Insights

Gathering insights about The Onyx Group…

Similar companies to The Onyx Group

The Onyx Group Tech Stack

The Onyx Group uses 8 technology products and services including Microsoft 365, Google Fonts API, JSON-LD, and more. Explore The Onyx Group's tech stack below.

Microsoft 365
Email
Google Fonts API
Font Scripts
JSON-LD
Javascript Frameworks
Isotope
Javascript Libraries
jQuery
Javascript Libraries
imagesLoaded
Javascript Libraries
All in One SEO
Search Engines
Magnific Popup
Web Tools And Plugins

Media & News

Diallo Group attends event SAME Federal Small Business Conference.
DBA The Diallo Group is proud to announce its participation in the SAME Federal Small Business Conference (SBC) - the flagship event for small business contractors and federal agencies across the architectural, engineering, and construction (AEC) industries.
Jun 03, 2025 | diallogrp.com

The Onyx Group's Email Address Formats

The Onyx Group uses at least 2 format(s):

The Onyx Group Email Formats	Example	Percentage
FLast@onyxgroup.com	JDoe@onyxgroup.com	84%
First@onyxgroup.com	John@onyxgroup.com	12%
FMiddleLast@onyxgroup.com	JMichaelDoe@onyxgroup.com	2%
Last@onyxgroup.com	Doe@onyxgroup.com	2%

Frequently Asked Questions

Where is The Onyx Group's headquarters located?

The Onyx Group's main headquarters is located at 625 North Washington Street 304 Alexandria, Virginia 22314 United States. The company has employees across 3 continents, including North AmericaAsiaEurope.

What is The Onyx Group's phone number?

You can contact The Onyx Group's main corporate office by phone at

+1-703-548-****

. For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is The Onyx Group's official website and social media links?

The Onyx Group's official website is diallogrp.com and has social profiles on LinkedIn.

What is The Onyx Group's SIC code NAICS code?

The Onyx Group's SIC code is 8712 - Architectural Services NAICS code is 54131 - Architectural Services.

How many employees does The Onyx Group have currently?

As of February 2026, The Onyx Group has approximately 57 employees across 3 continents, including North AmericaAsiaEurope. Key team members include Chief Executive Officer: O. D.President: A. M.Owner: T. G.. Explore The Onyx Group's employee directory with LeadIQ.

What industry does The Onyx Group belong to?

The Onyx Group operates in the Architecture and Planning industry.

What technology does The Onyx Group use?

The Onyx Group's tech stack includes Microsoft 365Google Fonts APIJSON-LDIsotopejQueryimagesLoadedAll in One SEOMagnific Popup.

What is The Onyx Group's email format?

The Onyx Group's email format typically follows the pattern of FLast@onyxgroup.com. Find more The Onyx Group email formats with LeadIQ.

When was The Onyx Group founded?

The Onyx Group was founded in 1982.

The Onyx Group

Q: What is The Onyx Group's official website and social media links?

The Onyx Group's official website is diallogrp.com. The Onyx Group has social profiles on LinkedIn.

Q: How many employees does The Onyx Group have currently?

The Onyx Group has approximately 57 employees.

Q: What technology does The Onyx Group use?

The Onyx Group's tech stack includes All in One SEO, Nginx, Font Awesome, Swiper, MySQL.

Architecture and PlanningVirginia, United States51-200 Employees

The Onyx Group was acquired by The Diallo Group in December 2024, marking a key milestone in our strategic growth.

Company Overview

Headquarters: 625 North Washington Street 304 Alexandria, Virginia 22314 United States
Phone number: +1-703-548-****
Website: diallogrp.com
SIC Code: 8712 - Architectural Services
NAICS Code: 54131 - Architectural Services
Founded: 1982
Employees: 51-200