Onyxion Enterprises · Holding company

Four companies.
One operating system.

Onyxion owns and runs businesses in tax, health coverage, tax software and digital growth. Each one runs on its own. All of them run on one shared layer of technology, data and people.

2002EST
2002. One tax office opens in Margate, Florida.
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What Onyxion does

We build, own and run companies that serve people. Then we connect them, so every one gets stronger as the others grow.

The portfolio

Each company has its own name, licence and team. They share an office in Margate, a client base that overlaps, and the systems Onyxia Digital builds for all of them.

Quality Tax Plus Services logo
01 · Since 2002

Quality Tax Plus Services

Tax preparation, bookkeeping and notary for individuals and small businesses, from the office where Onyxion started.

qualitytaxplus.comTax · Accounting
Quality Tax Plus Services website
Quality Tax Software Solutions logo
02 · Since 2011

Quality Tax Software Solutions

A TaxWise service bureau that gives independent tax offices their software, bank products, training and support.

qualitytaxsoftwaresolutions.comSoftware · B2B
Quality Tax Software Solutions website
Enroll Health Now logo
03 · 11+ years

Enroll Health Now

ACA marketplace enrollment with licensed advisors who check your doctors and prescriptions before you choose a plan.

Licensed through Quality Insurance Services Agency, Inc.
enrollhealthnow.comHealth · Insurance
Enroll Health Now website
Onyxia Digital
04 · Newest

Onyxia Digital

The growth studio that builds the shared systems for the portfolio, and websites, marketing and automation for local businesses.

onyxiadigital.comDigital · Growth
Onyxia Digital website

How it works

The shared layer.

What every Onyxion company runs on from its first day, so a new business starts with the systems the others took years to build.

Four companies, one core.
  1. 01

    AI

    Agents built in-house that sort documents, draft follow-ups and keep work moving between people.

  2. 02

    Data

    One client record across every company, so a family is known the same way at every desk.

  3. 03

    Marketing

    Websites, search, ads and CRM, run by Onyxia Digital for the whole portfolio.

  4. 04

    Operations

    One office, one phone system and one front desk in Margate, open all year.

  5. 05

    Finance

    Billing, payments and books on shared systems, with each company kept separate on paper.

  6. 06

    People

    A trilingual team that works across companies: English, Kreyòl and Español.

Since 2002

It started with one tax office in Margate.

Harry Deshommes opened Quality Tax Plus Services on West Atlantic Boulevard in 2002 and built it one returning family at a time.

The companies that followed grew out of the same office: health coverage for the same families, software for preparers who wanted offices of their own, and a studio to build the technology behind all of it. It is still a family business, and it still answers the phone in three languages.

The Onyxion team at the Margate office
The team at 6079 West Atlantic Boulevard, Margate, 2025.
2002First company
4Operating companies
~800Clients served
3Languages