Name

Roundcube Plus

Legal name

Tecorama LLC

Website

https://roundcubeplus.com

Company type

Private

Founded year

2008

Operating status

Operating

Headcount range

11–50 employees

Ownership category

akta.pro rank

Headquarters

HQ city

Irvine

HQ country

United States

HQ region

North America

Markets served

GTM type

B2B

Offering type

Software

Cost components

Technology or R&D, Personnel, Infrastructure, Marketing or Sales, Operations

Revenue model

1. Self-hosted Software Licenses: One-time purchase model for downloadable skins and plugins. Each license grants one usage for one Roundcube installation. Licenses include 1 year of upgrade access.
2. Atlas Cloud Subscription: SaaS platform offering fully managed, white-label webmail hosted in the cloud. Includes Roundcube program, all skins and plugins, third-party plugins, and admin panel. Works with customer's existing email server.
3. Affiliate Program: 5% recurring commission on qualifying sales generated through affiliate referral links for hosting providers, MSPs, and developers.
4. Professional Installation Services: Paid installation and deployment of Atlas at $49 fee for customers requiring assistance with setup.

Pricing tiers

Go-to-market motion3 records

Distribution channels4 records

Marketing channels8 records

Core offering

Roundcube Plus develops and sells premium skins and plugins for the open-source Roundcube webmail client, delivering Gmail-grade UI, productivity tools, and security features that install on top of existing Roundcube infrastructure without mailbox migration. The company offers its products via two delivery models: self-hosted downloadable plugin and skin licenses (RC+ Download) and a fully managed white-label webmail SaaS (Atlas Cloud). Plugin portfolio includes AI Composer, Two-Factor Authentication, CalDAV Calendar, Multibox, Email Scheduler, Signature Pro, and Dropbox/Google Drive/WebDAV integrations.

Product overview

Roundcube Plus is a suite of premium skins and plugins that enhance the open-source Roundcube webmail client. The product portfolio includes two main delivery models: RC+ Self-Hosted (downloadable skins and plugins for existing Roundcube installations) and Atlas Cloud (fully managed SaaS webmail platform). Key plugins include AI Composer for AI-powered email drafting, Two Factor Authentication for security, CalDAV Calendar with built-in CalDAV server for third-party calendar sync, Multibox for multi-account management, Email Scheduler for scheduled/undo-send, Signature Pro for visual signature building, and cloud storage integrations (Dropbox, Google Drive, WebDAV/Nextcloud). The xFramework is the core plugin required by all other plugins and skins. The product requires Roundcube 1.5.x or 1.6.x and PHP 7.4 or higher.

Differentiator

Problem solved

Functional benefit

Brands

• Atlas Cloud: A SaaS platform providing fully maintained, white-label webmail application hosted in the cloud, including Roundcube program, all skins and plugins, third-party plugins, and admin panel. No installation or maintenance required - works with existing email servers.

Products and services

• Atlas Cloud A fully managed, white-label webmail SaaS platform hosted in the cloud that includes the Roundcube program, all RC+ skins and plugins, third-party plugins, and an admin panel. It requires no installation and connects to a customer's existing email server, keeping mail data on customer infrastructure.
• RC+ Self-Hosted Plugin and Skin Suite The core Roundcube Plus product family of downloadable skins and plugins for existing Roundcube installations. Sold via per-installation licenses and bundled subscriptions (Plugin Mega Pack, Ultimate Pack), enabling customers to install productivity and security plugins directly on their own servers.
• Roundcube Plus Skins/Themes Professionally designed UI themes for Roundcube with modern responsive design, dark mode support, mobile-friendly layouts, white-label branding with logo and color customization, and regular browser compatibility updates.
• AI Composer Plugin AI-powered email drafting, refinement, and reply-acceleration plugin integrated directly into Roundcube. Generates email messages from prompts with customizable writing style, language, length, and creativity level. Supports OpenAI GPT and local LLM deployments via Ollama for enhanced privacy, with customizable AI prompts for administrators.
• Two-Factor Authentication Plugin Comprehensive two-factor authentication plugin for Roundcube supporting mobile app (TOTP), SMS OTP via Twilio, email OTP, and Yubikey USB hardware tokens. Includes backup recovery codes, enforcement options, and trusted IP bypass capability.
• CalDAV Calendar Plugin Professional calendar plugin featuring a built-in CalDAV server that enables synchronization with third-party calendar applications including iOS Calendar, macOS Calendar, Thunderbird, Microsoft Outlook, Evolution, and emClient. Supports event email notifications, CalDAV VALARM, Google Calendar read-only integration, and holiday calendars.
• Multibox Plugin Email account management plugin that enables users to manage multiple email accounts from a single Roundcube interface with quick account switching and unified inbox search across accounts.
• Email Scheduler Plugin Email scheduling plugin enabling scheduled email sending, delayed delivery, and undo-send controls with a configurable countdown timer before messages are sent.
• Signature Pro Plugin Visual email signature builder with drag-and-drop design editor, templates, company logo support including SVG, social media icons, multi-language support, and HTML export for use in other email programs.
• Dropbox Integration Plugin Cloud storage integration plugin enabling users to attach files from Dropbox cloud storage or save incoming email attachments to Dropbox directly from Roundcube.
• WebDAV Plugin WebDAV cloud storage integration plugin supporting Nextcloud servers, allowing users to attach files from WebDAV storage or insert links from WebDAV-enabled servers to emails composed in Roundcube.
• CardDAV Plugin Address book synchronization plugin using the CardDAV protocol for contact sync with third-party address book applications.
• Google Drive Integration Plugin Cloud storage integration plugin enabling users to attach files or insert links from Google Drive to emails composed in Roundcube.
• xFramework Core framework plugin required for all Roundcube Plus skins and plugins to function properly. Handles licensing, configuration, and shared functionality across the RC+ product suite.

Named customers6 records

Segments4 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration16 records

AI capability2 records

Feature7 records

Partnerships

Ten partnerships are on record, tiered core and supporting.

• iOS CalendarcoreTechnology or IntegrationRoundcube Plus Calendar plugin includes a built-in CalDAV server enabling synchronization with iOS Calendar app on iPhone and iPad devices. Users can create CalDAV connections from their Roundcube calendar to access events on mobile devices.
• ThunderbirdcoreTechnology or IntegrationCalendar synchronization via CalDAV with Thunderbird using the Lightning extension. The plugin supports both URL and Alternate URL for connection configuration.
• Microsoft OutlookcoreTechnology or IntegrationCalendar sync via CalDAV Synchronizer addon for Outlook. Roundcube calendar events can be synchronized to Outlook calendar grid using Generic CalDAV/CardDAV profile.
• emClientsupportingTechnology or IntegrationCalendar synchronization support for emClient Windows application via CalDAV protocol using the primary (non-Alternate) URL.
• EvolutionsupportingTechnology or IntegrationCalendar sync support for Linux Evolution email client via CalDAV protocol with automatic calendar discovery functionality.
• Mac OS X CalendarcoreTechnology or IntegrationFull CalDAV support for macOS Calendar app with SSL and non-SSL configuration options. Supports both standard and advanced account types for calendar access.
• Google CalendarsupportingTechnology or IntegrationDisplay Google Calendar events inside Roundcube calendar with read-only access due to Google API restrictions. Requires Google Calendar API key configuration.
• DropboxsupportingTechnology or IntegrationCloud storage integration plugin allowing users to attach files from Dropbox or save incoming attachments to Dropbox storage.
• NextcloudsupportingTechnology or IntegrationWebDAV plugin supports Nextcloud servers for attaching files from WebDAV storage or saving attachments to WebDAV-enabled servers.
• YubicosupportingTechnology or Integration2FA plugin supports Yubikey USB hardware authentication tokens for secure webmail access with touch-based authentication.

Scale indicators1 record

Recent moves6 records

Expansion highlights6 records

Direct peers

• Afterlogic: Afterlogic develops Aurora skins, Webmail Pro, and add-ons for the Roundcube webmail client, making it the closest direct competitor in the Roundcube ecosystem with a nearly identical product offering and target customer base.
• Mailcow (Mailcow Dockerized): Mailcow is an open-source mail server suite that ships with Roundcube webmail as its default client, serving self-hosted email operators - the same technical buyer that purchases RC+ plugins and skins to enhance their Roundcube install.
• Modoboa: Modoboa is an open-source mail hosting and management platform that integrates Roundcube as its webmail frontend, competing for the same system administrator audience looking to enhance their Roundcube deployment.
• SOGo (Inverse Inc): SOGo is an open-source groupware server providing email, calendar (CalDAV), and contacts (CardDAV) - directly overlapping with RC+'s Calendar and 2FA plugins for hosting providers and self-hosted deployments.

Emerging players

• Stalwart Mail: Stalwart Mail is a modern open-source mail server with built-in JMAP, CalDAV, and CardDAV support, positioning as a Roundcube replacement for the same self-hosted/hosting provider segment that Roundcube Plus targets.
• Kopano: Kopano offers an open-source groupware and webmail platform with calendar and contacts sync, providing an alternative Roundcube replacement for the hosting provider and enterprise segments Roundcube Plus serves.
• Vivaldi Mail: Vivaldi Mail is a privacy-focused webmail client with built-in productivity features (calendar integration, AI assist), competing for the modern email experience user that Roundcube Plus targets through its AI Composer and CalDAV plugins.

Broad incumbents

• Zimbra (Synacor): Zimbra is an established enterprise email and collaboration platform with built-in webmail, calendar, and security features, competing for the same enterprise email customers who might otherwise deploy Roundcube with RC+ enhancements.
• IceWarp: IceWarp provides a full email and team collaboration suite with its own webmail client, calendar, and security features, targeting SMBs and enterprises that may otherwise choose self-hosted Roundcube with third-party plugins.

Regional players

• Atmail: Atmail provides hosted and self-hosted email solutions with its own webmail client targeting ISPs, hosting providers, and telcos - the same channel partner audience Roundcube Plus cultivates through its reseller and affiliate programs.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xx.com/roundcubeplus
• YouTubeyoutube.com/@roundcubeplus3284
• LinkedInlinkedin.com/company/tecorama

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Roundcube Plus