On-Premises eSignature: Your Documents, Your Servers, Your Control

Absolute Data Sovereignty

Keep your documents and signature data 100% within your own network. Our on-premises solution ensures no sensitive information is ever transmitted to or stored on external servers, giving you complete control to meet the strictest data residency and privacy laws like GDPR and CCPA.

Airtight Security

Deploy within your firewall and leverage your existing, hardened security infrastructure. By operating in your environment, including air-gapped networks, you eliminate the risks associated with multi-tenant cloud platforms and maintain full authority over access controls, monitoring, and threat prevention.

Proven Compliance

Pass your next audit with confidence. eSignly is designed to help you meet rigorous industry regulations. Our on-premises solution supports your compliance with HIPAA, 21 CFR Part 11, PCI DSS, and more, providing detailed audit trails that are stored and protected on your own servers.

Seamless API Integration

Integrate eSignature capabilities directly into your core business applications. Our robust REST API and detailed documentation make it easy to embed signing workflows into your custom CRM, ERP, SharePoint, or document management systems, creating a truly seamless user experience.

Lower TCO at Scale

Move from unpredictable operational expenses to a stable, predictable cost model. For organizations with high-volume signing needs, an on-premises license eliminates recurring per-signature or per-user fees, resulting in a significantly lower Total Cost of Ownership (TCO) over time.

Full Feature Parity

Choosing on-premises doesn't mean sacrificing functionality. You get the same powerful, enterprise-grade features as our premium cloud service, including advanced form fields, branding, templates, bulk sending, and in-person signing, all under your complete control.

Controlled Update Cycles

You decide when and how to update your software. We provide regular updates and security patches, but you control the deployment schedule. This allows your team to perform validation and testing in a staging environment, ensuring updates are rolled out without disrupting critical operations.

Expert Deployment Support

You're not on your own. Our team of experts assists you through the entire process, from initial consultation and infrastructure assessment to deployment, configuration, and training. We ensure your solution is set up for optimal performance and security from day one.

Vendor Reliability & Trust

Since 2014, eSignly has been a trusted partner for over 100,000 users and global brands. Our ISO 27001 and SOC 2 certifications reflect our commitment to security in our development practices, giving you confidence in the code you deploy in your own environment.

On-Premises Solution Deployment

We guide your IT team through the entire installation and configuration process. Our solution is delivered as a containerized package for modern infrastructure (Docker/Kubernetes) or as a virtual appliance, ensuring a smooth and predictable setup on your servers.

• Reduce deployment time and complexity
• Ensure proper configuration for security and performance
• Leverage expert guidance to avoid common pitfalls

Custom System Integration

Our professional services team helps you embed eSignly's capabilities deep within your existing software ecosystem. We architect and build connectors for your proprietary CRM, ERP, or document management systems using our powerful REST API.

• Create fully automated, end-to-end document workflows
• Eliminate manual data entry and process friction
• Maximize the ROI of your existing technology stack

Compliance & Validation Consulting

For industries like life sciences and healthcare, we provide expert guidance and documentation support to help you validate your on-premises installation. This service is critical for meeting requirements like FDA 21 CFR Part 11 and HIPAA.

• Accelerate your compliance validation process
• Reduce the burden on your internal quality assurance teams
• Gain confidence that your system meets regulatory standards

Dedicated Support & Maintenance

Receive priority access to our senior technical support engineers who specialize in our on-premises solution. Our support plans cover everything from troubleshooting and performance tuning to guidance on applying updates and patches.

• Minimize downtime and resolve issues quickly
• Access expert knowledge of your specific environment
• Ensure your platform remains secure and up-to-date

API Development Support

Empower your developers to build powerful integrations with dedicated support. We provide them with sandbox environments, code samples, and direct access to our API experts to answer questions and help them build efficient and secure connections.

• Speed up your internal development timeline
• Build more robust and feature-rich integrations
• Ensure best practices for security and performance

High-Availability & Disaster Recovery Planning

We work with your infrastructure team to design a resilient architecture. This includes configuring active-passive or active-active clusters and developing a robust backup and disaster recovery strategy to ensure business continuity for your critical signing workflows.

• Achieve uptime SLAs that meet your business requirements
• Protect against data loss and service interruptions
• Ensure critical document workflows are always available

Advanced User & Authentication Setup

Configure eSignly to work with your existing identity provider. We assist with setting up integrations for Active Directory, LDAP, SAML, or OAuth 2.0, enabling single sign-on (SSO) and ensuring your internal user access policies are enforced.

• Streamline user management and access control
• Enhance security by centralizing authentication
• Improve user experience with seamless SSO login

Branded & White-Labeled Signing Experience

Customize the signing interface to match your corporate brand identity completely. Since the solution is on your servers, you have full control over the domain, logos, colors, and email templates to provide a trusted and seamless experience for your clients and partners.

• Reinforce brand trust and recognition
• Provide a professional and consistent user journey
• Eliminate any third-party branding from your workflows

Data Migration Services

If you are moving from another system or a cloud provider, our team can help you securely migrate existing documents and templates into your new on-premises eSignly instance, ensuring a smooth transition with no loss of historical data.

• Maintain access to historical agreements and audit trails
• Ensure a seamless transition for end-users
• Reduce the manual effort and risk of data migration

Custom Workflow Automation Design

Our experts analyze your current paper-based or semi-digital processes and design fully automated workflows within eSignly. This includes setting up conditional logic, routing rules, and post-signing actions to maximize efficiency.

• Drastically reduce document turnaround times
• Minimize human error in document handling
• Free up your team to focus on higher-value tasks

Secure Document Archiving Strategy

We help you configure a secure, long-term archiving solution for your executed documents. This involves setting up integrations with your internal storage systems (like SharePoint or network drives) and defining policies for retention and disposal.

• Ensure long-term compliance with record-keeping requirements
• Maintain a secure and searchable repository of all agreements
• Control storage costs and infrastructure footprint

Performance Tuning & Optimization

For large-scale deployments with very high transaction volumes, we provide performance analysis and tuning services. We help you optimize your database, server resources, and application configuration to handle peak loads without degradation.

• Ensure a fast and responsive experience for all users
• Scale your signing capacity as your business grows
• Maximize the efficiency of your hardware investment

End-User & Administrator Training

We provide comprehensive, role-based training for your team. This includes sessions for administrators on managing the system and for end-users on how to create, send, and manage documents, ensuring high adoption rates across your organization.

• Accelerate user adoption and proficiency
• Reduce the number of internal support requests
• Ensure your team leverages the full power of the platform

Hardware Security Module (HSM) Integration

For the highest level of security, we assist with integrating your on-premises eSignly instance with an HSM. This ensures that the digital signature keys are protected in a dedicated, tamper-proof hardware device, meeting the most stringent security requirements.

• Achieve the highest standard of digital signature security
• Meet requirements for Qualified Electronic Signatures (QES)
• Protect critical signing keys from software-based attacks

Health Checks & Security Audits

We offer periodic health check and security audit services for your on-premises installation. Our experts review your configuration, performance logs, and security settings, providing recommendations to ensure your platform remains optimized and secure over time.

• Proactively identify and address potential issues
• Stay aligned with evolving security best practices
• Maintain peak performance and system health

Containerization (Docker/Kubernetes)

Simplifies deployment, scaling, and management, allowing the solution to run consistently across different environments.

Virtualization (VMware/Hyper-V)

Provides deployment flexibility, allowing the solution to run on your existing virtualized infrastructure.

REST API

The foundation for all integrations, allowing your applications to programmatically create, send, and manage documents.

Identity Providers (AD, LDAP, SAML, OAuth)

Enables Single Sign-On (SSO) and centralized user management by integrating with your existing corporate directory.

Databases (SQL Server, PostgreSQL, Oracle)

Offers flexibility to use your organization's standard, managed database for storing application data and audit trails.

Hardware Security Modules (HSM)

For organizations requiring the highest level of security, we support integration with HSMs to protect digital signature keys in tamper-proof hardware.

Windows & Linux Server OS

Our software is compatible with both major server operating systems, giving you the freedom to deploy on your standard platform.

Reverse Proxies (Nginx, Apache, HAProxy)

Integrates into your standard network architecture for load balancing, SSL termination, and secure external access if required.

Data Encryption (TLS 1.3, AES-256)

Ensures all data is encrypted both in-transit over your network and at-rest in your database, protecting it from unauthorized access.

Document Management Systems (SharePoint)

Native or custom integrations allow for seamless document archival and retrieval from your primary content repository.

ERP & CRM Systems (SAP, Salesforce)

API-based integration enables powerful workflows, such as automatically generating a contract in eSignly from an opportunity in your CRM.

SOC 2 Type II Compliance

Our certification demonstrates that our software development lifecycle follows audited security and quality processes, giving you trust in the code you deploy.

ISO 27001 Certification

This international standard for information security management validates our company-wide commitment to protecting data, which extends to the product we build.

21 CFR Part 11 Validation

Our solution includes the features required for life sciences companies to achieve and maintain compliance, such as audit trails and signature manifestations.

High-Availability Architecture

We design and support clustered configurations to ensure business continuity and eliminate single points of failure for your critical signing workflows.

Data Sovereignty & Control

Full Autonomy: Your documents, audit trails, and encryption keys never leave your controlled environment.

Shared Trust: Data resides on third-party servers, relying on vendor-provided security guarantees.

Compliance & Auditing

Validated Control: You manage the audit process. Ideal for HIPAA, 21 CFR Part 11, and GDPR compliance.

Vendor Attestation: Compliance depends on vendor audits and standardized reporting.

Integration Depth

Direct Access: Seamless, low-latency integration with internal systems and databases via private APIs.

Cloud-Bound: Relies on public internet connections and vendor-supported webhooks.

Cost & ROI Model

Predictable Capital: Perpetual license or long-term contract; stable pricing unaffected by usage spikes.

Variable Expense: Recurring per-user/per-signature fees; susceptible to price hikes and scale-based cost increases.

01. Discovery & Compliance Audit

We begin by mapping your specific security requirements and regulatory landscape. Our experts analyze your infrastructure to ensure full alignment with HIPAA, 21 CFR Part 11, or GDPR, creating a zero-risk deployment blueprint tailored to your network architecture.

02. Secure Infrastructure Setup

Our team deploys eSignly as a containerized, hardened application within your firewall. Whether using Docker, Kubernetes, or a virtual appliance, we configure the environment for high availability and peak performance, ensuring your data remains isolated and protected.

03. Custom API & Workflow Integration

We bridge the gap between eSignly and your core enterprise systems. Our engineers architect secure connectors for your CRM, ERP, or EMR, automating your document lifecycles and eliminating manual data entry while maintaining strict audit trails.

04. Validation & Operational Handover

Before go-live, we facilitate rigorous system validation and provide comprehensive training for your administrators. You receive a fully documented, compliant system ready for production, supported by our ongoing expert maintenance to ensure long-term stability.

Orlando Gilbert

Chief Technology Officer, Apex Financial Group

"We chose eSignly On-Premises because data control is non-negotiable for us. The deployment was smoother than we expected, and the API allowed us to integrate it directly into our core banking platform. It's a rock-solid solution for any security-conscious enterprise."

Veronica Dale

General Counsel, Starkweather & Lee LLP

"Our firm handles highly sensitive M&A and litigation documents. Storing them in the cloud was never an option. eSignly's on-premises solution gives us the digital efficiency we need while ensuring client confidentiality and a clear chain of custody. It's an essential tool for a modern law practice."

Parker Hudson

VP of IT Infrastructure, Quantum Dynamics Inc.

"The Total Cost of Ownership for eSignly On-Premises was significantly better for our volume than any cloud competitor. We have a predictable cost, and our data stays in our German data center, satisfying all GDPR requirements. It was the smart financial and technical decision."

Kaitlyn Drummond

Compliance Officer, Wellspring Pharma

"Validating our systems for 21 CFR Part 11 is a major undertaking. The eSignly team understood this and provided excellent documentation and support during our validation process. Having the system on-premises made demonstrating control to auditors straightforward."

Gabriel Lane

Director of Procurement, National Logistics Corp

"Our supply chain contracts are the lifeblood of our business. With eSignly On-Premises, we can automate thousands of vendor agreements a month without worrying about where that sensitive pricing and term data is stored. The reliability is fantastic."

Xavier Frost

City IT Manager, City of Northgate

"As a public entity, we have a responsibility to protect citizen data. eSignly's self-hosted solution allows us to digitize forms and permits while keeping all personal information securely within our own municipal infrastructure. It builds public trust and improves our services."

Perpetual License with Annual Maintenance

Ideal For: Organizations seeking to treat software as a capital expenditure (CapEx) with a predictable ongoing cost for support and updates.

• A one-time license fee for perpetual use of the software.
• An annual maintenance fee (typically a percentage of the license cost).
• Access to all new feature releases and security patches.
• Standard technical support.

On-Premises Annual Subscription

Ideal For: Organizations that prefer an operational expenditure (OpEx) model but still require the security and control of a self-hosted solution.

• An all-inclusive annual subscription fee.
• Full license to use the software during the subscription term.
• Access to all new releases, patches, and updates.
• Priority technical support.

Professional Services Implementation Package

Ideal For: Clients who need expert assistance with deployment, integration, or customization.

• Deployment & Configuration: Hands-on assistance with installation and setup.
• Integration Services: Development of custom connectors to your internal systems.
• Training: Role-based training for administrators and end-users.
• Validation & Compliance: Documentation and consulting support for regulated industries.

What exactly is an on-premises eSignature solution?

An on-premises solution allows you to host the entire eSignature infrastructure within your own data center or private cloud. Unlike SaaS, where data resides on a third-party server, you maintain complete physical and logical control over your data, documents, and signing processes.

How does on-premises improve compliance compared to SaaS?

It eliminates third-party data access risks. By keeping data within your network perimeter, you satisfy strict data sovereignty requirements (like GDPR) and industry-specific regulations (HIPAA, 21 CFR Part 11) that prohibit or strictly regulate storing sensitive data in the public cloud.

Can your on-premises solution integrate with our existing ERP or CRM?

Yes. eSignly On-Premises includes a robust REST API designed for deep, secure integration with internal enterprise applications like SAP, Salesforce, or custom document management systems, enabling automated, secure document workflows.

Does this solution support air-gapped environments?

Absolutely. Our platform is engineered for high-security environments, including fully air-gapped networks. We provide offline licensing and installation procedures that ensure the system operates flawlessly without requiring an internet connection.

How does the Total Cost of Ownership (TCO) compare to SaaS?

While SaaS has lower upfront costs, it often scales into high, unpredictable operational expenses. An on-premises perpetual license model provides a fixed, predictable capital investment, which is significantly more cost-effective for organizations with high-volume signing needs.

Who is responsible for server maintenance and security?

As the host, your internal IT team manages the underlying hardware and network security. eSignly provides the hardened, containerized software application, regular security patches, and expert guidance to ensure your infrastructure remains optimized and secure.

Will we fall behind on features compared to your cloud version?

No. We ensure feature parity across our deployment models. You have full control over when to deploy updates in your staging and production environments, allowing you to innovate at the speed that matches your internal change management processes.

Can we white-label the interface for our clients?

Yes. Since you control the hosting environment, you have complete authority to brand the interface with your corporate identity, including custom domains, logos, and email templates, providing a fully branded experience without any eSignly branding.

How do we handle high-availability and disaster recovery?

Our solution supports clustered, load-balanced architectures. We work with your infrastructure team to configure active-passive or active-active setups, ensuring your critical signing workflows remain available even during hardware or network failures.

What is the typical timeline for an on-premises deployment?

Deployment time varies based on complexity and integration requirements, typically ranging from a few weeks for standard setups to a few months for complex, highly integrated, or regulated environments. We provide a structured project plan to ensure a smooth, timely rollout.

Edge-Based AI for Private Document Intelligence

We are actively developing localized, containerized AI models engineered to run strictly within your firewall. This approach allows you to leverage intelligent document classification, automated data extraction, and predictive risk scoring without a single byte of data leaving your secure enclave.