OUR FIRM

Logo with letters O, ampersand, and S in blue and gray.

Experts in New Design and Restoration Engineering

Under the leadership our Founder, VP Samy, O&S has evolved into a full-service A&E Consulting Firm with over 100 professionals across seven offices, including Hackensack, NJ, New York City, Bedminster, NJ, Pennsylvania, Ohio, Washington DC, and Florida. The MBE- and DBE-certified firm handles over 300 projects yearly, excelling in design and construction administration.

Reception desk with O&S Engineers & Architects logo, a receptionist working on the phone, and plants on the desk.

Our History

A modern office skyscraper labeled 'Encova' next to a historic church with a tall steeple, set against a clear blue sky.

1998

Columbus, Ohio office opens

2003

Blue Bell, PA Office opens

Staff grows to 20 employees

Three-story brick office building with large windows, surrounded by grass and trees.
Brick building facade with a sign for O&S Associates. Features blue awnings, multiple windows, a streetlamp, and a sidewalk.

2005

O&S moves headquarters to Hackensack, NJ

2011

New York city office opens

Staff grows to 35 employees

Group of people wearing helmets and masks in an indoor facility with climbing gear and a "Expert Use Only" sign in the background.

2016

DC office Opens

Modern glass office building with reflections, American flag, and blue sky

2025

Staff grows to 110 employees

Logo of O&S Engineers & Architects in blue and black text
Logo of O&S Engineers & Architects

1996

O&S is incorporated by VP Samy.

Englewood Cliffs, NJ office opens

2014

In-house service additionally includes MEP engineering

Four new Principals are elected within the firm

Industrial machinery with large green pipes and metal components in a factory setting.

2017

MEP & Civil engineering services expand

Staff grows to 70 employees

Modern brick office building with large windows and gabled roof at sunset, surrounded by trees and a parking lot.
Office building with a directory sign listing businesses, surrounded by palm trees and a parking lot, located in a sunlit area.

2018

Southeast Florida Office opens

2023

NYC Office expansion and renovations

Modern office space with open cubicles, desks with computers, and overhead ductwork.

Partner With Us

Let’s build excellence together. Reach out to our team of experts now!