{
    "code": "8734",
    "title": "Testing Laboratories",
    "sic_manual": "OSHA SIC Manual",
    "level": "Industry",
    "major_group_code": "87",
    "parent_code": "873",
    "parent_title": "Research, Development, and Testing Services",
    "plain_english_definition": "",
    "summary_plain": "",
    "official_definition": "Establishments primarily engaged in providing testing services.",
    "official_source": "https://www.osha.gov/sic-manual/8734",
    "classification_note": "",
    "included_activities": [
        "Assaying services",
        "Automobile proving and testing grounds",
        "Calibration and certification (testing)",
        "Dosimetry, radiation",
        "Film budge service (radiation detection)"
    ],
    "excluded_activities": [
        {
            "label": "Medical Laboratories",
            "code": "8071",
            "title": "Medical Laboratories",
            "url": "https://siccode.com/sic-code/8071/medical-laboratories"
        }
    ],
    "confused_codes": [],
    "official_siblings": [
        {
            "code": "8731",
            "title": "Commercial Physical and Biological Research",
            "url": "https://siccode.com/sic-code/8731/commercial-physical-biological-research",
            "label": "Industry"
        },
        {
            "code": "8732",
            "title": "Commercial Economic, Sociological, and Educational Research",
            "url": "https://siccode.com/sic-code/8732/commercial-economic-sociological-educational-research",
            "label": "Industry"
        },
        {
            "code": "8733",
            "title": "Noncommercial Research Organizations",
            "url": "https://siccode.com/sic-code/8733/noncommercial-research-organizations",
            "label": "Industry"
        },
        {
            "code": "8734",
            "title": "Testing Laboratories",
            "url": "https://siccode.com/sic-code/8734/testing-laboratories",
            "label": "Industry"
        }
    ],
    "official_children": [],
    "related_naics_codes": [
        {
            "code": "541380",
            "title": "Testing Laboratories",
            "url": "https://siccode.com/naics-code/541380/testing-laboratories"
        },
        {
            "code": "541940",
            "title": "Veterinary Services ",
            "url": "https://siccode.com/naics-code/541940/veterinary-services"
        }
    ],
    "example_companies": [
        {
            "name": "21Ct Inc",
            "url": "https://siccode.com/business/21ct-inc",
            "city": "Austin",
            "state": "TX",
            "reviewed": false
        },
        {
            "name": "Indiana Packers",
            "url": "https://siccode.com/business/indiana-packers",
            "city": "Delphi",
            "state": "IN",
            "reviewed": false
        },
        {
            "name": "M And O Installation Co",
            "url": "https://siccode.com/business/m-and-o-installation-co",
            "city": "Cordova",
            "state": "IL",
            "reviewed": false
        },
        {
            "name": "Miracles Can Happen",
            "url": "https://siccode.com/business/miracles-can-happen",
            "city": "Brooklyn",
            "state": "NY",
            "reviewed": false
        },
        {
            "name": "Mason Electric Co",
            "url": "https://siccode.com/business/mason-electric-co",
            "city": "Sylmar",
            "state": "CA",
            "reviewed": false
        },
        {
            "name": "Sorenson Genomics And Forensic",
            "url": "https://siccode.com/business/sorenson-genomics-and-forensic",
            "city": "Salt Lake City",
            "state": "UT",
            "reviewed": false
        },
        {
            "name": "Geochemical and Environmental Research Group",
            "url": "https://siccode.com/business/geochemical-and-environmental-research-group",
            "city": "College Station",
            "state": "TX",
            "reviewed": false
        },
        {
            "name": "Sound Management",
            "url": "https://siccode.com/business/sound-management",
            "city": "Las Vegas",
            "state": "NV",
            "reviewed": false
        },
        {
            "name": "St Clair Hospital Lab Services",
            "url": "https://siccode.com/business/st-clair-hospital-lab-services-1",
            "city": "Bridgeville",
            "state": "PA",
            "reviewed": false
        },
        {
            "name": "Duncan Co. Seymour",
            "url": "https://siccode.com/business/duncan-co-seymour",
            "city": "Santa Barbara",
            "state": "CA",
            "reviewed": false
        },
        {
            "name": "Alta Analytical Laboratory",
            "url": "https://siccode.com/business/alta-analytical-laboratory",
            "city": "San Diego",
            "state": "CA",
            "reviewed": false
        }
    ],
    "company_count": 5095,
    "email_contact_count": 2395,
    "phone_count": 3994,
    "website_count": 4263,
    "database_as_of": "Nov 13, 2026",
    "count_type": "commercial",
    "count_disclaimer": "These are SICCODE.com commercial database counts, not official government establishment totals. Website-Reviewed & Enriched is a separate review of company websites for products, services, markets, and fit.",
    "canonical_url": "https://siccode.com/sic-code/8734/testing-laboratories",
    "json_url": "https://siccode.com/sic-code/8734.json",
    "reviewed_by": "Industry Classification Review Team",
    "last_updated": "October 2026"
}