Company
Built in Miami.
Running on three continents.
It started with friends who loved building things. It grew into this.
Founded in 2008 and founder-led ever since. This page is the firm itself: the story, the people whose names are on the door, and why the largest rooms trust us at their scale.
FOUNDED 2008 ◆ MIAMI · DOHA · LONDON ◆ $15B+ CLIENT VALUATIONS ◆ ONE STANDARD
The story
Scroll through eighteen years.
It started with friends who loved building things.
A few friends in Brickell, laptops on borrowed desks, building for the love of the craft. No investors to impress, only work worth signing. The habit that becomes the method is already there: understand the problem completely before writing a line, and ship nothing you would not sign.
The first platforms ship.
ZTG formalizes and builds what Miami’s businesses cannot buy off the shelf. The first platform ships, then another, each built to order and kept running after launch. The counsel comes with the code from the start: what to build, and what not to.
From screens to pockets.
The world moves into its pockets and the work follows: native iOS and Android, judged in public, by everyone, every day, for consumer brands and for operators in the field. The desks become a full floor.
A major office in Brickell.
Designers, architects, QA and security join the engineers, and the office in Brickell becomes a real address. Security is a discipline here, not a phase, and has been since the first platform. New disciplines arrive as fast as the technology changes, and every one learns the same rule on day one.
Inside a Layer-1.
For four years ZTG is inside NEAR Protocol as a Foundation development partner and ambassador: it ships the protocol’s original iOS and Android wallets, runs developer office hours, works with the protocol’s senior leadership and stands on its stages advising founders on their own implementations. When the chapter closes, the wallets stay in people’s hands, and the standard comes home.
The stakes change.
Hospitals. Insurers. Funds. The problems get harder and the rules get stricter, HIPAA, audit, fiduciary pressure, and the work holds, because the standard was built for this before anyone asked it to be. The relationships run for years.
The rooms get bigger.
The advice ZTG gave founders across a café table is now given to boards. Leaders bring their own implementations for counsel; the founder is on Univision as an expert in cybersecurity and software engineering, on stages for keynotes, and in 2019 Brickell Magazine names him to its Top 20 Under 40. Same counsel, same security discipline, at the highest level.
The systems learn to think.
ZTG teaches enterprise systems to act on their own, operational AI, agents, automation, and builds the guardrails that keep them honest. The craft is the same. The stakes are not.
Miami, then Doha and London.
ZTG outgrows Brickell. Doha opens for the Gulf, London for Europe, each led from the city it serves and held to one standard. Three time zones, and the desk that answers is the one in your region.
Eighteen years, one method.
ZTG’s engineers sit inside some of the largest enterprises in their industries, on their hardest problems. The café table became a boardroom table, and the method from the first chapter has not changed: understand everything before building anything, and ship nothing you would not sign.
TWO FRIENDS · MIAMI 200801 / 10
IT STARTED WITH FRIENDS WHO LOVED BUILDING THINGS
It grew into this.
SCROLL TO DRIVE THE YEARS ↓
CONTINUE
CLIENTS FROM STARTUP TO PUBLICLY TRADED · ONE STANDARD SINCE 2008
The founder
“Surround yourself with people who are incredibly talented and equally driven.”
Henry Zakkour.
Eighteen years on, the founder still runs the discipline the firm sells.
FOUNDER · DIRECTOR OF ENGINEERING
MIAMI · SINCE 2008
Henry founded ZTG in Miami in 2008 and has run its engineering ever since, from inside the work rather than above it. The title is deliberate: the firm sells a discipline, and its founder has never stepped away from it.
He works fluently across software engineering, product, cybersecurity and the boardroom, and deeply in more than one of them. It is why enterprises tend to bring him the problems that sit between departments.
His counsel reaches beyond ZTG's own builds: major enterprises navigating technology, multi-billion-dollar companies across multiple industries, and the technology and venture scene, where he speaks on its stages. From enterprise systems to Web3, where he served as a NEAR Protocol Foundation ambassador working directly with the protocol's senior leadership, he has been called on by international media, including Univision, as an expert in cybersecurity and software engineering.
Under his leadership a Miami boutique became a global engineering provider, with offices in Miami, Doha and London and engineers embedded inside some of the largest enterprises in their industries.
- Founder
- Founder and Director of Engineering, ZTG · 2008 to today
- Ambassador
- NEAR Protocol Foundation ambassador and development partner · past
- Counsel
- Advisor to enterprise leaders and founders on their own implementations
- Award
- Top 20 Under 40 · Brickell Magazine, 2019
- Press
- On-air expert in cybersecurity and software engineering · Univision
- Stages
- Keynotes and panels on emerging technology and venture
A CLIENT, ON RECORD“Henry specifically was always available to give clear, honest and high value advice and strategic input when called upon, which is exactly what you need in such a fast pace & complex industry.”
Bring him a problem worth solving. FULL PROFILE →THE MIAMI DESK →
Start a brief →Regional leadership
Three offices, named leadership.
Every office has a named leader, and every office keeps the same standard.
An operating map of ZTG's three offices: Miami, the headquarters, reaching across the Americas; London, reaching Europe and North Africa; and Doha, reaching the Gulf and Asia. A route connects the three, and each office's regional reach is shown as warmed land around it.
Frederick Toye
HEAD OF THE EUROPEAN PRACTICEFrederick leads ZTG's European practice from London. A Royal Warrant holder appointed by HM King Charles III, a distinction reserved for those who have supplied the Royal Household to an exacting standard, he brings that bar to ZTG's European clients.
hello@ztglondon.comFULL PROFILE →THE DESK →
Sheikh Salman bin Faisal bin Salman Al Thani
HEAD OF THE GULF PRESENCEHis Excellency Sheikh Salman leads ZTG's Gulf presence from Doha. The office anchors the firm's work in a region investing in technology at national scale, with leadership from within the region itself.
hello@ztgdoha.comFULL PROFILE →THE DESK →Beneath the named leadership sits the bench that runs delivery day to day: principal engineers and practice leads across platform, mobile, blockchain, AI and security. Their configurations are on the Teams page.
Enterprise scale
Why the largest rooms trust us.
We have advised and worked inside some of the largest enterprises in their industries, across cutting-edge technologies and multiple sectors.
Multi-billion-dollar rooms
ZTG engineers are embedded across multi-billion-dollar enterprises in multiple industries, inside their teams, their tooling and their compliance regimes.
The full range
From startup to publicly traded company, the firm has run engagements at every stage a business passes through, and knows which discipline each stage demands.
Five disciplines, one contract
Strategy, engineering, intelligence, security and operations under one roof and one standard, so nothing falls between vendors.
Three cities, one standard
Miami, Doha and London run as one firm, the same delivery discipline whichever office answers.
Security & compliance engineering
Built for regulated rooms: security and compliance are engineering disciplines here, not afterthoughts.
Much of it under NDA
The public portfolio is a selection. A large share of ZTG's enterprise work runs under NDA, which is exactly how enterprise work should run.
What we believe
The standard.
Five disciplines under one roof, one contract and one standard, so nothing falls between them. Leadership that stays close enough to the work to be accountable for it. And a rule we keep even when it costs us: if we are not the right people to solve it, we say so.
How that plays out in a first engagement is on the Approach page.
Have a complex problem?
Let's engineer the answer.
The brief takes about a minute: seven quick questions, an instant expert first read, and an engineer replies as soon as possible. No deck, no pitch.