30+ Years in service
4,000+ Employees
60M+ sq ft Under management
8 Property sectors
Industries We Serve

We know your building.
Whatever the sector.

For over 30 years, Alliance has delivered specialized building services across every major property type in the NYC metropolitan area. Click any sector to learn more.

Commercial Office
Class A & B office towers, corporate campuses
Residential
Luxury condos, co-ops, doorman buildings
Healthcare
Hospitals, medical offices, outpatient facilities
Retail & Hospitality
Flagship retail, hotels, restaurants, venues
Education
Universities, K–12 schools, private institutions
Industrial
Warehouses, distribution centers, manufacturing
Government
Municipal buildings, courthouses, transit hubs
Life Sciences
Pharma offices, research labs, biotech facilities

Our Portfolio

Trusted by NYC's
leading property owners.

From the Empire State Building to Class A towers across Manhattan — Alliance partners with the owners and managers who set the standard.

SL Green
Realty
RXR
Realty
Empire State
Building
George Comfort
& Sons
Trinity
Real Estate
+ More on
clients page

Ready to consolidate your building services?

Let Alliance become your single partner across every property in your portfolio.

Request a Quote See All Clients & Industries →