Top 5 SMS Marketing Software Companies $100M+ Revenue (August 2026)

London, England, United Kingdom

Infobip is a global leader in omnichannel engagement, offering a wide array of messaging channels and tools for advanced customer engagement, authentication, and security. We simplify complex consumer communications to help clients grow their business and enhance customer experiences quickly, securely, and reliably. As a quality-driven engineering powerhouse, we’ve grown over 15 years to include 70+ offices across six continents with over 3,700 experts. We’re committed to innovation, developing all our solutions in-house, and are proud of our talented team. Our approach is rooted in learning by doing, driven by a passion for technology.

Amsterdam, North Holland, Netherlands

a cloud communications platform to communicate with customers through various channels such as SMS, voice, chat, and email.

San Francisco, California, United States

the leading conversational messaging platform

New York, New York, United States

a personalized mobile messaging platform for innovative brands & organizations

Portland, Oregon, United States

Customer.io is a SaaS messaging and marketing automation platform founded in April 2012 by Colin Nederkoorn and a co-founder he met while working in New York. The company enables businesses to send targeted emails and other messages based on user behavior, with the original product focused on converting free users to paid customers through trigger-based messaging. Twelve years after founding, the company has grown well beyond its initial goal of five paying customers at $10 per month each. Nederkoorn described the company's growth arc in a September 2024 talk, noting that Customer.io reached $1 million in ARR by 2014 and continued scaling through the $1 million to $10 million range by refining its core product rather than reinventing it. The company has since grown to a team of approximately 250 people and maintains a customer success team of roughly 35 customer success managers. One of the company's original five founding customers from 2012 remains active today and has generated more than $100,000 in lifetime value. The company operates as a bootstrapped or lightly funded business, with Nederkoorn emphasizing a deliberate preference for reaching cash-flow breakeven rather than relying on investor capital. A formal board was not established until 2017, five years after founding, and the company has since built out a full executive team including a Chief Revenue Officer and a Chief Marketing Officer.