Founder
I did every job before I managed it.

I started CASS in October 2018, and for its first eight months I slept on the office floor in Skypod.
I did every job in the company before I managed anyone doing it: technician, installer, operator, admin. The person who set our standards has done the work being standardised.
In 2018, before CASS, I spent six months driving for a ride-hailing platform. Nobody was watching those drivers, and the good ones still turned up and did it properly, because the system paid them for exactly the thing the passenger wanted. A well-designed incentive does the work that supervision is usually hired to do.
CASS is built on that. We are organised into squads that see their own economics: what a job earned, what it cost, what was left. Work follows documented SOPs, and every job is logged in Chance OS, the job-management platform I built for us, so what was done at a site is recorded rather than remembered.
For a client, that means the work stays consistent when the crew on site changes. It is also why we would rather be small and well-run than large and thin, and why CASS has never taken outside capital. A shared interest lasts only as long as the interests coincide; we work on shared destiny.
Spencer LengFounder & Managing Director, Chance Air-Cond Sales & Service Sdn. Bhd. (CASS)
Technicians fix machines. Contractors run jobs. Systems build companies.
What he has built
CASS
The air-conditioning contractor he founded in 2018: commercial HVAC maintenance, projects, design & build, and luxury home climate.
The job-management platform CASS runs on, built by Spencer; now offered to other contractors.
An LED advertising-truck business founded by Spencer and run day-to-day by its own team.
Credentials
His own
- Ts. — Professional Technologist, Malaysia Board of Technologists (Building & Construction Technology), PT26100307, approved 22 October 2026
- BEng (Hons) Civil Engineering, University of Nottingham
- Action Education EMBA programme (2021)
- Committee member, Malaysian Air-Conditioning & Refrigeration Association (MACRA)
- Guest on Ai FM (爱FM) for a 30-minute segment on the air-conditioning industry
The company's (CASS)
- Authorised Daikin Dealer · Daikin PROSHOP Dealer (from 7 October 2026) · Authorised Hisense Dealer
- Daikin VRV CORE dealer — Bronze Award, FY25/26
- Daikin VRV CORE Installation Grade: Excellent, FY2025/26
- Daikin FY25/26 Million Ringgit Sales Award — 6th Consecutive Years
- ISO 9001:2015 and ISO 45001:2018 — certified by SQC Certification Services (Malaysia)
- CIDB G4 (B · CE · ME)
