Location and Projects
Keystone Plus Construction Corporation
Based in Ward 8 of Washington, DC, Keystone Plus Construction Corporation serves local government agencies, developers, universities, and private clients throughout the region. Founded in 1989, this general contracting firm offers construction management, general contracting, and subcontracting services, including self-perform trades. Keystone’s project portfolio exceeds $375 million in value, highlighted by significant work such as the design-build completion of Peabody Elementary School on Capitol Hill for the D.C. Department of General Services, a project awarded LEED Silver status. The company is a Certified Business Enterprise in the District, holding LBE, SBE, DBE, DZE, and ROB designations, and maintains SBE and DBE certifications with the Metropolitan Washington Airport Authority. Keystone has earned multiple distinctions, including recognition among the “Top 500 Largest Hispanic Companies in the US” and as one of the “2016 Top 100 Minority Business Enterprises.”
Keystone Plus Construction Corporation Services
Keystone Plus Construction Corporation Contact Information
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Building Permits by Keystone Plus Construction Corporation
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Keystone Plus Construction Corporation License info
Verified License
| License # | ECC40000479 |
| Status | Active |
| City | District Of Columbia |
| Type | Industrial Trades, Electrician Contractor |
| Date Issued | 12-01-2025 |
- BuildZoom verified this license was active as of December 2025.
Verify this license's status for Keystone Plus Construction Corporation at the District of Columbia Board of Industrial Trades.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | NAT-82855-3 |
| Status | Active |
| Nation | Environmental Protection Agency |
| Type | Renovation |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Keystone Plus Construction Corporation at the United States Environmental Protection Agency.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 410516000058 |
| Status | Active |
| City | District Of Columbia |
| Type | Gen Contr Construction Mngr |
- When BuildZoom last verified this license, it had an expiration date of October, 2023. Check the current license status of Keystone Plus Construction Corporation with the Department of Consumer and Regulatory Affairs
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 69010816 |
| Status | Inactive |
| City | District Of Columbia |
| Type | Home Improvement Salesman |
- According to the Department of Consumer and Regulatory Affairs, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Keystone Plus Construction Corporation at the Department of Consumer and Regulatory Affairs.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 69010815 |
| Status | Inactive |
| City | District Of Columbia |
| Type | Gen Contr Construction Mngr |
- According to the Department of Consumer and Regulatory Affairs, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Keystone Plus Construction Corporation at the Department of Consumer and Regulatory Affairs.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | NAT-82855-2 |
| Status | Inactive |
| Nation | Environmental Protection Agency |
| Type | Renovation |
- According to the United States Environmental Protection Agency, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Keystone Plus Construction Corporation at the United States Environmental Protection Agency.
This is a sample of licensing data; click here to access a complete history.
97
BuildZoom Score
8
Permits
- Building permit records show that Keystone Plus Construction Corporation has worked on 8 permitted projects.