# The Customer Communication Stack

> A look at the six software companies that quietly run how businesses talk to their customers and turn those conversations into paperwork. Braze, Iterable and Twilio move the messages - email, push, SMS, WhatsApp, voice. Plumsail, Experlogix and Newgen move the documents - forms, contracts, PDFs and the workflows behind them. Together they form an invisible layer most people never notice but touch every day: the welcome email, the one-time passcode, the signed quote, the onboarding form.

## Achievements

- Twilio reported roughly $5.07B in revenue (2025) and made 'communications as an API' a standard building block.
- Braze reached about $593M in revenue and around 2,300 customers by 2024, and trades publicly as BRZE.
- Iterable raised over $340M and reached a reported valuation near $2B as an enterprise cross-channel platform.
- Newgen serves 500+ customers across 70+ countries and has filed dozens of patents in content and process automation.
- Plumsail became a go-to document-generation and forms layer for Microsoft 365, SharePoint and Power Automate.
- Experlogix Document Automation ships out-of-the-box connectors and REST APIs for Dynamics 365, Salesforce and Power Platform.

## Latest updates

- **2025-01** — Newgen introduced Marvin, a generative-AI enhancement to its NewgenONE low-code platform for faster app building and content automation.
- **2025-06** — Twilio's trailing revenue reported around $5.07B, cementing CPaaS as core infrastructure.
- **2024-12** — Braze reported roughly $593M in revenue with about 2,300 customers as cross-channel engagement scaled.

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Published by YesPress — https://yespress.io
Last updated: 2026-08-07