Paubox
About
Paubox provides HIPAA compliant email security software for healthcare organizations, including email encryption, AI-powered inbound threat protection, email marketing, and patient intake forms. Their products integrate with Google Workspace and Microsoft 365 to automatically encrypt all outbound email without requiring additional steps from senders or recipients. They serve 9,000+ healthcare organizations across the United States.
Details
Website
paubox.comOfferings
8 active
VenSearch Intelligence
Ideal Customer
- Paubox's sweet spot is small to mid-sized healthcare organizations — including independent medical practices, behavioral health clinics, mental health providers, pediatric offices, telehealth companies, and community health systems — that use Google Workspace or Microsoft 365 and need HIPAA-compliant email without adding operational complexity.
- The majority of tracked customer deployments fall in the 0–249 employee range, with the largest concentration in the 0–9 and 20–49 employee segments.
Key Differentiators
- Paubox's primary differentiator is its default-on, frictionless encryption model: every outbound email is automatically encrypted without requiring the sender to take any action or the recipient to log into a portal, enter a password, or install a plugin — a significant departure from legacy encrypted email solutions.
- It is self-described as the only HIPAA-compliant email provider to have achieved HITRUST CSF Certification for its email product, and it claims an industry-leading 4.9/5 star rating on G2.
Industries Served
- Paubox is purpose-built for the healthcare industry and is specifically positioned as the market leader in HIPAA-compliant email for healthcare organizations, including hospitals, health systems, physician clinics, mental health facilities, telehealth providers, and other covered entities.
- The company also serves adjacent regulated industries including insurance and education, where email compliance and PHI-handling requirements are relevant.
Service Coverage
- Paubox is headquartered in San Francisco, California and operates primarily as a U.S.-focused SaaS platform, with all data processed and stored in AWS data centers located within the United States.
- The company's core market is U.S. healthcare, with customers reported across all 50 states.
Partnerships
- Paubox's primary technology integrations are with Google Workspace and Microsoft 365 (including Microsoft Exchange), which serve as the foundational email platforms through which Paubox layers its encryption, security, and compliance capabilities — deployable in under 30 minutes with no workflow disruption.
- The platform also integrates with Salesforce for direct email sending, and offers REST API and SMTP relay connectivity for custom healthcare application integrations.
Company Size & Ownership
- Paubox was founded in 2014–2015 by Hoala Greevy and is a small but growing company, with current employee counts estimated between 43 and 54 across multiple data sources.
- Estimated annual revenue ranges from approximately $10 million to $25 million across various third-party aggregators.
Compliance & Certifications
- Paubox holds HITRUST CSF Certification for its core products, which it has maintained since 2019 and renewed through at least 2027.
- HITRUST CSF certification requires independent third-party assessment against a comprehensive framework mapped to HIPAA and other regulatory requirements, and Paubox claims to be the only HIPAA-compliant email provider to have achieved this certification for its email solution.
Compiled from public sources by VenSearch · Last researched October 14, 2026
Offerings
8 offeringsData Loss Prevention
Included with Paubox Email Suite Premium, this product automatically scans outbound emails and attachments to detect and block unauthorized transmission of sensitive data such as PHI. Administrators can customize scanning criteria, enforce company data policies, quarantine potential leaks, and receive DLP activity alerts to prevent accidental or malicious data breaches.
Email Archiving
A HIPAA compliant email archiving solution that provides secure storage, fast retrieval, and comprehensive search capabilities for emails to support compliance audits, eDiscovery, and incident response. Designed to help healthcare organizations meet federal and organizational email retention requirements.
Inbound Email Security
AI-powered inbound email threat protection that uses generative AI to analyze sender behavior, tone, and message intent to detect and stop phishing, business email compromise, spoofing, and ransomware attacks before they reach the inbox. Features include behavioral geofencing, ExecProtect+ for executive impersonation prevention, customizable filtering rules, and quarantine management. Stops over 1 million attacks per month for healthcare organizations.
Paubox Email API
A HIPAA compliant transactional email API for healthcare application developers that supports sending single messages, bulk messages, templated messages, and file attachments over a REST API or SMTP relay. Includes official SDKs for Node.js, Ruby, Rails, Python, C#, Java, PHP, Perl, Go, and Rust, as well as a Model Context Protocol (MCP) server to allow AI agents like Claude to send HIPAA compliant email. Every plan includes a signed Business Associate Agreement and TLS 1.2+ encryption.
Paubox Email Suite
A HIPAA compliant email encryption solution that integrates natively with Google Workspace and Microsoft 365 to automatically encrypt every outbound email by default using TLS 1.2+ and AES encryption. Recipients read messages directly in their inbox with no portal login, passwords, or plugins required. Includes a Business Associate Agreement and HITRUST certification.
Paubox Forms
A HIPAA compliant patient data collection form builder included free with every paid Paubox subscription. Users can build forms using 13 pre-built healthcare templates, by uploading an existing fillable PDF for automatic field mapping, via an AI building tool, or from scratch using a drag-and-drop canvas. Supports conditional logic, e-signatures with timestamps, file uploads up to 250 MB, and API access for developers.
Paubox Marketing
A HIPAA compliant email marketing platform built specifically for healthcare organizations that allows users to build, send, and track personalized email campaigns containing protected health information such as patient names, prescriptions, and treatments. Features a drag-and-drop design builder, dynamic content personalization, static and dynamic contact lists, and real-time analytics reporting. The first 100 contacts are free.
Security Awareness Training
A phishing simulation and security awareness training tool that lets organizations run realistic phishing simulations on an unpredictable schedule using six built-in phishing scenarios, including Microsoft login resets, DocuSign notifications, and package deliveries, with the ability to generate AI variations. Tracks who opened, clicked, or entered credentials, and maintains six-year audit logs to satisfy HIPAA's required security awareness and training program requirements.
Considering Paubox?
Our team will work with you to determine if Paubox is the right fit for your organization. From research and assessment through procurement negotiation and ongoing vendor management — we handle the entire process at no cost to you.