01
Janitorial & Custodial Services
Daily, weekly, and custom custodial programs that keep buildings, offices, and public spaces clean, safe, and presentable.
Maryland-Based Government ContractorSAM.gov Ready
Maryland Government Contractor
Reliable
General Services.
McCullough General Services LLC delivers professional janitorial, commercial cleaning, warehouse operations, and contract support services to government agencies and commercial clients across Maryland and the surrounding region.
Core Competencies
Government & Commercial Services
Ten service lines, one accountable partner. We staff, supervise, and report on every contract so your team can focus on mission, not operations.
02
Commercial Cleaning Services
Professional cleaning services tailored for offices, retail spaces, and commercial buildings.
03
Deep Cleaning & Disinfection
Intensive sanitization and disinfection for high-touch and high-traffic areas.
04
Day Porter Services
Continuous daytime cleaning, restocking, and immediate-response support for active sites.
05
Floor Care & Maintenance
Specialized floor care including stripping, waxing, buffing, and routine maintenance programs.
06
Inventory & Warehouse Support
Organized support for inventory management, material handling, and warehouse operations.
07
Shipping & Receiving Support
Reliable dock and mailroom assistance to keep packages and goods moving accurately.
08
Event & Surge Staffing Support
Flexible staffing solutions for events, seasonal surges, and short-term operational needs.
09
General Business Services
Adaptable business support services that fill operational gaps and keep work flowing.
10
Contract Support Services
End-to-end contract execution support from mobilization through closeout.
Why McCullough
Built for government work.
We compete on execution. Every contract is staffed by trained personnel, supervised in person, and reported with the documentation contracting officers expect.
Reliability
Consistent performance and clear communication on every contract — no missed shifts, no surprises.
Professionalism
Trained, uniformed, and supervised personnel who represent your site with care.
Cost-Effective
Right-sized teams, transparent pricing, and disciplined scheduling that keep budgets in line.
Local Accountability
Maryland-based ownership and on-the-ground supervision — decisions made close to the work.
Capability Statement
McCullough General Services LLC is a Maryland-based small business providing general services to government agencies and commercial clients.
Request Full Statement →Company
McCullough General Services LLC
Headquarters
Maryland, USA
Business Type
LLC · Small Business
SAM.gov Registered
Yes
UEI
QPBEMLB4PM33
CAGE Code
To Be Updated
DUNS
145043286
Service Area
Maryland & Surrounding Region
Core NAICS
561720 Janitorial
Primary Email
mcculloughgsllc@gmail.com
Primary Phone
443-514-5033
Certifications
Qualified Today. Expanding Tomorrow.
McCullough General Services LLC is a Maryland-based small business actively pursuing additional federal, state, and local certifications to better serve government contracts.
Current
Current Certifications
- Small Business
- Maryland-Based Business
In Progress
Future Certifications
- MBE (if applicable)
- DBE (if applicable)
- SBA Certifications
Get In Touch
Request a quote or capability statement.
Tell us about your contract or project. We respond to all inquiries within one business day.