Assembly
AI-powered client portal platform for professional service firms — centralize communication, billing, and file sharing in one branded hub.
| What is it | AI-powered client portal platform for professional service firms — centralize communication, billing, and file sharing in one branded hub. |
|---|---|
| Pricing | Paid — from $39/mo |
| Free tier | No |
| Platform | Web Application |
| API | Yes |
| Best for | client onboarding automation, secure document sharing |
| Domain registered | 1994 |
Data updated Aug. 1, 2026
What does Assembly do?
Assembly is an AI-powered client portal platform designed specifically for professional service firms. It provides a centralized, branded hub where businesses can manage all client interactions, from onboarding to ongoing communication. The platform combines a client-facing portal with back-office management tools, creating a seamless experience for both service providers and their clients.
The tool stands out with its AI Assistant feature that acts as a copilot for client interactions, helping businesses manage communications more efficiently. It offers comprehensive functionality including secure file sharing, contract management with eSignatures, invoicing with one-click payments, and customizable storefronts for productized services. The platform is built with enterprise-grade security and integrates with existing business tools through APIs and embed options.
Professional service firms in accounting, consulting, marketing, law, and real estate benefit most from Assembly. It's particularly valuable for businesses looking to streamline client onboarding, centralize communication, and present a polished, professional image to clients. The platform helps reduce administrative overhead while improving the client experience through a unified portal approach.
Key features
What makes it stand outWho is Assembly for?
Who benefits most from this toolPricing
Starter
- 50 clients
- 1 internal users
- 100 automation tasks per month
- CRM
- Client portal
- Messaging and team inbox
- Invoices, subscriptions, pay links
- Proposals and contracts
- Task and project management
- File-sharing and intake forms
- Embeds and links
- Access to App Store
Professional
Everything in Starter, plus:
- 500 clients
- 3 internal users
- 1,000 automation tasks per month
- Custom domain for portal
- Custom email domain
- Multi-company clients
- API, Zapier, Make
- App Visibility settings
- Custom Apps
- Low payment processing fees
Advanced
Everything in Professional, plus:
- unlimited clients
- 5 internal users
- unlimited automation tasks per month
- Full white-labeling
- Client Access permissions
- HIPAA compliance with BAA
- Lowest payment processing fees
- Enforce MFA for all internal users and clients
Enterprise
Everything in Advanced, plus:
- unlimited clients
- custom internal users
- unlimited automation tasks per month
- Custom SSO
- Audit log (coming soon)
- Advanced security controls (coming soon)
- Sandbox workspace
Trust & presence
Gallery
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