Paubox
Paubox provides HIPAA-compliant encrypted email and AI-powered inbound threat protection for healthcare organizations. Serving 8,000+ U.S. healthcare customers, the platform integrates natively with Google Workspace and Microsoft 365 and secures more than 70 million emails monthly.
- Company typePrivate
- Founded2015
- HeadquartersSan Francisco, United States
- Headcount11–50
- GTM typeB2B
- OfferingSoftware
What Paubox does
Paubox is a healthcare-focused email security company that provides HIPAA-compliant encrypted email and inbound threat protection for healthcare organizations. Founded in 2015 and headquartered in San Francisco, the company serves more than 8,000 healthcare organizations across the United States, securing over 70 million emails monthly. Its platform is purpose-built to address the regulatory requirements of HIPAA and HITECH while eliminating the recipient friction typically associated with secure email portals, enabling encrypted communication without requiring end recipients to log in to a separate gateway.
The product portfolio centers on the Paubox Email Suite, which integrates natively with Google Workspace and Microsoft 365 to provide automatic outbound email encryption. Adjacent modules include AI-powered Inbound Email Security (using generative AI to analyze tone, sender behavior, and message intent for phishing detection), Data Loss Prevention, Email Archiving, Paubox Marketing, Paubox Forms, and a developer-facing Paubox Email API. The platform runs on Amazon Web Services, leveraging ISO 27001, SOC 1/2/3, FedRAMP, and HIPAA-eligible infrastructure. Paubox holds HITRUST CSF Certified status for its Email Suite tiers, Email API, and Marketing product, and was the first HIPAA-compliant email provider to achieve this designation.
Paubox operates a hybrid go-to-market model combining self-serve product-led growth (with free trials) for smaller healthcare organizations and a sales-assisted motion for mid-market and enterprise accounts. Pricing follows a per-user-per-month SaaS subscription model with tiered Standard, Plus, and Premium plans in the $6–$15 per user per month range based on third-party market research, with 30% discounts on annual commitments; enterprise pricing is quote-based. The company also operates referral ($250 per successful referral) and badge ($100) programs to drive SMB acquisition. Total disclosed funding stands at approximately $14.8 million across five rounds, with the most recent being a $10 million investment from Arthur Ventures in August 2022.
Paubox firmographics
Firmographics- Name
- Paubox
- Legal name
- Paubox, Inc.
- Website
- https://paubox.com
- Company type
- Private
- Founded year
- 2015
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Paubox provides HIPAA-compliant encrypted email and AI-powered inbound threat protection for healthcare organizations. Serving 8,000+ U.S. healthcare customers, the platform integrates natively with Google Workspace and Microsoft 365 and secures more than 70 million emails monthly.
- Ownership category
- akta.pro rank
Paubox industry classification
Industry- Product category
- Healthcare Email Security
- akta.pro primary industry
- Email Authentication & Domain Protection (DMARC/SPF/DKIM) (HDADAKAC)
Keywords
Where Paubox is headquartered
LocationHeadquarters
- HQ city
- San Francisco
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
Paubox business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Personnel, Technology or R&D, Marketing or Sales, Operations, Infrastructure
Revenue model
- SaaS Subscription (Paubox Email Suite): Recurring subscription revenue from Paubox Email Suite with tiered pricing (Standard, Plus, Premium). Customers pay monthly or annually for access to encrypted email, inbound security, and additional features. Annual plans offer 30% discount, driving subscription longevity and customer retention.
- Paubox Email API: Transactional email service for application developers, providing HIPAA compliant email delivery for healthcare applications on a usage or subscription basis.
- Paubox Marketing: HIPAA compliant email marketing platform subscription for healthcare organizations to run compliant marketing campaigns.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Monthly | Paubox Email Suite with tiered plans (Standard, Plus, Premium) for healthcare organizations |
| Subscription | Annual | Enterprise pricing for larger healthcare organizations |
Go-to-market motion2 records
Distribution channels4 records
Marketing channels7 records
Paubox product offering
Product offeringCore offering
Paubox provides HIPAA compliant email encryption and AI-powered inbound email security for healthcare organizations. Its core platform, the Paubox Email Suite, integrates natively with Google Workspace and Microsoft 365 to automatically encrypt all outgoing emails without requiring recipients to log into portals. The company extends its offering through add-on modules for inbound threat detection, data loss prevention, email archiving, HIPAA compliant marketing, intake forms, and a developer-facing transactional email API, all covered under a unified Business Associate Agreement.
Product overview
Paubox is a healthcare-focused secure email platform offering a unified product portfolio built around HIPAA compliance. The core product is Paubox Email Suite, which provides automatic email encryption integrated natively with Google Workspace and Microsoft 365. The platform extends through add-on modules including Inbound Email Security (AI-powered threat detection), Data Loss Prevention (DLP), Email Archiving, Paubox Marketing (campaign management), Paubox Forms (intake forms), and Paubox Email API (developer integration). All products are designed for the healthcare industry and are covered under a unified Business Associate Agreement (BAA) with HITRUST CSF certification across the product suite.
Differentiator
Problem solved
Functional benefit
Products and services
- Paubox Email Suite Core email encryption platform that enables HIPAA compliant email for Google Workspace and Microsoft 365 environments. Automatically encrypts every outgoing email without requiring senders or recipients to log into portals, supporting Standard, Plus, and Premium tiers.
- Inbound Email Security AI-powered email threat protection using generative AI to detect sophisticated phishing attempts, spam, and malicious emails by analyzing behavior, tone, and anomalies in real time. Included in Paubox Email Suite Plus and Premium tiers.
- Data Loss Prevention (DLP) Email data loss prevention solution that safeguards against data loss caused by human error, protecting sensitive information (including PHI) from being sent outside the organization.
- Email Archiving Email preservation solution for compliance audits, allowing healthcare organizations to retain and retrieve email communications to meet regulatory requirements.
- Paubox Marketing HIPAA compliant email marketing platform enabling healthcare organizations to build, send, and track email campaigns to patient and subscriber audiences.
- Paubox Email API Transactional email API for application developers, enabling HIPAA compliant email sending integrated directly into healthcare applications and software, with documentation at docs.paubox.com.
- Paubox Forms HIPAA compliant intake forms enabling healthcare organizations to collect patient information through secure web forms.
Quantifiable outcome
- Stops 1 million attacks monthly
- +4 more outcomes
Companies that use Paubox
Customer profileNamed customers7 records
Segments6 records
Ideal customer profiles3 records
Paubox technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- Yes
- API docs
- API detail
Core technology
AI maturity
App detail
Integration3 records
AI capability4 records
Feature7 records
Paubox partnerships and signals
Strategic signalPartnerships
Two partnerships are on record, tiered core.
- Steel Patriot PartnerscoreCo-hosted industry dinner with 16 healthcare IT professionals including healthcare CEOs, security experts, finance executives, and entrepreneurs in San Francisco. Discussed AI tools in healthcare, automation for compliance, and ROI of AI and compliance tools.
- Amazon Web Services (AWS)coreAWS serves as Paubox's HIPAA compliant cloud platform, providing industry-recognized certifications and audits including ISO 27001, FedRAMP, SOC1, SOC2, and SOC3. AWS platform meets GDPR requirements and provides the infrastructure foundation for Paubox's services.
Scale indicators9 records
Recent moves6 records
Expansion highlights5 records
Paubox competitors and assessment
Company assessmentDirect peers
- IRONSCALES: AI-powered email security and phishing protection vendor; its self-learning platform competes directly with Paubox's generative-AI Inbound Email Security.
- Virtru: Direct competitor offering email and data encryption with HIPAA/FedRAMP capabilities, frequently compared to Paubox in healthcare and government email-security procurements.
- LuxSci: Long-standing HIPAA-compliant secure email hosting and encryption provider serving healthcare organizations with a comparable feature set around encrypted email and PHI protection.
- NeoCertified: Direct competitor providing HIPAA-compliant encrypted email solutions targeting healthcare providers and business associates, with comparable portal-based and direct-delivery options.
- Hushmail: Encrypted email service with explicit HIPAA-compliant offerings for healthcare practices (e.g., Hushmail for Healthcare), overlapping Paubox's core SMB and small-practice segment.
Broad incumbents
- Proofpoint: Large enterprise email security and compliance vendor whose secure email gateway, encryption, and threat-protection products compete head-on with Paubox in the mid-market and large health-system segments.
- Mimecast: Established email security vendor offering encryption, archiving, and threat protection, competing with Paubox's Email Suite, DLP, and Archiving modules in healthcare accounts.
- TitanHQ: SMB-focused email security vendor (SpamTitan, ArcTitan, EncryptTitan) competing with Paubox's PLG and inside-sales motion for smaller healthcare practices.
- Egress (a KnowBe4 company): Intelligent email security (encryption, DLP, anti-phishing) vendor, now part of KnowBe4, overlapping with Paubox's Email Suite, DLP, and Inbound Security offerings in healthcare and other regulated industries.
Emerging players
- Abnormal Security: AI-native email security platform focused on advanced threats and account takeover; overlaps with Paubox's generative-AI inbound security positioning and is increasingly cited by healthcare CISOs.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Paubox social profiles
Digital presencePaubox compliance and trust
Trust signalCompliance5 records
Paubox financial estimates
Financial estimateRevenue estimate
Valuation estimate
Paubox leadership team
Management profileNumber of profiles
Profiles3 records
Paubox funding detail
Funding detailFunding overview
Funding rounds5 records
Investors2 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Paubox M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Paubox
What does Paubox do?
Paubox provides HIPAA compliant email encryption and AI-powered inbound email security for healthcare organizations. Its core platform, the Paubox Email Suite, integrates natively with Google Workspace and Microsoft 365 to automatically encrypt all outgoing emails without requiring recipients to log into portals. The company extends its offering through add-on modules for inbound threat detection, data loss prevention, email archiving, HIPAA compliant marketing, intake forms, and a developer-facing transactional email API, all covered under a unified Business Associate Agreement.
Is Paubox a public or private company?
Paubox is a private company. It is classified as venture growth investor backed and is currently operating.
When was Paubox founded?
Paubox was founded in 2015. It employs 11 to 50 people.
Where is Paubox based?
Paubox is headquartered in San Francisco, United States, in the North America region.
How does Paubox make money?
Three revenue lines are on record. SaaS Subscription (Paubox Email Suite) is the primary driver. The others are paubox Email API and paubox Marketing.
Who are Paubox's main competitors?
Direct peers on record are IRONSCALES, Virtru, LuxSci, NeoCertified and Hushmail. Broad incumbents are Proofpoint, Mimecast, TitanHQ and Egress (a KnowBe4 company). Abnormal Security is listed as an emerging player.
Does Paubox have an API?
Yes. Paubox Email API enables HIPAA compliant transactional email for app developers. The API allows developers to integrate secure email sending capabilities into their applications. Developer documentation is at docs.paubox.com.
What industry is Paubox in?
Paubox's product category is Healthcare Email Security. Its primary akta.pro industry code is HDADAKAC, Email Authentication & Domain Protection (DMARC/SPF/DKIM).