Home / Companies / Mammoth Biosciences, Inc.

Mammoth Biosciences, 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
Mammoth Biosciences, Inc. MAMMOTH BIOSCIENCES INC	27	14	4	FY2019 to FY2025 Latest decision 2025-09-25	13	Associate Scientist 3 filings	dol_oflc_lca, uscis_h1b_employer_data_hub	Profile

Activity summary

LCA filings	27
Certified LCAs	27
Denied LCAs	0
Role titles	14
Worksites	4
Latest decision	2025-09-25
USCIS approvals	13
USCIS denials	0

Aliases and source names

Aliases	Source Names	Sources
MAMMOTH BIOSCIENCES INC	Mammoth Biosciences, Inc., MAMMOTH BIOSCIENCES INC	dol_oflc_lca, uscis_h1b_employer_data_hub

Top roles

Title	SOC	LCA filings	Low wage min	High wage max
Associate Scientist	19-2031.00 Chemists	3	$104,499	$107,500
RESEARCH ASSOCIATE	17-2031 BIOMEDICAL ENGINEERS	2	$75,920	$85,000
Scientist	17-2031.00 Biomedical Engineers	2	$118,997	$135,000
Scientist	19-1029.02 Molecular and Cellular Biologists	2	$108,202	$125,000
SCIENTIST II	19-1029.02 Molecular and Cellular Biologists	2	$127,150	$165,000
Associate Scientist	19-1029.02 Molecular and Cellular Biologists	1	$105,000	$135,000
Associate Scientist	19-2031 Chemists	1	$104,499	$107,500
Data Scientist	19-1029.01 Bioinformatics Scientists	1	$87,610	$145,000
Research Associate II	19-1029.02 Molecular and Cellular Biologists	1	$77,000	$117,000
Scientist I	17-2031.00 Biomedical Engineers	1	$125,000	$129,950

Top markets

City	State	Postal Code	LCA Count	Role Title Count	Wage Low Min	Wage High Max	First Fiscal Year	Latest Fiscal Year
Brisbane	CA	94005	20	13	77,000	190,000	2,021	2,025
South San Francisco	CA	94080	5	2	83,866	107,500	2,019	2,023
Brisbane	CA	94080	1	1	108,202	108,202	2,021	2,021
San Francisco	CA	94107	1	1	75,920	85,000	2,019	2,019

Full company payload

Company ID	company:mammoth biosciences
Name	Mammoth Biosciences, Inc.
Normalized Name	mammoth biosciences
Source Company Ids	company_dol_oflc_lca_mammoth_biosciences_inc, company_uscis_h1b_datahub_mammoth_biosciences_inc_tax_9487
Source Names	Mammoth Biosciences, Inc., MAMMOTH BIOSCIENCES INC
Aliases	MAMMOTH BIOSCIENCES INC
Sources	dol_oflc_lca, uscis_h1b_employer_data_hub

Names

{
  "source_names": [
    "Mammoth Biosciences, Inc.",
    "MAMMOTH BIOSCIENCES INC"
  ],
  "dba_names": [],
  "name_variants": [
    {
      "value": "Mammoth Biosciences Inc.",
      "filing_count": 14,
      "first_fiscal_year": 2022,
      "latest_fiscal_year": 2025,
      "source": "dol_oflc_lca"
    },
    {
      "value": "MAMMOTH BIOSCIENCES, INC.",
      "filing_count": 10,
      "first_fiscal_year": 2019,
      "latest_fiscal_year": 2023,
      "source": "dol_oflc_lca"
    },
    {
      "value": "Mammoth Biosciences, Inc.",
      "filing_count": 3,
      "first_fiscal_year": 2022,
      "latest_fiscal_year": 2025,
      "source": "dol_oflc_lca"
    },
    {
      "value": "MAMMOTH BIOSCIENCES INC",
      "source": "uscis_h1b_employer_data_hub"
    }
  ]
}

Identifiers

[
  {
    "identifier_type": "tax_id_last_four",
    "identifier_value": "9487",
    "source": "uscis_h1b_employer_data_hub"
  }
]

LCA Activity

{
  "lca_count": 27,
  "case_count": 27,
  "role_title_count": 14,
  "worksite_count": 4,
  "total_workers": 27,
  "first_fiscal_year": 2019,
  "first_received_date": "2019-03-11",
  "latest_fiscal_year": 2025,
  "latest_decision_date": "2025-09-25",
  "certified_count": 27,
  "denied_count": 0,
  "status_breakdown": [
    {
      "value": "Certified",
      "filing_count": 24,
      "first_fiscal_year": 2021,
      "latest_fiscal_year": 2025,
      "source": "dol_oflc_lca"
    },
    {
      "value": "CERTIFIED",
      "filing_count": 2,
      "first_fiscal_year": 2019,
      "latest_fiscal_year": 2019,
      "source": "dol_oflc_lca"
    },
    {
      "value": "Certified - Withdrawn",
      "filing_count": 1,
      "first_fiscal_year": 2023,
      "latest_fiscal_year": 2023,
      "source": "dol_oflc_lca"
    }
  ],
  "visa_class_breakdown": [
    {
      "value": "H-1B",
      "filing_count": 27,
      "first_fiscal_year": 2019,
      "latest_fiscal_year": 2025,
      "source": "dol_oflc_lca"
    }
  ],
  "full_time_position_breakdown": [
    {
      "value": "Y",
      "filing_count": 27,
      "first_fiscal_year": 2019,
      "latest_fiscal_year": 2025,
      "source": "dol_oflc_lca"
    }
  ]
}

Petition Activity

{
  "initial_approval": 0,
  "initial_denial": 0,
  "continuing_approval": 0,
  "continuing_denial": 0,
  "total_approval": 13,
  "total_denial": 0,
  "fiscal_years": [
    "2019",
    "2020",
    "2021",
    "2022",
    "2023"
  ],
  "year_metrics": [
    {
      "cities": [
        "San Francisco"
      ],
      "states": [
        "CA"
      ],
      "fiscal_year": 2019,
      "naics_codes": [
        "54"
      ],
      "postal_codes": [
        "94107"
      ],
      "total_denial": 0,
      "initial_denial": 0,
      "total_approval": 1,
      "initial_approval": 1,
      "continuing_denial": 0,
      "petition_count_id": "petition_count_uscis_h1b_archive_mammoth_biosciences_inc_tax_9487_2019",
      "source_record_ids": [
        "sr_uscis_h1b_datahub_2019_row_051734"
      ],
      "continuing_approval": 0
    },
    {
      "cities": [
        "South San Francisco"
      ],
      "states": [
        "CA"
      ],
      "fiscal_year": 2020,
      "naics_codes": [
        "54"
      ],
      "postal_codes": [
        "94080"
      ],
      "total_denial": 0,
      "initial_denial": 0,
      "total_approval": 1,
      "initial_approval": 0,
      "continuing_denial": 0,
      "petition_count_id": "petition_count_uscis_h1b_archive_mammoth_biosciences_inc_tax_9487_2020",
      "source_record_ids": [
        "sr_uscis_h1b_datahub_2020_row_029833"
      ],
      "continuing_approval": 1
    },
    {
      "cities": [
        "Brisbane",
        "San Francisco",
        "South San Francisco"
      ],
      "states": [
        "CA"
      ],
      "fiscal_year": 2021,
      "naics_codes": [
        "54",
        "99"
      ],
      "postal_codes": [
        "94005",
        "94080",
        "94107"
      ],
      "total_denial": 0,
      "initial_denial": 0,
      "total_approval": 6,
      "initial_approval": 0,
      "continuing_denial": 0,
      "petition_count_id": "petition_count_uscis_h1b_archive_mammoth_biosciences_inc_tax_9487_2021",
      "source_record_ids": [
        "sr_uscis_h1b_datahub_2021_row_032267",
        "sr_uscis_h1b_datahub_2021_row_032268",
        "sr_uscis_h1b_datahub_2021_row_032269",
        "sr_uscis_h1b_datahub_2021_row_032270",
        "sr_uscis_h1b_datahub_2021_row_032271"
      ],
      "continuing_approval": 6
    },
    {
      "cities": [
        "Brisbane"
      ],
      "states": [
        "CA"
      ],
      "fiscal_year": 2022,
      "naics_codes": [
        "33",
        "54",
        "99"
      ],
      "postal_codes": [
        "94005"
      ],
      "total_denial": 0,
      "initial_denial": 0,
      "total_approval": 4,
      "initial_approval": 0,
      "continuing_denial": 0,
      "petition_count_id": "petition_count_uscis_h1b_archive_mammoth_biosciences_inc_tax_9487_2022",
      "source_record_ids": [
        "sr_uscis_h1b_datahub_2022_row_032249",
        "sr_uscis_h1b_datahub_2022_row_032250",
        "sr_uscis_h1b_datahub_2022_row_032251"
      ],
      "continuing_approval": 4
    },
    {
      "cities": [
        "Brisbane"
      ],
      "states": [
        "CA"
      ],
      "fiscal_year": 2023,
      "naics_codes": [
        "54"
      ],
      "postal_codes": [
        "94005"
      ],
      "total_denial": 0,
      "initial_denial": 0,
      "total_approval": 1,
      "initial_approval": 0,
      "continuing_denial": 0,
      "petition_count_id": "petition_count_uscis_h1b_archive_mammoth_biosciences_inc_tax_9487_2023",
      "source_record_ids": [
        "sr_uscis_h1b_datahub_2023_row_017781"
      ],
      "continuing_approval": 1
    }
  ]
}

Addresses

{
  "office_addresses": [
    {
      "address_kind": "office",
      "raw_address": "BRISBANE CA 94005",
      "city": "Brisbane",
      "state": "CA",
      "postal_code": "94005",
      "filing_count": 19,
      "case_count": 19,
      "first_fiscal_year": 2021,
      "latest_fiscal_year": 2025,
      "latest_decision_date": "2025-09-25",
      "source_ids": [
        "dol_oflc_lca"
      ]
    },
    {
      "address_kind": "office",
      "raw_address": "SOUTH SAN FRANCISCO CA 94080",
      "city": "South San Francisco",
      "state": "CA",
      "postal_code": "94080",
      "filing_count": 5,
      "case_count": 5,
      "first_fiscal_year": 2019,
      "latest_fiscal_year": 2023,
      "latest_decision_date": "2023-05-03",
      "source_ids": [
        "dol_oflc_lca"
      ]
    },
    {
      "address_kind": "office",
      "raw_address": "BRISBANE CA 94080",
      "city": "Brisbane",
      "state": "CA",
      "postal_code": "94080",
      "filing_count": 2,
      "case_count": 2,
      "first_fiscal_year": 2021,
      "latest_fiscal_year": 2021,
      "latest_decision_date": "2021-02-12",
      "source_ids": [
        "dol_oflc_lca"
      ]
    },
    {
      "address_kind": "office",
      "raw_address": "SAN FRANCISCO CA 94107",
      "city": "San Francisco",
      "state": "CA",
      "postal_code": "94107",
      "filing_count": 1,
      "case_count": 1,
      "first_fiscal_year": 2019,
      "latest_fiscal_year": 2019,
      "latest_decision_date": "2019-03-15",
      "source_ids": [
        "dol_oflc_lca"
      ]
    }
  ],
  "worksite_addresses": [
    {
      "address_kind": "worksite",
      "raw_address": "BRISBANE CA 94005",
      "city": "Brisbane",
      "county": "San Mateo",
      "state": "CA",
      "postal_code": "94005",
      "filing_count": 19,
      "case_count": 19,
      "first_fiscal_year": 2021,
      "latest_fiscal_year": 2025,
      "latest_decision_date": "2025-03-10",
      "source_ids": [
        "dol_oflc_lca"
      ]
    },
    {
      "address_kind": "worksite",
      "raw_address": "BRISBANE CA 94005",
      "city": "Brisbane",
      "state": "CA",
      "postal_code": "94005",
      "filing_count": 1,
      "case_count": 1,
      "first_fiscal_year": 2025,
      "latest_fiscal_year": 2025,
      "latest_decision_date": "2025-09-25",
      "source_ids": [
        "dol_oflc_lca"
      ]
    },
    {
      "address_kind": "worksite",
      "raw_address": "SOUTH SAN FRANCISCO CA 94080",
      "city": "South San Francisco",
      "county": "San Mateo",
      "state": "CA",
      "postal_code": "94080",
      "filing_count": 5,
      "case_count": 5,
      "first_fiscal_year": 2019,
      "latest_fiscal_year": 2023,
      "latest_decision_date": "2023-05-03",
      "source_ids": [
        "dol_oflc_lca"
      ]
    },
    {
      "address_kind": "worksite",
      "raw_address": "BRISBANE CA 94080",
      "city": "Brisbane",
      "county": "San Mateo",
      "state": "CA",
      "postal_code": "94080",
      "filing_count": 1,
      "case_count": 1,
      "first_fiscal_year": 2021,
      "latest_fiscal_year": 2021,
      "latest_decision_date": "2021-05-18",
      "source_ids": [
        "dol_oflc_lca"
      ]
    },
    {
      "address_kind": "worksite",
      "raw_address": "SAN FRANCISCO CA 94107",
      "city": "San Francisco",
      "county": "San Francisco",
      "state": "CA",
      "postal_code": "94107",
      "filing_count": 1,
      "case_count": 1,
      "first_fiscal_year": 2019,
      "latest_fiscal_year": 2019,
      "latest_decision_date": "2019-03-15",
      "source_ids": [
        "dol_oflc_lca"
      ]
    }
  ],
  "summary": {
    "office_address_count": 4,
    "worksite_address_count": 5,
    "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": [
    "CA"
  ],
  "cities": [
    "Brisbane",
    "South San Francisco",
    "San Francisco"
  ],
  "postal_codes": [
    "94005",
    "94080",
    "94107"
  ],
  "top_markets": [
    {
      "city": "Brisbane",
      "state": "CA",
      "postal_code": "94005",
      "lca_count": 20,
      "role_title_count": 13,
      "wage_low_min": 77000,
      "wage_high_max": 190000,
      "first_fiscal_year": 2021,
      "latest_fiscal_year": 2025
    },
    {
      "city": "South San Francisco",
      "state": "CA",
      "postal_code": "94080",
      "lca_count": 5,
      "role_title_count": 2,
      "wage_low_min": 83866,
      "wage_high_max": 107500,
      "first_fiscal_year": 2019,
      "latest_fiscal_year": 2023
    },
    {
      "city": "Brisbane",
      "state": "CA",
      "postal_code": "94080",
      "lca_count": 1,
      "role_title_count": 1,
      "wage_low_min": 108202,
      "wage_high_max": 108202,
      "first_fiscal_year": 2021,
      "latest_fiscal_year": 2021
    },
    {
      "city": "San Francisco",
      "state": "CA",
      "postal_code": "94107",
      "lca_count": 1,
      "role_title_count": 1,
      "wage_low_min": 75920,
      "wage_high_max": 85000,
      "first_fiscal_year": 2019,
      "latest_fiscal_year": 2019
    }
  ]
}

Industry

{
  "naics_codes": [
    "541714",
    "33",
    "54",
    "99"
  ],
  "naics_breakdown": [
    {
      "value": "541714",
      "filing_count": 21,
      "first_fiscal_year": 2021,
      "latest_fiscal_year": 2025,
      "source": "dol_oflc_lca"
    },
    {
      "value": "334516",
      "filing_count": 4,
      "first_fiscal_year": 2022,
      "latest_fiscal_year": 2024,
      "source": "dol_oflc_lca"
    },
    {
      "value": "541711",
      "filing_count": 2,
      "first_fiscal_year": 2019,
      "latest_fiscal_year": 2019,
      "source": "dol_oflc_lca"
    }
  ]
}

Wage Summary

{
  "annualized_low_min": 75920,
  "annualized_high_max": 190000,
  "annualized_low_avg": 115548.740740741
}

Trend

[
  {
    "fiscal_year": 2019,
    "quarter": "Q2",
    "lca_count": 2,
    "case_count": 2,
    "role_title_count": 1,
    "worksite_count": 2,
    "wage_low_min": 75920,
    "wage_high_max": 85000,
    "wage_low_avg": 79893
  },
  {
    "fiscal_year": 2021,
    "quarter": "Q1",
    "lca_count": 1,
    "case_count": 1,
    "role_title_count": 1,
    "worksite_count": 1,
    "wage_low_min": 104499,
    "wage_high_max": 107500,
    "wage_low_avg": 104499
  },
  {
    "fiscal_year": 2021,
    "quarter": "Q2",
    "lca_count": 2,
    "case_count": 2,
    "role_title_count": 2,
    "worksite_count": 2,
    "wage_low_min": 104499,
    "wage_high_max": 135000,
    "wage_low_avg": 111748
  },
  {
    "fiscal_year": 2021,
    "quarter": "Q3",
    "lca_count": 4,
    "case_count": 4,
    "role_title_count": 3,
    "worksite_count": 3,
    "wage_low_min": 87610,
    "wage_high_max": 145000,
    "wage_low_avg": 104827
  },
  {
    "fiscal_year": 2022,
    "quarter": "Q1",
    "lca_count": 1,
    "case_count": 1,
    "role_title_count": 1,
    "worksite_count": 1,
    "wage_low_min": 125000,
    "wage_high_max": 125000,
    "wage_low_avg": 125000
  },
  {
    "fiscal_year": 2022,
    "quarter": "Q3",
    "lca_count": 1,
    "case_count": 1,
    "role_title_count": 1,
    "worksite_count": 1,
    "wage_low_min": 125000,
    "wage_high_max": 129950,
    "wage_low_avg": 125000
  },
  {
    "fiscal_year": 2022,
    "quarter": "Q4",
    "lca_count": 2,
    "case_count": 2,
    "role_title_count": 2,
    "worksite_count": 1,
    "wage_low_min": 86424,
    "wage_high_max": 160000,
    "wage_low_avg": 118212
  },
  {
    "fiscal_year": 2023,
    "quarter": "Q3",
    "lca_count": 3,
    "case_count": 3,
    "role_title_count": 3,
    "worksite_count": 2,
    "wage_low_min": 104499,
    "wage_high_max": 150000,
    "wage_low_avg": 127551
  },
  {
    "fiscal_year": 2024,
    "quarter": "Q1",
    "lca_count": 1,
    "case_count": 1,
    "role_title_count": 1,
    "worksite_count": 1,
    "wage_low_min": 154500,
    "wage_high_max": 154500,
    "wage_low_avg": 154500
  },
  {
    "fiscal_year": 2024,
    "quarter": "Q3",
    "lca_count": 5,
    "case_count": 5,
    "role_title_count": 5,
    "worksite_count": 1,
    "wage_low_min": 77000,
    "wage_high_max": 152506,
    "wage_low_avg": 105830
  },
  {
    "fiscal_year": 2024,
    "quarter": "Q4",
    "lca_count": 1,
    "case_count": 1,
    "role_title_count": 1,
    "worksite_count": 1,
    "wage_low_min": 115000,
    "wage_high_max": 165000,
    "wage_low_avg": 115000
  },
  {
    "fiscal_year": 2025,
    "quarter": "Q1",
    "lca_count": 2,
    "case_count": 2,
    "role_title_count": 1,
    "worksite_count": 1,
    "wage_low_min": 140000,
    "wage_high_max": 190000,
    "wage_low_avg": 140000
  },
  {
    "fiscal_year": 2025,
    "quarter": "Q2",
    "lca_count": 1,
    "case_count": 1,
    "role_title_count": 1,
    "worksite_count": 1,
    "wage_low_min": 120000,
    "wage_high_max": 170000,
    "wage_low_avg": 120000
  },
  {
    "fiscal_year": 2025,
    "quarter": "Q4",
    "lca_count": 1,
    "case_count": 1,
    "role_title_count": 1,
    "worksite_count": 1,
    "wage_low_min": 145000,
    "wage_high_max": 165000,
    "wage_low_avg": 145000
  }
]

Links

{
  "roles": "/v1/roles?company=Mammoth%20Biosciences%2C%20Inc.",
  "wages": "/v1/wages?company=Mammoth%20Biosciences%2C%20Inc.",
  "trends": "/v1/trends?company=Mammoth%20Biosciences%2C%20Inc."
}

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