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Bandwidth sells the software and network connections that let other companies make phone calls and send text messages from their own apps.
Bandwidth is a plumbing company for the internet age, except the pipes carry phone calls and text messages instead of water. When you tap "call" in a ride-hailing app, get a two-factor code by text, or reach a customer support line, there's a decent chance Bandwidth's network is quietly moving that call or message behind the scenes. The company sells software tools and direct connections to phone networks so developers can build calling and messaging into their own products without wrangling telecom giants themselves.
Its business rests on two main pieces. One is a set of software tools, called APIs, that let a programmer add a phone call or a text to an app with a few lines of code. The other is a network of its own that connects directly to carriers, plus number management so a company can own and route phone numbers. Customers pay based on usage, so every minute talked and every message sent throws off a small fee. That usage-based model means revenue rises and falls with how much its customers' own products get used. The customers are mostly businesses that treat communications as a feature, not the product: cloud contact centers, healthcare and telehealth services, messaging platforms, and apps that verify users by text. Bandwidth's pitch is that going direct to its own network saves money and gives more control than reselling someone else's pipes, a market where it competes with larger communications platforms like Twilio and with the cloud giants that also sell messaging and calling tools, such as Amazon through its web services arm.
In 1999, David Morken started Bandwidth in his spare bedroom selling internet service to businesses. That was a crowded, low-margin business, and the real lesson came later: reselling someone else's pipes means you're at their mercy. So the company began turning itself into something different — a platform that other companies could plug into by code to make phone calls and send messages.
The turning point came when Google signed on as a big customer and needed a serious voice network. Bandwidth built its own, an all-IP network spanning the country, and owning those pipes became its crown jewel. Rebuilding that network would later take more than fifteen years and over half a billion dollars — which tells you how hard it is to copy.
In 2017 Bandwidth sold shares to the public, raising $80 million and planting its flag as a leader in the business of letting companies add calling and texting into their apps through simple code. Public money meant room to grow — and a new set of eyes watching every quarter.
The stock soared in 2019 as investors fell in love with its business, then gave back roughly a third of that gain when guidance pointed to slower growth ahead. The market had priced in a rocket ship; the company delivered a solid car. That gap would become a recurring theme.
Bandwidth spent about $527 million to buy Belgium-based Voxbone, instantly stretching its reach into more than 60 countries. The deal became the foundation of its global strategy and helped land major customers — a bet on being everywhere instead of just at home.
By 2023 the company was guiding for barely any revenue growth, and the stock fell nearly 27% in response. Morken's answer was to cut costs and chase profitability while vowing to avoid layoffs — a sign the easy growth era was over.
Same year, Bandwidth launched Maestro, an AI-powered layer that coordinates communications across channels, and shifted its aim toward large enterprises and hyperscalers. Chasing big customers meant walking away from lots of small, low-margin accounts — fewer clients, bigger bets.
Then came the reveal: record quarterly revenue of $234 million, up 22%, and a deepened Salesforce partnership making Bandwidth the first certified carrier supporting Salesforce's native contact center worldwide. Management now sees the owned network as the groundwork for AI voice agents and expects Salesforce to possibly become its biggest customer by 2028 — while the company signed 11 deals worth over $1 million a year, double the prior year's count.
The company has grown fast but has struggled to turn that growth into steady profit, posting losses in recent years as it spent heavily to build out its network and chase bigger enterprise deals. It's headquartered in Raleigh, North Carolina, a detail that helps explain its roots as a telecom upstart rather than a Silicon Valley software firm. The core question for investors is whether Bandwidth can keep winning larger customers and finally convert its usage growth into consistent cash, or whether the bigger platforms will squeeze it on price. Its fortunes ultimately ride on one simple thing: how many calls and texts the world's apps keep sending.
Saved answer · last researched 30 Oct 2026