Professional Services Authority Providers

The Professional Services Authority providers index presents contractor and trade business records organized by specialization, licensing type, and geographic service area across the United States. Each provider entry is drawn from the broader Professional Services Authority provider network purpose and scope, which defines the eligibility rules and data standards that govern which businesses appear and how their information is structured. Understanding how to read and apply these providers is essential for anyone comparing trade contractors, verifying credentials, or assessing service coverage in a specific region. The records span more than 30 distinct trade categories, from licensed electrical and plumbing contractors to HVAC, excavation, and specialty finishing trades.

How to use providers alongside other resources

Providers function as a structured starting point, not a standalone decision tool. A contractor record within the index identifies the trade category, service geography, licensing status, and business profile — but that information gains full utility only when cross-referenced against supporting resources. The how to use this Professional Services Authority resource page details the recommended workflow, including how to match a trade specialization to the correct licensing authority in a given state.

Credential verification is a distinct step from record review. A provider may confirm that a business holds a license number on file, but confirming that license is active and in good standing requires checking the issuing state board directly. The verifying trade credentials nationally resource provides state-by-state guidance on where those lookups are performed. Cross-referencing a provider against that credential layer significantly narrows the field to contractors whose documentation is current.

For project owners assessing scope fit rather than just availability, the trade specialization classifications page provides detailed breakdowns of how subtrades are differentiated — distinguishing, for example, a low-voltage electrical contractor from a full-service commercial electrician, or a rough-in plumber from a licensed master plumber. These distinctions affect which contractor is appropriate for a given project phase and which permits the contractor is authorized to pull.

How providers are organized

Providers are structured around 3 primary organizational axes: trade category, license type, and geographic tier.

1. Trade category — Each record is assigned to one of the recognized trade families defined in the authority industries trade categories index. Businesses that operate across more than one category (for example, a general contractor also licensed in roofing) carry cross-references to each applicable category.
2. License type — Records are tagged by the class of license held: journeyman, master, limited specialty, or general contractor, depending on the state's classification system. A master electrician license and a limited electrical contractor license are not interchangeable; the providers reflect that distinction explicitly.
3. Geographic tier — Service areas are recorded at three levels: statewide, regional (multi-county or metro), and single-county or municipal. This prevents broad "nationwide" claims from obscuring a contractor's actual service footprint.

Within each category, records are sequenced by license type first, then by state, then alphabetically by business name. This sequencing prioritizes credential class over proximity, which aligns with how commercial and institutional buyers typically evaluate trade vendors.

What each provider covers

A standard provider record contains 8 defined fields, as documented in the authority industries contractor profile fields reference:

• Business name — Legal operating name as registered with the state licensing board
• Trade category and subcategory — Primary classification and any secondary specializations
• License number and class — Issued by the relevant state authority, with license class noted
• Issuing state and board — The specific regulatory body that issued the credential
• Service geography — Statewide, regional, or single-jurisdiction designation
• Bonding and insurance status — On-file status only; verification directs to issuing insurer
• Profile last reviewed — Date of the most recent data accuracy check per the authority industries update and revision schedule
• Dispute or complaint flag — Binary indicator linked to the complaint and resolution process

Providers do not include pricing, customer reviews, or performance ratings. Those data types introduce editorial subjectivity and are outside the structural scope of a credential-based provider network. The separation between factual credential records and subjective performance data is a deliberate boundary, not a gap.

Geographic distribution

The providers index covers all 50 U.S. states, with record density varying significantly by state population and regulatory environment. States with mandatory statewide licensing — including California, Florida, Texas, and Arizona — have higher provider volumes because a single license covers the full state footprint. States that delegate licensing to counties or municipalities (such as Louisiana's parish-based contractor licensing system) generate more records per business, since each jurisdiction may require a separate credential.

The national scope trades coverage page maps this regulatory variation and explains why the same contractor may appear under multiple geographic records without duplication. A contractor licensed in Harris County, Texas, and separately in Dallas County is not verified twice in error — each record reflects a distinct credential issuance.

High-volume trade categories within the index include general contracting, HVAC, plumbing, and electrical — four trades that collectively account for the largest share of licensed contractor populations in states tracked by the National Contractors Association. Specialty trades such as elevator mechanics, fire suppression, and underground utility work have smaller record sets but are covered in states where those licenses are issued at the state level.

Gaps in coverage reflect genuine regulatory gaps: states or jurisdictions where a particular trade is unlicensed, unregistered, or self-regulated by trade association rather than government authority. Those conditions are documented rather than omitted, consistent with the data accuracy standards described in the authority industries data accuracy policy.

References

• Administrative Conference of the United States — Best Practices for Agency Dispute Resolution Proced
• California Contractors State License Board (CSLB) — License Check
• 2010 ADA Standards for Accessible Design — U.S. Department of Justice
• Alaska Department of Commerce, Community, and Economic Development — Contractor Licensing
• 49 CFR Part 26 — Participation by Disadvantaged Business Enterprises in Department of Transportation
• Arizona State Board of Technical Registration
• Arizona Registrar of Contractors — Arizona Revised Statutes Title 32, Chapter 10
• California Contractors State License Board