NAICS 238220 · District of Columbia
Plumbing, Heating, and Air-Conditioning Contractors Business Names in District of Columbia
District of Columbia has 35 plumbing, heating, and air-conditioning contractors locations, ranking #51 of 51 states and D.C. and making up 0% of the U.S. total.
Name ideas for a District of Columbia plumbing, heating, and air-conditioning contractors business
Before you commit, search the District of Columbia business entity database (linked below) to make sure the name is not already registered there.
Plumbing, Heating, and Air-Conditioning Contractors in District of Columbia by the numbers
Locations by number of employees in District of Columbia
Source: U.S. Census Bureau, County Business Patterns 2022. Counts cover employer establishments (businesses with paid employees); self-employed owners without staff are not included. Small establishments with 1–4 employees include those that reported no paid employees in mid-March.
Register your business name in District of Columbia
In most states you check name availability and form an LLC or corporation through the Secretary of State (or equivalent) office, then register with the state tax and labor agencies if you will collect sales tax or hire employees. Official District of Columbia links:
- Permits, Licenses, and Certifications
- Office of the Secretary
- Office of Tax and Revenue
- Department of Employment Services
- Employer Tax Information (Unemployment Insurance)
- District of Columbia website
- Business Resource Center
- Economic Development and Planning
- New Hire Registry
- Small Business Administration - DC
- Agency Directory
- Office of the Deputy Mayor for Planning and Economic Development
- Office of Contracting and Procurement
Official state agency links as listed by the IRS on its District of Columbia state links page. Filing fees and steps change, so confirm current requirements with the agency before you file.
Other states for plumbing, heating, and air-conditioning contractors
See the national plumbing, heating, and air-conditioning contractors page → · Top industries in District of Columbia →