AI, ML & custom software — from MVP to production, for teams in the US, UK, Gulf & beyond.
Revwald is a Sri Lanka–based software company. Our senior engineers in Colombo build custom AI, machine-learning and software products for companies in the United States, the United Kingdom, the Gulf and worldwide. Every engagement has a fractional-CTO-level owner, working hours that overlap your team, and a running start from proven accelerators — so you reach a working release in weeks, not quarters.
What we build
AI systems with an owner attached
From proof of concept to a system your team runs — LLM apps, ML models, data platforms and the custom software around them, delivered by one accountable pod.
How we work
Simple steps, no surprises
Four clear stages from first call to ongoing support — so you always know what happens next.
- 01
Scope & shape
A working session on the outcome, the data, and the constraints. You leave with a scoped plan, a fixed price for phase one, and a named owner.
- 02
Prove
A 2–4 week proof of concept against your real data. A go / no-go decision backed by evidence before the main build starts.
- 03
Build in the open
Weekly demos of running software. One decision-maker on your side, one accountable pod on ours — working your hours.
- 04
Run & hand over
We deploy, set up monitoring and evals, train your team, then support on a retainer or step back — your call.
A team you can actually talk to
- A senior owner on every engagement — not a PM relaying messages
- Hours that overlap the UK and Gulf, with daily handoffs for US teams
- Fixed-price phase one, then transparent monthly
- Accelerators you can license — ZekiSales, Cogni Arkiv, Heilarc, RostLoop
What clients say
Sectors we build for
- Retail & commerce
- Logistics
- Healthcare
- Fintech
- Professional services
- SaaS
Proof in the work
Our Case Studies
Real systems in production — scoped clearly, proven on real data, and supported after launch.
All case studiesZekiSales · ERP & POS
Retail chain, unified checkout
Replaced fragmented billing across 12 outlets with one POS and inventory system. Same-day stock sync and clearer margins for the owner.
40% faster checkoutView caseCogni Arkiv · Mental health
Clinic patient records + AI notes
Built a secure records workspace for therapists—session notes, history, and AI-assisted summaries without the spreadsheet chaos.
Hours saved weeklyView caseCustom software
SME ops dashboard from scratch
Designed and shipped a lightweight ops app for a growing service business—jobs, teams, and invoices in one plain-language UI.
Live in 6 weeksView case
From the desk
Blog
Notes on shipping AI and ML systems — cost, timelines, delivery, and the trade-offs behind them.
When a growing business actually needs a CTO
Not every company needs a full-time tech lead. Here’s how we decide when fractional leadership fits — and when it doesn’t.
Read articleShipping software with local businesses without the chaos
A clear brief, weekly demos, and one owner for decisions. The working rhythm we use so builds stay on time and on budget.
Read articlePractical AI for clinics and retail — not another chatbot pitch
From session notes to inventory alerts: where AI saves real hours for teams that already have enough tools.
Read article
FAQ
Questions clients ask us
Working with a Sri Lanka–based software team from the US, UK, the Gulf or anywhere else — the short answers.
Where is Revwald based?
Revwald (Private) Ltd. is a software company based in Sri Lanka, with its office in Wattala near Colombo. Our engineering team works from Sri Lanka and serves clients internationally.
Which countries does Revwald work with?
Our main markets are the United States, the United Kingdom and the Gulf — including the UAE, Saudi Arabia, Qatar, Kuwait, Bahrain and Oman. We also work with clients in other regions worldwide, as well as businesses in Sri Lanka.
How do time zones work with a Sri Lankan team?
Sri Lanka is GMT+5:30. Our 9:00 AM–6:00 PM working day almost fully overlaps Gulf business hours, shares the afternoon with the United Kingdom, and gives United States teams a daily follow-the-sun handoff — work moves forward while you sleep.
What does Revwald build?
AI and machine-learning systems — LLM apps, agents, RAG knowledge assistants and forecasting models — plus the custom software and SaaS platforms around them. We also offer fractional CTO leadership, UX design and digital marketing.
How does an engagement with Revwald start?
With a short discovery call, then a scoped plan and a fixed price for phase one. Most builds begin with a 2–4 week proof of concept against your real data, so you can make a go / no-go decision before the main build.
Why hire a software company in Sri Lanka?
You get senior engineers, working hours that overlap your team, on-site visits for key milestones, and a cost structure that funds a proof of concept before the main build — with one accountable owner on every engagement.
Does Revwald have ready-made products?
Yes. Four product accelerators — ZekiSales (retail ERP & POS), Cogni Arkiv (regulated records), Heilarc (specialist channeling) and RostLoop (garage management) — can be licensed and tailored, which cuts months off delivery.