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US Company Database
4.5M+
Admin and support company records with EIN, full address, phone, website, contact name, employee count, revenue, SIC and NAICS codes. The primary source.
The most complete list of administrative and support services companies in the USA. Your $499 purchase unlocks the full 134M+ nationwide bundle — including 4.5M+ staffing agencies, janitorial firms, security companies, travel agencies, and business support services.
Each database comes from a different publicly available source. Together they provide maximum coverage of all US administrative and support services businesses.
Admin and support company records with EIN, full address, phone, website, contact name, employee count, revenue, SIC and NAICS codes. The primary source.
Yellow Pages-sourced admin services records with GPS coordinates for territory mapping and regional field sales coverage.
Decision-maker contacts at admin and support firms — operations managers, owners, and principals — with email, direct phone, and title.
Import directly into your CRM, dialer, or email platform. All fields are included across the three databases.
Scroll through actual records from the database. Phone numbers and emails are partially masked in the sample — the full purchased file includes all contact details unmasked.
From HR tech vendors to cleaning supply distributors — the admin services database powers outreach across dozens of B2B verticals.
Sell ATS platforms, payroll software, onboarding tools, and workforce management systems directly to the thousands of staffing agencies in the database.
Reach janitorial service companies, commercial cleaning firms, and facility management businesses to sell supplies, equipment, and chemicals.
Target security guard companies, monitoring firms, and investigation agencies for equipment, training programs, liability insurance, and background check services.
Offer workers compensation, general liability, and business interruption insurance to the 4.5M+ admin businesses that require coverage to operate.
Market scheduling tools, CRM platforms, accounting software, and field service management apps to operations managers across all admin sub-sectors.
Target travel agencies, meeting planners, and event coordination companies for supplier partnerships, booking platforms, and destination marketing.
Analyze admin services market density by geography and company size for private equity research, franchise expansion planning, or competitive benchmarking.
Build hyper-targeted prospect lists filtering by state, NAICS sub-code, and company size for cold email, cold calling, and LinkedIn prospecting.
Administrative and support services (NAICS 56) is the single largest NAICS sector in our database with 4.5M+ records — representing 6.9% of all business data. This reflects how pervasive support services are across the US economy. Every other industry sector relies on staffing agencies, cleaning services, security firms, and business support companies to operate.
The sector spans an enormous range of businesses: temporary staffing agencies, janitorial and commercial cleaning services, security guard and investigation firms, travel agencies and meeting planners, document management companies, pest control, landscaping, waste management, and general business support. Each sub-sector is a distinct B2B outreach opportunity.
Use NAICS 5613 for staffing, 56172 for janitorial, 56161 for security guard, 56151 for travel agencies, or 5621 for waste management — all filterable within your CSV file. This level of classification lets you run targeted campaigns by specific trade type.
All sub-categories are represented. Filter any of these within your CSV using the NAICS code column.
The most complete administrative and support services database in the USA — staffing, janitorial, security, travel agencies, and more. One payment, instant download.
Get Instant Access — $499 View Sample DataThe full $499 bundle covers all 20 NAICS sectors. Explore data by other industries below.