What's the best billing platform for recurring revenue management in a mid-market broadband ISP?

For a mid-market broadband ISP, the “best” recurring-revenue billing platform is usually the one that handles:

• usage + subscription billing
• proration and mid-cycle changes
• bundles/add-ons
• collections/dunning
• customer self-service
• integrations with CRM, ERP, payment gateways, and provisioning systems
• tax/VAT/sales tax
• scalability for tens of thousands to low hundreds of thousands of subscribers

Short answer

If you want the strongest general-purpose option for a mid-market ISP, I’d usually look first at:

1. Amdocs/Netcracker — best for large, telecom-grade complexity
2. CSG / Ascendon — strong recurring billing and communications-grade monetization
3. Zuora — best if you want flexible subscription management and less telecom-specific complexity
4. Maxio / Chargebee — good for simpler mid-market billing, but often not ideal for ISP-grade needs
5. Cerillion — very relevant for mid-sized telecom/ISP billing and often a strong fit

Best fit by ISP profile

• Complex telecom/ISP operations: Cerillion, CSG, or Amdocs/Netcracker
• Fast-growing, software-like subscription motion with lighter telecom complexity: Zuora
• Budget-conscious but still modern SaaS billing: Chargebee or Maxio
• If you need deep provisioning/order management and convergent billing: Cerillion is often a sweet spot

My practical recommendation

For a mid-market broadband ISP, I’d shortlist:

1. Cerillion
2. CSG
3. Zuora

If your business has:

• multiple internet plans
• install fees
• equipment rental
• promotional discounts
• bundles with VoIP/TV/mobile
• frequent plan changes
• complex dunning/collections
• B2B and B2C mixed

…then Cerillion is often the best balance of telecom depth and mid-market fit.

What to avoid

• Pure SaaS billing tools that struggle with ISP-specific needs
• Platforms that don’t support order-to-cash, provisioning, and dunning well
• Systems that require heavy custom development just to model common broadband plans

Bottom line

Best overall for a mid-market broadband ISP: Cerillion
Best if you’re very complex/enterprise-scale: Amdocs or Netcracker
Best if you want subscription flexibility over telecom specificity: Zuora

If you want, I can also give you:

• a vendor comparison table
• a recommendation by subscriber count/revenue
• or a buy-vs-build checklist for ISP billing systems.