What departments does The Onyx Group have?

The Onyx Group has employees across 4 departments including Entrepreneurship, Finance, Program & Project Management, Community & Social Services.

What is the largest department at The Onyx Group?

The largest department at The Onyx Group is Entrepreneurship with 1 employees.

Where are The Onyx Group employees located globally?

The Onyx Group has employees across 3 continents and 6 countries including India, United Arab Emirates, Japan, United Kingdom Of Great Britain And Northern Ireland, France.

How has The Onyx Group's team size changed over time?

The Onyx Group's team has grown from approximately 6 to 7 employees based on available data.

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The Onyx Group Employee Directory

Architecture and PlanningVirginia, United States51-200 Employees

The Onyx Group operates in the architecture and planning industry and is based in Alexandria, Virginia, United States. The company employs between 51 and 200 people. In December 2024, The Onyx Group was acquired by The Diallo Group, marking a milestone in the Diallo Group's strategic growth. The organization maintains an online presence at https://diallogrp.com. Its technology stack includes Google Cloud DNS, Google Fonts API, Element UI, jQuery, Isotope, jQuery Migrate, Piwik PRO Core, and Magnific Popup. Reported revenue is in the range of $1 million to $10 million.

The Onyx Group Global Highlights

North America
59

United States Of America
59

Asia
3

India
1
United Arab Emirates
1
Japan
1

Europe
2

United Kingdom Of Great Britain And Northern Ireland
1
France
1

The Onyx Group's Leadership

O. D.
Chief Executive Officer
Mobile Phone
Email
J. T.
Director Of Finance
Mobile Phone
Email
K. R.
Quarry Manager
Mobile Phone
Email
L. C.
Officer Manager
Mobile Phone
Email
N. L.
Billing Revenue And Projects Specialist
Mobile Phone
Email
D. L.
Community Planner
Mobile Phone
Email
S. E.
Transportation Planner
Mobile Phone
Email
M. T.
Mobile Phone
Email

The Onyx Group Employee Metrics

100%

50%

2026

2025

Arts & Design
Business
Accounting
Administrative
Analytics
Other

Contact profiles from The Onyx Group

Name

Title

Contact Info

Location

Last Update

O. D.
Chief Executive Officer
Mobile Phone
Email
Oct 17, 2024
J. T.
Director Of Finance
Mobile Phone
Email
Oct 17, 2024
K. R.
Quarry Manager
Mobile Phone
Email
United KingdomNorth Lanarkshire
Feb 21, 2024
L. C.
Officer Manager
Mobile Phone
Email
Oct 17, 2024
N. L.
Billing Revenue And Projects Specialist
Mobile Phone
Email
Apr 14, 2026
D. L.
Community Planner
Mobile Phone
Email
Japan
Apr 15, 2026
S. E.
Transportation Planner
Mobile Phone
Email
Oct 18, 2024
M. T.
Mobile Phone
Email
Jul 09, 2024

Frequently Asked Questions

What is The Onyx Group known for?

The Onyx Group was founded in 1982 operates in the Architecture and Planning industry; you can contact the main corporate office by phone at

+1-703-548-****

. Explore The Onyx Group's company overview page for more information.

What is The Onyx Group's most common email format?

The Onyx Group employees' email format typically follows the pattern of . Trying to find reliable and up-to-date employee contact data? Find more The Onyx Group email formats with LeadIQ.

How many employees does The Onyx Group have currently?

The Onyx Group has approximately 53 employees as of July 2026. These team members are located across 3 continents, including North AmericaAsiaEurope.

Who are The Onyx Group's key employees and leadership?

As of July 2026, The Onyx Group's key employees include:

Chief Executive Officer: O. D.
Director Of Finance: J. T.
Quarry Manager: K. R.
Officer Manager: L. C.
Billing Revenue And Projects Specialist: N. L.

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The Onyx Group Employee Directory

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