Who is who
Enerzyz
The technology
Enerzyz is an AI platform for building energy, founded by Stanford University graduates. It is a US company headquartered in Palo Alto, with a Singapore office and entity, and its data-science and engineering team supports 150+ sites globally. Enerzyz provides the technology, the integration and the platform engineering. It does not sell you equipment, and it does not replace your building systems.
Bookallil Advisory
Your independent advisor
An independent hospitality-technology advisory firm, and the Global Strategic Distribution Partner for Enerzyz. We assess whether Enerzyz suits your building, govern the implementation, and act as your advocate through the engagement — including telling you when the answer is no.

Martin Bookallil
Principal Advisor & Founder
Led by Martin Bookallil
Former VP of Marriott Asia Pacific Technology, with 30+ years in hospitality technology across 1,100+ hotels. Martin has directed technology through the Starwood–Marriott integration and has sat on both the operator and the vendor sides of the table, so he assesses a building's technology the way an owner would, not the way a vendor would sell it.
1,100+
hotels
30+
years
APAC
former VP, Marriott Technology
The operating difference
We don't approach a facility purely as engineers or software vendors. Our team's background is hospitality, one of the most operationally demanding sectors there is: service, uptime, labour cost, guest experience and margin all have to be managed together, every day, with no room to treat any one of them in isolation. That's the mindset we bring to every optimisation project.
Enerzyz's technology backs that mindset with continuous data analysis and optimisation: the platform does the analysis, and the team makes sure it actually works for how your facility really runs.
Why independence matters
Every vendor believes their solution is right. Bookallil Advisory independently determines what's right for your building, and gives you a straight recommendation to proceed, pause, or pass. Already have something in play? We'll benchmark it honestly first.
Who is accountable to you
Bookallil Advisory independently identifies the opportunity and stays accountable to you through the engagement. Enerzyz provides the platform that delivers and verifies the savings. Two specialists, one team accountable for your outcome — and your Bookallil Advisory contact remains your single point of escalation throughout.
How an engagement is priced
Every building is different, so the commercial model is recommended after the assessment, never before. In the typical case there is no CAPEX (subject to assessment), and the lead option is shared savings — you pay only on what is verified as saved, with a four-month proof period and a no-penalty exit.
Full commercial detail, including all payment options