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Paubox

HIPAA-compliant email encryption for healthcare

Overview

Paubox provides HIPAA-compliant email encryption tailored for healthcare providers. It offers a subscription-based service that integrates with existing email platforms to securely transmit patient information, protecting PHI during sending and storage. The product works by embedding secure encryption and compliance features directly into users’ email flow, so recipients can receive encrypted emails without extra steps. Paubox differentiates itself by focusing specifically on healthcare compliance, offering tiered security features, and maintaining strict security standards to simplify secure communication for clinicians. Its goal is to become the market leader in HIPAA-compliant healthcare communication by continuously improving its security posture and expanding its product offerings.

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About Paubox

Simplify's Rating
Why Paubox is rated
B-
Rated B on Competitive Edge
Rated B on Growth Potential
Rated C on Differentiation

Industries

Enterprise SoftwareCybersecurityHealthcare

Company Size

11-50

Company Stage

Series B

Total Funding

$14.8M

Headquarters

San Francisco, California

Founded

2015

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Simplify's Take

What believers are saying

  • October 2, 2026 Security Awareness Training added phishing simulations inside Email Suite.
  • September 1, 2026 MCP forms opened HIPAA-compliant patient intake to AI agents.
  • Paubox reports 8,000-plus customers, including Cost Plus Drugs, Rippling, and Covenant Health.

What critics are saying

  • Revelio Labs counted only 45 employees in March 2026, down 22.7%.
  • Zero active job postings in 2026 signal stalled hiring and constrained execution.
  • Microsoft can commoditize HIPAA email, making Paubox a feature, not a company.

What makes Paubox unique

  • Paubox encrypts outbound email by default inside Google Workspace and Microsoft 365.
  • HITRUST certification and HIPAA workflows anchor its healthcare-only compliance positioning.
  • G2 Fall 2026 ranked Paubox #1 in 49 reports across nine categories.

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Funding

Total Funding

$14.8M

Below

Industry Average

Funded Over

5 Rounds

Series B funding is typically for startups that have proven their business model and need more funding to expand rapidly—often by entering new markets or adding more products. Investors are usually venture capital firms that specialize in later-stage investments.
Series B Funding Comparison
Below Average

Industry standards

$35M
$30M
$45M
$65M
$100M

Benefits

  • Remote Work Options
  • Health Insurance
  • Dental Insurance
  • Vision Insurance
  • 401(k) Retirement Plan
  • Paid Vacation
  • Paid Sick Leave
  • Paid Holidays
  • Stock Options
  • Professional Development Budget

Growth & Insights and Company News

Headcount

6 month growth

-7%

1 year growth

-4%

2 year growth

0%
Yahoo Finance
Oct 2nd, 2026
Paubox launches phishing simulation tool as 85% of healthcare IT leaders cite employee negligence as top email security risk

Paubox, a HIPAA-compliant email security provider, has launched Security Awareness Training, a phishing simulation product integrated into its Email Suite. The tool enables IT and compliance administrators to identify which employees opened, clicked, or entered credentials on simulated phishing emails. The launch follows Paubox research showing 85% of healthcare IT leaders consider employee negligence a top email security risk. The product assigns employees Low, Medium, or High risk scores and includes built-in phishing scenarios that can be sent as written or generated using AI variations. All simulations require human review before sending. Security Awareness Training helps organisations meet HIPAA Security Rule requirements by maintaining campaign history and six-year audit logs. The product operates from the existing Paubox Email Suite dashboard, eliminating the need for separate logins or employee roster management. Paubox serves over 9,000 organisations and holds HITRUST certification.

Yahoo Finance
Sep 3rd, 2026
Two in five healthcare organizations are building with AI without a developer, Paubox finds.

Two in five healthcare organizations are building with AI without a developer, Paubox finds. Business Wire Paubox will publish a benchmark of who builds with AI coding assistants inside healthcare, based on a survey of 151 leaders. SAN FRANCISCO, September 03, 2026-(BUSINESS WIRE)-Paubox commissioned a survey of 151 healthcare leaders in July 2026. Respondents were screened to organizations that transmit protected health information (PHI) electronically. All of them already use AI coding assistants to build or modify software. Every data point is scoped to healthcare organizations already using these tools rather than to healthcare organizations generally. The headline finding concerns people rather than technology. IT staff are building with AI coding assistants at 84% of the organizations surveyed, against 58% for developers and engineers. At roughly two in five of these organizations, developers are not among the builders at all. The staff building with AI at most organizations sit outside the engineering function: IT teams, operations and administrative staff, compliance officers, and clinicians. Widening that pool came as a side effect of adoption. Four out of five healthcare leaders rate the ability to let non-developers build an important reason they adopted these tools. Eighty percent of the organizations surveyed have deployed AI-assisted tools that patients use directly. Paubox will publish The 2026 benchmark for building with AI in healthcare, its first study of how healthcare organizations use AI coding assistants. The full report will cover the volume of tools these organizations are producing and what they build with AI assistance. It also maps the agent infrastructure connecting AI services to core systems, and where healthcare leaders expect AI-assisted development to go over the next 12 months. Media can request an advance copy of The 2026 benchmark for building with AI in healthcare from [email protected]. About Paubox Paubox is a leader in HIPAA compliant email security for healthcare and HITRUST certified. Trusted by more than 9,000 organizations, including Cost Plus Drugs, Rippling, and Covenant Health, Paubox works with your existing platform to secure every email sent and received. Paubox is rated #1 on G2 and is recognized on G2's 2026 Best Healthcare Software Products list. Paubox offers HIPAA compliant email encryption, AI-powered inbound email security, archiving, data loss prevention, a secure email API for transactional messaging, forms, and email marketing.

Associated Press
Sep 1st, 2026
Paubox opens HIPAA-compliant forms to AI agents via Model Context Protocol

Paubox has made its HIPAA-compliant forms accessible to AI agents. The agents can retrieve form questions, collect patient responses through conversation, and submit completed forms to Paubox under the platform's business associate agreement. The integration uses the Model Context Protocol, an open standard for connecting AI assistants to external systems. Paubox hosts a server exposing 30 tools across email, forms, and email marketing. AI agents can also create forms from plain-language descriptions, though generated forms require human review before publishing. Paubox Forms includes 11 templates for intake, consent, clinical tasks, patient experience, and operations. Submissions are stored on HITRUST-certified infrastructure with encryption in transit and at rest. The API access is included with all paid Paubox plans at no additional cost. Paubox serves over 8,000 organisations.

ChannelBuzz.ca
Sep 2nd, 2025
Paubox targets healthcare cyberthreats with Generative AI-powered email

Paubox, a key provider of HIPAA compliant email security, has unveiled its most ambitious product release to date - Inbound Email Security.

HIT Consultant
Jun 9th, 2025
Healthcare It Dangerously Overconfident In Email Security, New Report Finds

Source Credit: Paulbox 2025 Healthcare Email Security ReportWhat You Should Know: – A new 2025 report from Paubox reveals a critical disconnect between the perceived security readiness and actual email vulnerability within healthcare organizations. While 92% of healthcare IT leaders express confidence in their ability to prevent email-based data breaches, 8 out of 10 admit to worrying about their HIPAA compliance status, highlighting a dangerous overconfidence that leaves patient data exposed.– The report, “2025 Healthcare Email Security Report” leverages survey data from 150 U.S. healthcare IT leaders, breach analysis, and configuration audits, argues that email remains healthcare’s largest cybersecurity vulnerability. Critical gaps persist due to outdated systems and tools that create significant user frustration, leading staff to bypass security protocols.The Confidence Gap: Why Perceived Security Isn’t RealityThe confidence expressed by IT leaders is undermined by common on-the-ground realities. The Paubox report points to widespread security weaknesses that are often overlooked, including:User-dependent encryption that relies on staff to take extra steps.Partially configured email authentication tools like DMARC and SPF.A lack of formal incident response workflows for email-related risks, which is a HIPAA violation.Failure to review email logs and analytics.“Too often, organizations rely on infosec policies, user training, or manually enforced controls—rather than implementing automated, policy-driven email encryption solutions,” said Andrew Hicks, a partner at Frazier Dieter Advisory, LLC. “This overreliance on human-dependent safeguards introduces unnecessary risk.”This gap is further widened by significant barriers to adopting modern, HIPAA-compliant email solutions

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