We love founders.

Numberline is a virtual phone system for small businesses. We build the phone infrastructure founders grow on, so they can focus on their business and leave the phone system to us.

Who we are
Founders and engineers who have served hundreds of thousands of small businesses at earlier companies.
Headquarters
Henderson, Nevada.
What we build
Phone infrastructure for small businesses: business numbers, call routing, texts, and voicemail.
Who we serve
Founders and small businesses, from solo founders to growing companies.

Why we started Numberline.

Large companies have always had reliable phone systems, real support, and tools that connect to everything they run. Founders and small businesses got the same systems with features removed and per-user pricing left in.

We started Numberline to give founders that quality from their first call. Everything we build starts with one idea: we love founders.

No customer is too small.

Our promise is to support founders and help them grow their companies. We treat every customer the same, whether you’re a solo founder just starting out or a growing company with advanced needs.

How we show our love for founders.

No per-user pricing
Every customer gets unlimited users, so the whole team can answer calls and texts. The plan price stays the same as the team grows.
Free, unlimited support
A real person helps any time of day, as often as you need, at no extra cost. Founders big and small get the same support.

What Numberline does.

Numberline gives a business a complete phone system on the phones its team already uses: a local or toll-free number, a greeting with extensions, call forwarding, business texting and WhatsApp in a shared inbox, and voicemail emailed with the recording, a transcript, and a summary. It connects to Slack, a CRM, and AI agents from the provider a business chooses.

See how Numberline works →

Phone infrastructure, built right from the beginning.

A phone system has to work every time a customer calls. We take on the work a phone company is responsible for, so the businesses we serve never have to think about it.

Numbers and porting
We provide local and toll-free numbers, and we handle the transfer when you bring your existing number. Porting is free.
Independent routing
Call forwarding runs separately from the app and dashboard, so calls still reach your phones if the app is unavailable.
Carrier registration
We register business texting with carriers and messaging registries, and texts send once carriers approve it.
Continuous monitoring
We monitor calls, message delivery, and voicemail processing.
Accountable support
Every issue has a person at Numberline who owns it until it is solved, with updates by email.

The team behind Numberline.

Numberline is built by founders and engineers who have served hundreds of thousands of small businesses at earlier companies. We’re headquartered in Henderson, Nevada, and our team works from several locations.

From the team featured in
CNBCCNNForbesInc.The New York TimesThe Wall Street JournalTechCrunchEntrepreneurLos Angeles TimesThe Boston GlobeFox Business

Get your business phone system.

Unlimited users, with no per-user fees.

Get my number
No per-user pricing 24/7 human support No long-term contracts