Electronic signature software for service firms

Easy contract management platform for service-based businesses. Create docs and request electronic signatures in a seamlessly branded client portal. Try for free for 14 days – no credit card required.

Deliver fast, secure, and client-friendly contracts.

Professional digital signature and electronic signature tools designed for teams who need reliability, security, and speed. Send mobile-friendly documents online seamlessly with a fully branded portal.

A professional tool for professional firms

Secure data with enterprise-grade safeguards (SOC2, HIPAA), and trigger actions with APIs and webhooks. Export audit trails, automate contract workflows, and personalize the experience with branding and a custom domain.

Audit trails

Audit trails provide proof of contract access, review, and signature.

Templates

Create reusable templates with autofill fields and variable fields.

Branded signing

Provide clients a completely white-label signing experience.

Security

Stay compliant with SOC2 and HIPAA compliance.

Contracts API

Assign contracts to clients and use contracts submission data in workflows.

Automations

Use our internal automations feature to assign contracts as part of workflows.

Zapier and Make

Use no-code tools like Zapier and Make for contract automation workflows.

Exports

Seamlessly export contracts in PDF and contract analytics reports in CSV.

Streamlined contract management

Simplify your contract management process with tools designed to save time and boost efficiency. Create one-time eSignature requests, manage and track contracts easily, and set up reusable contract templates that can be configured as part of automated workflows.

Contract creation Contract management Notifications

More than just eSignatures

Seamlessly grow beyond contracts. Automate your entire client journey with powerful tools included at no extra cost — invoicing, subscription billing, intake forms, file-sharing, and more.

Invoicing

Create invoices for your clients to pay via credit card or ACH.](/content/invoicing/index.html)

Automations

Set up workflows that save you time with client management.](/content/platform/index.html)

Subscriptions

Automate recurring payments and billing cycles for predictable revenue](/content/guide/assembly-billing-app#subscriptions/index.html)

File-sharing

Share files and documents securely with easy client access and permissions.](/content/file-sharing/index.html)

Tasks

Manage tasks seamlessly across your team and clients in one place.](/content/apps/directory/tasks/index.html)

Security

Keep data safe with enterprise-grade SOC 2 and HIPAA compliance.](https://security.assembly.com/)

CRM

Manage client relationships and track every interaction in one hub.](/content/client-management/index.html)

Forms

Create custom intake forms to collect client information efficiently.](/content/apps/directory/forms-app/index.html)

Contracts

Send professional agreements with built-in eSignatures.](/content/esignature/index.html)

Modern eSignatures for professional service businesses

Try for free for 14 days, no credit card required.

Contract Management FAQs

What is an electronic signature and digital signature?

Electronic signatures (eSignatures): a more general term for fast and secure ways to sign online agreements. It usually includes needing to do actions like typing your name and uploading your signature, and can include drawing a signature with a mouse or finger.

Digital signatures: a more specific term than eSignature, which has an extra layer of security. Usually, this happens via encryption and identity verification. Most advanced eSignature tools, such as Assembly, use digital signature technology to keep your documents compliant and secure.

Are eSignatures legally enforceable?

Yes. eSignatures are legally enforceable and valid in most countries, such as the U.S. and countries within the EU.

When a client signs a contract in Assembly, it includes a full audit trail; you will have clear proof of who signed what, when they signed it, and where they were when it happened.

What types of documents can be signed electronically?

You can use Assembly to sign things like client agreements (like MSAs and SOWs), freelance or contractor agreements, NDAs, proposals, onboarding forms, and more.

If you can upload it as a PDF, you can sign it with Assembly.

What document formats do Assembly contracts support?

Assembly supports PDF contracts. This keeps your formatting consistent across devices and is the industry standard for digital signatures.

How do recipients sign Assembly contracts?

Clients receive a contract directly through your branded client portal or via email. No logins or downloads are required to sign. Just click, review, and sign. Signing the contract is easy to do and optimized for desktop and mobile.

How do I know if a recipient has signed a contract?

You will get updated when your client signs a contract. You'll see the updated contract status in your dashboard as soon as it's signed. Your client can also view a final copy of the signed contract in their portal.

How is Assembly different from DocuSign, HelloSign, PandaDoc, and others?

Assembly isn’t just for contracts—it is a full client experience platform, complete with a CRM and client portal. Tools like DocuSign focus solely on signatures, but Assembly brings together contracts, payments, messaging, forms, file-sharing, and more into one client portal. Assembly's Advanced plan is white-labeled, so your brand stays front and center—on your domain, in your emails, and throughout the client experience.

Your clients get one simple login for everything. You get a streamlined, professional workflow that scales.