
      "postal_codes": [
        "82070"
      ],
      "total_denial": 0,
      "initial_denial": 0,
      "total_approval": 1,
      "initial_approval": 0,
      "continuing_denial": 0,
      "petition_count_id": "petition_count_uscis_h1b_archive_sigma_aldrich_rtc_inc_tax_7911_2013",
      "source_record_ids": [
        "sr_uscis_h1b_datahub_2013_row_024166"
      ],
      "continuing_approval": 1
    },
    {
      "cities": [
        "Laramie"
      ],
      "states": [
        "WY"
      ],
      "fiscal_year": 2014,
      "naics_codes": [
        "32"
      ],
      "postal_codes": [
        "82070"
      ],
      "total_denial": 0,
      "initial_denial": 0,
      "total_approval": 1,
      "initial_approval": 0,
      "continuing_denial": 0,
      "petition_count_id": "petition_count_uscis_h1b_archive_sigma_aldrich_rtc_inc_tax_7911_2014",
      "source_record_ids": [
        "sr_uscis_h1b_datahub_2014_row_024098"
      ],
      "continuing_approval": 1
    },
    {
      "cities": [
        "Laramie"
      ],
      "states": [
        "WY"
      ],
      "fiscal_year": 2016,
      "naics_codes": [
        "32"
      ],
      "postal_codes": [
        "82070"
      ],
      "total_denial": 0,
      "initial_denial": 0,
      "total_approval": 2,
      "initial_approval": 0,
      "continuing_denial": 0,
      "petition_count_id": "petition_count_uscis_h1b_archive_sigma_aldrich_rtc_inc_tax_7911_2016",
      "source_record_ids": [
        "sr_uscis_h1b_datahub_2016_row_020082"
      ],
      "continuing_approval": 2
    },
    {
      "cities": [
        "Burlington"
      ],
      "states": [
        "MA"
      ],
      "fiscal_year": 2018,
      "naics_codes": [
        "32"
      ],
      "postal_codes": [
        "01803"
      ],
      "total_denial": 0,
      "initial_denial": 0,
      "total_approval": 1,
      "initial_approval": 1,
      "continuing_denial": 0,
      "petition_count_id": "petition_count_uscis_h1b_archive_sigma_aldrich_rtc_inc_tax_7911_2018",
      "source_record_ids": [
        "sr_uscis_h1b_datahub_2018_row_019289"
      ],
      "continuing_approval": 0
    },
    {
      "cities": [
        "Burlington"
      ],
      "states": [
        "MA"
      ],
      "fiscal_year": 2019,
      "naics_codes": [
        "32"
      ],
      "postal_codes": [
        "01803"
      ],
      "total_denial": 0,
      "initial_denial": 0,
      "total_approval": 1,
      "initial_approval": 0,
      "continuing_denial": 0,
      "petition_count_id": "petition_count_uscis_h1b_archive_sigma_aldrich_rtc_inc_tax_7911_2019",
      "source_record_ids": [
        "sr_uscis_h1b_datahub_2019_row_019111"
      ],
      "continuing_approval": 1
    },
    {
      "cities": [
        "Burlington"
      ],
      "states": [
        "MA"
      ],
      "fiscal_year": 2021,
      "naics_codes": [
        "99"
      ],
      "postal_codes": [
        "01803",
        "1803"
      ],
      "total_denial": 0,
      "initial_denial": 0,
      "total_approval": 2,
      "initial_approval": 0,
      "continuing_denial": 0,
      "petition_count_id": "petition_count_uscis_h1b_archive_sigma_aldrich_rtc_inc_tax_7911_2021",
      "source_record_ids": [
        "sr_uscis_h1b_datahub_2021_row_047349",
        "sr_uscis_h1b_datahub_2021_row_047350"
      ],
      "continuing_approval": 2
    },
    {
      "cities": [
        "Burlington"
      ],
      "states": [
        "MA"
      ],
      "fiscal_year": 2022,
      "naics_codes": [
        "32"
      ],
      "postal_codes": [
        "01803"
      ],
      "total_denial": 0,
      "initial_denial": 0,
      "total_approval": 1,
      "initial_approval": 0,
      "continuing_denial": 0,
      "petition_count_id": "petition_count_uscis_h1b_archive_sigma_aldrich_rtc_inc_tax_7911_2022",
      "source_record_ids": [
        "sr_uscis_h1b_datahub_2022_row_047035"
      ],
      "continuing_approval": 1
    }
  ]
}

Addresses

{
  "office_addresses": [
    {
      "address_kind": "office",
      "raw_address": "BURLINGTON MA 01803",
      "city": "Burlington",
      "state": "MA",
      "postal_code": "01803",
      "filing_count": 4,
      "case_count": 4,
      "first_fiscal_year": 2018,
      "latest_fiscal_year": 2025,
      "latest_decision_date": "2025-07-23",
      "source_ids": [
        "dol_oflc_lca"
      ]
    },
    {
      "address_kind": "office",
      "raw_address": "BURLINGTON MA 1803",
      "city": "Burlington",
      "state": "MA",
      "postal_code": "1803",
      "filing_count": 4,
      "case_count": 4,
      "first_fiscal_year": 2019,
      "latest_fiscal_year": 2022,
      "latest_decision_date": "2022-01-18",
      "source_ids": [
        "dol_oflc_lca"
      ]
    },
    {
      "address_kind": "office",
      "raw_address": "LARAMIE WY 82070",
      "city": "Laramie",
      "state": "WY",
      "postal_code": "82070",
      "filing_count": 1,
      "case_count": 1,
      "first_fiscal_year": 2016,
      "latest_fiscal_year": 2016,
      "latest_decision_date": "2016-09-14",
      "source_ids": [
        "dol_oflc_lca"
      ]
    },
    {
      "address_kind": "office",
      "raw_address": "LARAMIE WY 82072",
      "city": "Laramie",
      "state": "WY",
      "postal_code": "82072",
      "filing_count": 1,
      "case_count": 1,
      "first_fiscal_year": 2016,
      "latest_fiscal_year": 2016,
      "latest_decision_date": "2016-06-03",
      "source_ids": [
        "dol_oflc_lca"
      ]
    }
  ],
  "worksite_addresses": [
    {
      "address_kind": "worksite",
      "raw_address": "ROUND ROCK TX 78665",
      "city": "Round Rock",
      "state": "TX",
      "postal_code": "78665",
      "filing_count": 1,
      "case_count": 1,
      "first_fiscal_year": 2025,
      "latest_fiscal_year": 2025,
      "latest_decision_date": "2025-07-23",
      "source_ids": [
        "dol_oflc_lca"
      ]
    },
    {
      "address_kind": "worksite",
      "raw_address": "LARAMIE WY 82070",
      "city": "Laramie",
      "county": "Albany",
      "state": "WY",
      "postal_code": "82070",
      "filing_count": 6,
      "case_count": 6,
      "first_fiscal_year": 2016,
      "latest_fiscal_year": 2024,
      "latest_decision_date": "2024-04-17",
      "source_ids": [
        "dol_oflc_lca"
      ]
    },
    {
      "address_kind": "worksite",
      "raw_address": "LARAMIE WY 82072",
      "city": "Laramie",
      "county": "Albany",
      "state": "WY",
      "postal_code": "82072",
      "filing_count": 3,
      "case_count": 3,
      "first_fiscal_year": 2016,
      "latest_fiscal_year": 2022,
      "latest_decision_date": "2022-01-18",
      "source_ids": [
        "dol_oflc_lca"
      ]
    }
  ],
  "summary": {
    "office_address_count": 4,
    "worksite_address_count": 3,
    "has_street_address_evidence": true,
    "caveat": "LCA employer/worksite addresses are capped filing evidence scoped to matched source company names and should not be treated as verified headquarters without external validation."
  }
}

Geography

{
  "states": [
    "WY",
    "TX",
    "MA"
  ],
  "cities": [
    "Laramie",
    "Round Rock",
    "Burlington"
  ],
  "postal_codes": [
    "82070",
    "82072",
    "78665",
    "01803",
    "1803"
  ],
  "top_markets": [
    {
      "city": "Laramie",
      "state": "WY",
      "postal_code": "82070",
      "lca_count": 6,
      "role_title_count": 3,
      "wage_low_min": 52229,
      "wage_high_max": 95790,
      "first_fiscal_year": 2016,
      "latest_fiscal_year": 2024
    },
    {
      "city": "Laramie",
      "state": "WY",
      "postal_code": "82072",
      "lca_count": 3,
      "role_title_count": 3,
      "wage_low_min": 52000,
      "wage_high_max": 105000,
      "first_fiscal_year": 2016,
      "latest_fiscal_year": 2022
    },
    {
      "city": "Round Rock",
      "state": "TX",
      "postal_code": "78665",
      "lca_count": 1,
      "role_title_count": 1,
      "wage_low_min": 75000,
      "wage_high_max": 95000,
      "first_fiscal_year": 2025,
      "latest_fiscal_year": 2025
    }
  ]
}

Industry

{
  "naics_codes": [
    "54171",
    "32",
    "54",
    "99"
  ],
  "naics_breakdown": [
    {
      "value": "54171",
      "filing_count": 5,
      "first_fiscal_year": 2021,
      "latest_fiscal_year": 2025,
      "source": "dol_oflc_lca"
    },
    {
      "value": "325998",
      "filing_count": 3,
      "first_fiscal_year": 2018,
      "latest_fiscal_year": 2022,
      "source": "dol_oflc_lca"
    }
  ]
}

Wage Summary

{
  "annualized_low_min": 52000,
  "annualized_high_max": 105000,
  "annualized_low_avg": 76404.9
}

Trend

[
  {
    "fiscal_year": 2016,
    "quarter": "Q2",
    "lca_count": 2,
    "case_count": 2,
    "role_title_count": 2,
    "worksite_count": 2,
    "wage_low_min": 52000,
    "wage_high_max": 62000,
    "wage_low_avg": 52114.5
  },
  {
    "fiscal_year": 2018,
    "quarter": "Q2",
    "lca_count": 1,
    "case_count": 1,
    "role_title_count": 1,
    "worksite_count": 1,
    "wage_low_min": 82320,
    "wage_high_max": 0,
    "wage_low_avg": 82320
  },
  {
    "fiscal_year": 2019,
    "quarter": "Q2",
    "lca_count": 1,
    "case_count": 1,
    "role_title_count": 1,
    "worksite_count": 1,
    "wage_low_min": 63130,
    "wage_high_max": 63130,
    "wage_low_avg": 63130
  },
  {
    "fiscal_year": 2021,
    "quarter": "Q1",
    "lca_count": 1,
    "case_count": 1,
    "role_title_count": 1,
    "worksite_count": 1,
    "wage_low_min": 95790,
    "wage_high_max": 95790,
    "wage_low_avg": 95790
  },
  {
    "fiscal_year": 2021,
    "quarter": "Q2",
    "lca_count": 1,
    "case_count": 1,
    "role_title_count": 1,
    "worksite_count": 1,
    "wage_low_min": 95790,
    "wage_high_max": 95790,
    "wage_low_avg": 95790
  },
  {
    "fiscal_year": 2021,
    "quarter": "Q3",
    "lca_count": 1,
    "case_count": 1,
    "role_title_count": 1,
    "worksite_count": 1,
    "wage_low_min": 95790,
    "wage_high_max": 95790,
    "wage_low_avg": 95790
  },
  {
    "fiscal_year": 2022,
    "quarter": "Q2",
    "lca_count": 1,
    "case_count": 1,
    "role_title_count": 1,
    "worksite_count": 1,
    "wage_low_min": 85000,
    "wage_high_max": 105000,
    "wage_low_avg": 85000
  },
  {
    "fiscal_year": 2024,
    "quarter": "Q3",
    "lca_count": 1,
    "case_count": 1,
    "role_title_count": 1,
    "worksite_count": 1,
    "wage_low_min": 67000,
    "wage_high_max": 87000,
    "wage_low_avg": 67000
  },
  {
    "fiscal_year": 2025,
    "quarter": "Q4",
    "lca_count": 1,
    "case_count": 1,
    "role_title_count": 1,
    "worksite_count": 1,
    "wage_low_min": 75000,
    "wage_high_max": 95000,
    "wage_low_avg": 75000
  }
]

Links

{
  "roles": "/v1/roles?company=Sigma-Aldrich%20RTC.%20Inc.",
  "wages": "/v1/wages?company=Sigma-Aldrich%20RTC.%20Inc.",
  "trends": "/v1/trends?company=Sigma-Aldrich%20RTC.%20Inc."
}

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