InterWorx
InterWorx, LLC is a privately held Pittsburgh-based software company (founded 2005) that builds a Linux web hosting control panel with NodeWorx and SiteWorx modules, an API-first XMLRPC/SOAP interface, clustering, and a plugin system. It serves hosting providers, resellers, and website owners via subscription licensing, and is owned by Liquid Web.
- Company typePrivate
- Founded2005
- HeadquartersPittsburgh, United States
- Headcount1–10
- GTM typeB2B
- OfferingSoftware
What InterWorx does
InterWorx, LLC is a privately held software company founded in 2005 and headquartered in Pittsburgh, United States, that develops a Linux-based web hosting control panel. The product is built around a dual-module architecture: NodeWorx, a server-level administration interface for managing accounts, system services, backups, clustering, and IP resources, and SiteWorx, a website/domain-level interface for managing domains, email accounts, MySQL/MariaDB databases, FTP, SSL certificates, DNS zones, statistics, and file management. The platform is API-first, exposing every feature via XMLRPC and SOAP interfaces (with WSDL definition), and includes a CLI utility (interactive and batch modes) plus an extensible plugin system that lets partners and customers modify behavior, add menu items, and integrate third-party services (CloudLinux, Imunify360/AV, LiteSpeed, Softaculous, Acronis, Cloudflare, Let's Encrypt, Amazon S3). Migration tooling (including cPanel import), clustering with external load-balancer support on AWS and Google Cloud, and built-in mail, security, and backup functions round out the stack. Major versions InterWorx 8.0, 8.1, and 8.2.0 shipped in 2025, with 2026 roadmap items including Exim mail-server support and RHEL 10 / AlmaLinux 10 compatibility.
Commercially, InterWorx generates revenue through recurring software licensing: $20/month per single server, $7.50/month per VPS (capped at 4 vCPUs), and bulk licensing for 500+ units priced as low as $5/month on annual or multi-year contracts, with bulk customers receiving prioritized roadmap input. Distribution is exclusively digital-direct via portal.interworx.com (both self-serve SMB and direct enterprise motion), with go-to-market supplemented by a free product demo, an extensive documentation portal, and community forums rather than paid advertising or channel partners. Primary served segments are hosting providers and resellers (white-label capable, account packages, bandwidth management), with website owners as a secondary segment; the segmentation approach is horizontal across use cases.
InterWorx is wholly owned by Liquid Web, operating as one of four brands alongside Liquid Web (dedicated servers, VPS, VMware private cloud), Nexcess (managed cloud for Magento, WooCommerce, WordPress), and iThemes (WordPress SaaS and plugins), within a family of nearly 600 employees. The InterWorx subsidiary itself is reported at 1-10 employees, consistent with a focused product-engineering organization leveraging the parent's broader commercial infrastructure.
InterWorx firmographics
Firmographics- Name
- InterWorx
- Legal name
- InterWorx, LLC
- Website
- https://interworx.com
- Company type
- Private
- Founded year
- 2005
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- InterWorx, LLC is a privately held Pittsburgh-based software company (founded 2005) that builds a Linux web hosting control panel with NodeWorx and SiteWorx modules, an API-first XMLRPC/SOAP interface, clustering, and a plugin system. It serves hosting providers, resellers, and website owners via subscription licensing, and is owned by Liquid Web.
- Ownership category
- akta.pro rank
Where InterWorx is headquartered
LocationHeadquarters
- HQ city
- Pittsburgh
- HQ country
- United States
- HQ region
- North America
Markets served
InterWorx business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Technology or R&D, Personnel, Operations, Infrastructure, Marketing or Sales
Revenue model
- Software Licensing: InterWorx generates revenue through software licensing of its Linux server control panel. Single server licenses are priced at $20/month, VPS licenses at $7.50/month (limited to servers with 4 or fewer vCPUs), and bulk licenses (500+ units) starting at $5/month with annual or multi-year commitment. The license model allows hosting providers and resellers to manage unlimited domains under the single server license.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Monthly | Single Server License - $20/month |
| Subscription | Monthly | Single VPS License - $7.50/month |
| Subscription | Multi-year contract | Bulk Licenses (500+) - from $5/month |
Go-to-market motion1 record
Distribution channels2 records
Marketing channels4 records
InterWorx product offering
Product offeringCore offering
InterWorx is a Linux-based web hosting control panel that enables server administrators and hosting providers to manage servers, domains, email, databases, and websites. The product consists of two integrated modules: NodeWorx for server-level administration and SiteWorx for website/domain-level management, supplemented by an API, CLI utility, plugin system, and clustering capabilities.
Product overview
InterWorx is a Linux web hosting control panel company offering a unified platform architecture centered on the InterWorx Control Panel. The product comprises two core modules: NodeWorx (server-level administration interface) and SiteWorx (website/domain-level management interface). Additional offerings include a Command-Line Interface (CLI) utility, a public API supporting XMLRPC and SOAP protocols, clustering capabilities for multi-server deployments, and an extensible plugin system. The platform is designed for hosting providers, resellers, and website owners, and is now part of the Liquid Web family of brands.
Differentiator
Problem solved
Functional benefit
Brands
- NodeWorx: Server-level control panel interface for managing SiteWorx accounts, reseller accounts, system services, backups, clustering, and IP management.
- SiteWorx
Products and services
- InterWorx Control Panel A comprehensive Linux server system providing web hosting control panel functionality for server administrators and customers to manage domains, email, and websites. Includes NodeWorx and SiteWorx modules.
- NodeWorx
Companies that use InterWorx
Customer profileSegments3 records
Ideal customer profiles2 records
InterWorx technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- Yes
- API docs
- API detail
Core technology
AI maturity
App detail
Integration9 records
Feature6 records
InterWorx partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- Liquid WebcoreLiquid Web is the parent company of InterWorx. InterWorx is part of the Liquid Web Family of Brands which includes Liquid Web (dedicated servers, VPS, VMware private cloud), Nexcess (managed cloud for Magento, WooCommerce, WordPress), iThemes (WordPress SaaS and plugins), and InterWorx (Linux control panel).
Recent moves5 records
Expansion highlights4 records
InterWorx competitors and assessment
Company assessmentDirect peers
- DirectAdmin: Lightweight commercial web hosting control panel positioned as a lower-cost alternative to cPanel/Plesk. InterWorx competes with DirectAdmin for hosting providers seeking simpler, cheaper licensing.
- Plesk: Leading commercial web hosting and server management panel, widely deployed by hosting providers and agencies. Plesk and InterWorx compete for the same Linux hosting control panel slot with overlapping feature sets.
- ISPmanager: Commercial Linux server and web hosting control panel from ISPsystem. Competes with InterWorx for hosting providers and resellers needing server-level plus per-site account management.
- cPanel (WebPros): The dominant Linux web hosting control panel, owned by WebPros. InterWorx explicitly targets cPanel with its built-in migration tool, and the two products compete head-to-head for hosting provider deployments.
- Virtualmin (Webmin): Open-source web hosting control panel built on Webmin for Linux server and domain management. Targets similar hosting provider and sysadmin use cases as InterWorx with a free/open-source model.
- ISPConfig: Open-source hosting control panel for Linux servers supporting multiple server roles. Competes at the lower-end of the same market as InterWorx for hosting providers and resellers.
Emerging players
- CentOS Web Panel (CWP): Open-source CentOS-focused web hosting control panel with paid Pro tier. Competes with InterWorx on Linux server administration, particularly for CentOS/AlmaLinux deployments, and overlaps with InterWorx's migration-from-cPanel positioning.
- ServerPilot: Cloud-based server management platform for PHP apps on DigitalOcean, AWS, and Google Cloud. Represents the emerging cloud-native category of control panel replacement that competes with InterWorx for modern hosting stacks.
- RunCloud: SaaS server management panel for deploying and managing PHP/WordPress apps on cloud servers. Competes with InterWorx for hosting providers and SMBs needing cloud-native server administration.
- CloudPanel: Modern, free web hosting control panel purpose-built for cloud servers (AWS, Google Cloud, Hetzner). Competes with InterWorx in the same cloud-hosted server management niche and supports a modern PHP/Node stack.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights6 records
Customer concentration
InterWorx social profiles
Digital presenceInterWorx financial estimates
Financial estimateRevenue estimate
Valuation estimate
InterWorx leadership team
Management profileNumber of profiles
InterWorx funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
InterWorx 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 InterWorx
What does InterWorx do?
InterWorx is a Linux-based web hosting control panel that enables server administrators and hosting providers to manage servers, domains, email, databases, and websites. The product consists of two integrated modules: NodeWorx for server-level administration and SiteWorx for website/domain-level management, supplemented by an API, CLI utility, plugin system, and clustering capabilities.
Is InterWorx a public or private company?
InterWorx is a private company. It is classified as corporate owned and is currently operating.
When was InterWorx founded?
InterWorx was founded in 2005. It employs 1 to 10 people.
Where is InterWorx based?
InterWorx is headquartered in Pittsburgh, United States, in the North America region.
How does InterWorx make money?
One revenue line is on record: software Licensing.
Who are InterWorx's main competitors?
Direct peers on record are DirectAdmin, Plesk, ISPmanager, cPanel (WebPros), Virtualmin (Webmin) and ISPConfig. Emerging players are CentOS Web Panel (CWP), ServerPilot, RunCloud and CloudPanel.
Does InterWorx have an API?
Yes. InterWorx provides a REST/XMLRPC/SOAP API that enables developers to integrate and automate control panel functions. The API is divided into two parts: NodeWorx API for server administration and reseller/SiteWorx account management, and SiteWorx API for specific SiteWorx account tasks. Authentication supports email/password, API key, and session ID methods. Available protocols include XMLRPC and SOAP. The API is based on open standards including XMLRPC, SOAP, and WSDL. Example code is provided in PHP, Perl, Golang, and Python. Documentation available at appendix.interworx.com/current/api/index.html. SOAP WSDL endpoint at https://%%SERVERNAME%%:2443/soap?wsdl and XMLRPC at https://%%SERVERNAME%%:2443/xmlrpc. Developer documentation is at appendix.interworx.com/current/api/index.html.