An engineering firm — not a transformation slide deck.

We build billing and operations platforms, deploy private AI that never leaves your network, and ship the iOS, Android, and ops apps your teams actually open. ISAE 3402 and SOC 2 certified.

2014
Started in telecom
10+
Years shipping cloud-native BSS/OSS
24/7
Managed Service & Support Operations
100+
Major projects delivered worldwide
About Us

Platforms, private AI, and the apps in between

Promon started in telecom. We still live in billing, catalog, CRM, and order management — and we take that same rigor to private AI and the architecture around them, in any industry that cannot leak data or miss a bill run. 24/7 operations when you need them.

Our Purpose
Our Purpose

Why teams hire us

Our Mission

Help teams launch offers, bill accurately, and keep production up — without sending customer or billing data off-net.

→ Billing platforms, private AI on your premises, and applications your teams will actually use.

Our Manifesto

How we work

Standardisation

Adhering to TM Forum Open APIs so catalogs, orders, and care stay connected.

Automation

Reducing manual effort and enabling rapid rollout.

Time-to-Market

Launch your offers in weeks, not months.

Joint Success

Stay on the program after go-live — same team, same SLAs.

Culture

Engineers who stay after go-live — not a rotating bench.

Meet the Team

The people who stay after go-live

BSS, billing, DevOps, private AI, and product — the same names you will see after go-live.

Sumathi Subramaniam

Sumathi Subramaniam

Co-Founder

Vision Driven. People Powered.

Sathish Mariappan

Sathish Mariappan

Co-Founder

Customer Focused. Coffee Fueled.

Siva Prasad

Siva Prasad

Operations Manager & Solution Architect

Turning chaos into architecture since day one.

Pandi Koothan

Pandi Koothan

DevOps Lead

Automating Everything. Breaking Nothing.