Assembly

AI-powered client portal platform for professional service firms — centralize communication, billing, and file sharing in one branded hub.

Verified API available ~4.3k monthly visits
Quick facts
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.

#ai assistant#billing#business automation#client portal#crm#file sharing#professional services

Key features

What makes it stand out
01
Branded client portal for unified customer experience
02
AI Assistant copilot for smarter client interactions
03
Integrated contracts and eSignature capabilities
04
Secure file sharing and client communication tools
05
Invoicing and billing with 1-click payments

Who is Assembly for?

Who benefits most from this tool
client onboarding automation
secure document sharing
unified client communication

Pricing

Starter

$39.0/month
  • 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

$149.0/month

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

$399.0/month

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

$2000.0/month

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

Domain Domain registered 1994

Gallery

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