Custom software development
Bespoke systems & automation
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Singapore · Software engineering since 2019
Custom software
Custom software
built the way
you actually work
We design and build bespoke software, mobile applications, integrated business systems, AI automation and IoT platforms for companies in Singapore — then run them. No outsourcing. No hand-offs. One team, end to end.
ITMOS — Fleet Control
Live
Active128+6 today
On-time97.4%+1.8%
Idle fuel3.1%-0.9%
Karbon0 — Emissions Ledger
Synced
Scope 1412-7.2%
Scope 21,084-4.1%
Scope 36,207+2.3%
ISSB-alignedTCFDGRI
HeyKiko — Private RAG Assistant
On-prem
What is our warranty period for the Series-4 controller?
Series-4 controllers carry a 24-month warranty from commissioning, extendable to 36 months under the Care+ contract.
Warranty_Policy_2026.pdf · p.4
Cited answersRole-based accessZero data leakage
AZEvents — Programme Builder
Publishing
Opening keynote
Track AGrand Ballroom · 820 registered
ESG disclosure workshop
Track BStudio 2 · 12 seats left
Exhibitor matchmaking
NetworkingHall 1 · 64 meetings booked
Panel: fleet electrification
Track AStudio 1 · livestream on
Illustrative interfaces — book a demo for the real thing
SGT
Trusted by government agencies, enterprises and fast-moving teams
What we do
Five practices, one accountable team
Bespoke software, mobile, integration, AI and IoT. Each is a real discipline with its own page — not a bullet on a capability list.
Est. 2019 · Far East Square
0Organisations served
Who we are
A product company that still builds to order
Hannsville Technologies started as a specialist software consultancy in Singapore. Today we run a portfolio of our own enterprise platforms — and we still take on the bespoke work that keeps us sharp. That combination is unusual, and it is the whole point: everything we ship for a client has already been battle-tested inside a product of our own.
We work across logistics, sustainability, retail, hospitality and public sector environments. Small senior team, direct access to the people writing the code, and a bias toward systems that are still useful in five years.
Built for scale
Architected to grow from a single depot to a national fleet without a rewrite.
Regulation-ready
Singapore PDPA and SGX climate disclosure designed in, not bolted on.
Still here after go-live
Support, enhancement and roadmap work is standard — not a separate sales conversation.
Proof, not promises
Four products we build and run ourselves
The fastest way to judge whether we can build your system is to look at ones we already operate in production. Each began as client work, and each is still maintained by the team that wrote it.
01Fleet & Transport
ITMOS Fleet System
An Intelligent Transport Management & Operations System for operators who need to know where every vehicle is, how it is being driven, and what it will cost next month.
Real-time IoT GPS tracking & telematics
Driver behaviour monitoring & scoring
Predictive maintenance & parts alerts
Route optimisation & dispatch
Fleet utilisation92.4%
02ESG & Climate
Karbon0 — ESG platform
Carbon accounting built for the disclosure era. Automates Scope 1, 2 and 3 tracking and produces audit-ready reports aligned to GRI, TCFD and the ISSB standards.
Scope 1, 2 & 3 emissions tracking
GRI · TCFD · ISSB-aligned reporting
Supplier data collection workflows
SGX climate disclosure ready
vs baseline-14.6%
03Event SaaS
AZEvents — run the whole show
Registration, ticketing, multi-track programmes, exhibitor portals, matchmaking and post-event analytics — from the first invite to the final revenue report.
Branded registration & ticketing
Multi-track conference scheduling
Exhibitor & sponsor portal
Live analytics & reconciliation
Opening keynote
A820 registered
ESG workshop
B12 seats left
Matchmaking
Net64 meetings
04Applied AI
HeyKiko — your AI, your data
A retrieval-augmented assistant that only knows what you give it. Cited, verifiable answers from your own SOPs and contracts, deployed on-premise or in your private cloud.
Private AI on your own documents
Multi-format ingestion — PDF, Word, web, SQL
Every answer cited to its source
On-premise or private cloud
Which SOP covers cold-chain deviation?
SOP-114 §3.2 — deviations beyond ±2°C for more than 20 minutes require a QA hold. SOP-114_ColdChain.pdf · §3.2
Full service list
Nine ways we get involved
Beyond the five core practices — from a two-week architecture review to running your infrastructure for the next five years.
Bespoke development
Software shaped around your workflows instead of the reverse.
Web & mobile development
Fast, accessible web apps and native or cross-platform mobile builds.
Technology consultation
Independent guidance on strategy, architecture and vendor selection.
Machine learning & AI
Predictive analytics, computer vision, LLM integration and agentic workflows.
Data services
Pipeline engineering, governance and PDPA compliance including outsourced DPO cover.
SaaS & Cloud ERP
Snowfire modules for HR, finance, CRM and projects — or a bespoke cloud suite.
System integration
API development and middleware that make the stack behave like one system.
Managed IT services
Monitoring, helpdesk, patching and cloud maintenance under a clear SLA.
Data migration
Profiling, cleansing, mapping and validation designed for zero data loss.
0Years shipping
0Live platforms
0Clients served
SGPData residency
FAQ
Questions we get before the demo
By default in Singapore. Every platform supports Singapore data residency, and HeyKiko and Securus can be deployed entirely on your own infrastructure if data must never leave your perimeter. The specific arrangement goes in writing before contract.
Almost always. Integration is one of our nine service lines — we build API connectors and middleware for ERP, CRM, accounting, HR and telematics hardware. If a system has an API, a database or a scheduled export, we can work with it.
Platform deployments usually go live in 4–8 weeks depending on data migration. Bespoke builds run 3–6 months to a first production release, delivered in two-week increments so you see progress continuously rather than at the end.
Both. Snowfire starts at S$26 per user per month specifically so a ten-person company can run proper ERP. On the bespoke side we are honest about fit — if an off-the-shelf tool serves you better, we will say so.
A support arrangement with a defined SLA, monitoring on the environment, and a quarterly roadmap review. The engineers who built the system maintain it — there is no handover to a separate support organisation.
Yes. We provide outsourced DPO services and PDPA consultancy, including data inventory, policy drafting, breach response planning and staff training.
Next step
Bring us the messy problem. We like those.
A 30-minute call, no deck, no obligation. Tell us what is breaking and we'll say honestly whether we're the right team to fix it.