COS Systems — BSS/OSS Software for Broadband Operators and Open Access Networks

From demand and sales to provisioning, billing, and field operations — all in one platform.

Stop juggling disconnected systems. COS automates fiber network operations on a complete, API-first BSS/OSS platform. Across COS Business Engine, COS Wholesale Engine, COS FSM, COS Prospector and COS Fiber Flow, everything works together to support the full lifecycle of fiber services.

The result is a single, automated flow to sell, deliver, and support fiber at scale — whether you operate as a traditional ISP or run an Open Access or shared infrastructure network.

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Five products for fiber network operations

Each product runs on its own and integrates with the others. You do not replace your system landscape to start.

COS Business Engine

The operating core. Runs the full subscriber lifecycle for retail, open access, or hybrid networks.

COS Wholesale Engine

The wholesale layer between your network and the ISPs that sell on it. No subscriber migrated, no billing stack replaced.

COS FSM

Field service across multiple ISPs, contractors and brands in one coordinated operation. Skill-based scheduling, subscriber booking, route optimisation.

COS Prospector

Map-based field sales. Qualify addresses, show build zones, sign subscribers at the door.

COS Fiber Flow

A different core, for open networks running Active Ethernet. One system of record, plus automations you build yourself.

Capabilities across the network lifecycle

Across all of it: APIs and integrations.

Which COS products do you need?

Which COS products do I need to build and sell a new network?

COS Prospector qualifies addresses and signs subscribers in the field. COS Business Engine activates and bills them. COS FSM schedules the installation.

Which COS products do I need to run open access with multiple ISPs?

COS Business Engine is the operating core. Add COS Wholesale Engine when several ISPs sell on your network and keep their own billing, brand and subscribers.

Which COS products do I need after acquiring networks?

COS Wholesale Engine runs service locations, provisioning, tickets and wholesale settlement across every network and every retailer, without migrating subscribers.

Read the ISP consolidation whitepaper →

Which COS products do I need to bring operations back in-house?

COS Fiber Flow is the core for open networks on Active Ethernet. COS Business Engine is the core where you run the full subscriber lifecycle yourself.

Operators COS Systems is built for

Municipalities and Utilities

Cities, counties and utilities building fiber for their communities, usually open access.

Open Access Network Operators

Neutral host operators selling wholesale access to multiple ISPs on shared fiber.

Internet Service Providers (ISPs)

Retail ISPs serving subscribers on their own or third-party fiber.

Wholesale Fiber Carriers

Infrastructure owners selling access to multiple ISPs, with wholesale billing and revenue assurance.

Hybrid Retail and Wholesale Operators

Operators running retail service and wholesale open access on the same network.

Managed Service Providers

Partners operating fiber networks on behalf of municipalities and infrastructure owners.

COS unifies everything you need to operate and scale — from sales and provisioning to billing, wholesale, support, and field operations.

  • Eliminate system sprawl with an integrated BSS/OSS for ISP, wholesale, and Open Access models
  • Automate operational workflows to cut costs and speed up delivery
  • Grow revenue with multi-provider marketplaces and flexible wholesale billing
  • Integrate anything through our modern API-first architecture
  • Delight customers through a branded customer portal and self-service tools
  • Optimize field work with intelligent scheduling, dispatch, and technician tools (COS FSM)

Our Mission

To bridge the digital divide

COS Systems’ story is best told by sharing our goals and aspirations – the driving force behind our work. We aim to develop software that enables operators to deliver affordable broadband connections to everyone via fiber by using  the power of automation and the Open Access business model.

Get to know us

COS SYSTEMS

Nearly two decades of experience building and operating fiber networks

ISO 27001

certified in 2026, passed at first attempt

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continents: customers in North America, Europe and Africa

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business models supported directly: retail, open access and hybrid

Tier 1 retail service providers sell on fiber networks running COS Wholesale Engine.