AAssembly logo

Assembly Unclaimed

Professional Services

assembly.com

New York, New York, USA

A flexible, brandable platform enabling professional service firms to manage clients, communications, and payments from a single portal.

Assembly is a platform for professional service firms to unify client management, messaging, payments, contracts, and related workflows in a modern, brandable portal. The platform includes AI-powered CRM, secure file sharing, invoicing, e-signature support, and extensive integrations, enabling teams to tailor client experiences, automate processes, and monetize services while meeting enterprise-grade security and privacy standards.

To empower professional service firms to deliver seamless, secure client experiences by integrating client management, communications, and financial workflows in one adaptable platform.

What we offer

AI App Builder

Easily Create Custom Apps Using AI To Enhance Client Experiences.

studio.assembly.com

Client Portal

Enhance client interactions with a personalized, all-in-one portal for seamless management.

assembly.com/client-portal

Client Management

Streamline client interactions with integrated CRM, invoicing, and secure communication tools.

assembly.com/client-management

Assembly Platform

Empower businesses with a flexible and integrateable platform for streamlined client management.

assembly.com/platform

Client Onboarding System

Streamline new client setup with automated onboarding workflows.

assembly.com/client-onboarding-system

Store

Enable clients to purchase services seamlessly through a branded storefront.

assembly.com/store

Invoicing

Simplify invoice management and enhance client payments efficiently.

assembly.com/invoicing

eSignature

Streamline your contract management with secure, branded eSigning.

assembly.com/esignature

File Sharing

Easily share files and documents securely with clients in a branded portal.

assembly.com/file-sharing

Payments App

Streamline billing by providing clients with easy payment options, invoice tracking, and management tools.

assembly.com/apps/directory/payments-app

Forms App

Effortlessly gather client data with customizable forms.

assembly.com/apps/directory/forms-app

Messaging App

Facilitates secure and seamless communication between clients and teams.

assembly.com/apps/directory/messaging-app

Client Communication Tool

Streamline client communications with secure messaging and integrated tools.

assembly.com/client-communication-tool

Market segments

Market size by segment

Growth potential (CAGR)

Client Communication and Portals

2.2 Billion USD10.5% CAGR

Customer messaging, automated communications, and client self-service portals that provide job status, documents, and payment options.

Customer onboarding and activation

2 Billion USD15% CAGR

Design, automate, and manage personalized onboarding plans that collect client files, assign tasks, send reminders, and accelerate time-to-value to reduce time-to-live and scale onboarding capacity.

Payments and monetization

82.9 Billion USD7.8% CAGR

In-app billing, subscriptions, packages, and event or clinic payment collection for monetizing services and managing transactions.

CRM and back-office automation

12 Billion USD12% CAGR

AI-assisted client relationship management, contract and billing coordination, and workflow automation that organizes client data and internal processes for professional services firms.

Low-code/no-code application platform

37.39 Billion USD29.1% CAGR

Platform-embedded prebuilt and customizable applications and integrations that accelerate deployment of sales and operational processes without custom code.

More information about our offering

AI App Builder

A tool to build custom AI-powered apps on the Assembly platform for professional service firms.

  • Create Tailored Apps
    Leverage artificial intelligence to design personalized applications that cater to specific business needs without extensive coding.
  • Automate Client Onboarding
    Enhance efficiency and reduce errors by automating client onboarding steps within built apps.
  • Integrate With Existing Systems
    Connect your custom applications with other software seamlessly, enhancing functionality without disrupting workflows.
  • Personalize Client Portals
    Create a branded client portal where users can access all their necessary apps, documents, and communications.
  • Enable No-Code Development
    Allow users to create applications through intuitive interfaces, reducing reliance on technical resources.

Client Portal

Branded client portal to deliver a cohesive client experience with messaging, file sharing, invoicing and more.

  • Create Unique Portals
    Personalize your client portal with your branding, including logos, colors, and custom domains, ensuring a professional representation of your business.
  • Centralize Client Management
    Integrate client messaging, task management, invoices, and document sharing within one platform for enhanced collaboration and efficiency.
  • Simplify Onboarding
    Use automatic messaging, contracts, and forms to onboard clients smoothly, enhancing initial interactions and saving valuable time.
  • Share Files Securely
    Enable clients to access and upload documents directly to a secure environment, ensuring document integrity and protection.
  • Integrate Seamlessly
    Connect with existing platforms like Google Drive, Calendly, and others to provide a comprehensive client experience.
  • Obtain Legally Binding Signatures
    Allow clients to review and sign contracts quickly and securely, fostering quicker deal closures.
  • Enhance Client Engagement
    Personalize notifications for important client updates, helping maintain consistent communication and enhancing client relationships.

Client Management

CRM and billing tools to manage client relationships, contracts, invoices and payments from a single interface.

  • Manage Client Data Efficiently
    Utilize a powerful CRM combined with billing functionalities to track client interactions, oversee financials, and maintain comprehensive client records in one place.
  • Enhance Brand Presence
    Provide clients with a personalized portal that reflects your brand, ensuring a unified and professional experience.
  • Communicate Securely
    Effortlessly share information with clients in a secure environment, enhancing collaboration and responsiveness without scattered emails.
  • Streamline Onboarding
    Simplify the onboarding experience by automating the collection of client information and organizing workflows based on client needs.
  • Organize Workflows Seamlessly
    Leverage AI to enhance productivity by automating routine tasks, ensuring that teams stay aligned and efficient in managing client relationships.

Assembly Platform

An extendable platform that enables integrations with other software and supports app development on Assembly. This platform allows professional service firms to efficiently manage client interactions and workflows in a customizable environment.

  • Build Custom Apps
    Create tailored applications that fit specific client needs and workflows, significantly enhancing operational efficiency.
  • Integrate Seamlessly
    Connect with numerous tools and services through native integrations or APIs, facilitating an agile operational framework.
  • Ensure Data Safety
    Adhere to SOC 2 and HIPAA compliance measures to protect sensitive client information within the platform.
  • Enhance Client Experience
    Provide clients with secure access to personalized resources, messaging, task management, and document management within a cohesive environment.
  • Streamline Operations
    Save time and reduce errors by automating repetitive tasks, ensuring consistency and efficiency in client management.

Client Onboarding System

Automates client onboarding workflows to streamline new client setup.

  • Simplify Client Setup
    Facilitate a seamless onboarding process by automating messages, contracts, and file sharing. Clients enjoy a smooth transition into your services, reducing administrative burdens.
  • Facilitate Legal Agreements
    Clients can sign legally binding contracts directly from the onboarding portal, minimizing delays in service initiation.
  • Streamline Financial Transactions
    Send invoices and collect payments through various options, ensuring a smooth financial onboarding experience.
  • Gather Client Data Effectively
    Utilize customizable intake forms to collect necessary client information and ensure a streamlined onboarding experience.
  • Enhance Client Interaction
    Use a single platform for all client messaging, reducing scattered communication and fostering better relationships.

Store

Shop storefront to productize services, with subscriptions, one-time items, and integrated client onboarding and invoicing.

  • Streamline Client Onboarding
    Easily manage all aspects of client onboarding and invoicing in one platform, ensuring a seamless client experience.
  • Sell Productized Services
    Create a professional storefront for clients to easily select and purchase packaged services with clear pricing.
  • Automate Recurring Payments
    Enable automated billing for subscriptions and manage client payments with greater ease and efficiency.
  • Enhance Client Engagement
    Provide clients with a secure portal where they can access services, send messages, and view invoices all in one place.

Invoicing

Get paid faster with modern invoicing software. Generate polished invoices in seconds and streamline invoice management for more efficiency.

  • Automate Billing Workflows
    Easily generate and manage both one-time and recurring invoices to maintain a consistent cash flow and simplify service billing for ongoing clients.
  • Protect Client Information
    Enterprise-grade SOC 2 and HIPAA compliance ensure that sensitive payment information remains secure, fostering client trust.
  • Simplify Client Payments
    Clients can pay invoices with a single click, enhancing their payment experience and improving the speed of transaction completion.
  • Streamline Client Experience
    Clients can manage their invoices, contracts, and payments in one location, enhancing their overall experience and satisfaction.
  • Enhance Brand Identity
    Customize invoices to reflect your brand, providing a professional appearance that reinforces brand identity with clients.
  • Minimize Overdue Payments
    Automatically send reminders to clients about upcoming payments, reducing the likelihood of late payments and improving cash flow.
  • Track Financial Performance
    Monitor billing performance and client payment behaviors in real-time, allowing for informed decision-making.

eSignature

In-portal signing of contracts with legally binding eSignatures.

  • Sign Contracts Seamlessly
    Enable clients to sign contracts directly within your branded client portal, enhancing user experience and streamlining the signing process.
  • Ensure Legal Compliance
    Utilize legally binding eSignatures to ensure that your contracts are enforceable and secure, complying with regulatory standards.
  • Track Contract Activity
    Automatically generate audit trails that detail when contracts are accessed and signed, improving transparency and accountability.
  • Enhance Brand Recognition
    Provide a signing experience that fully reflects your brand, helping to build trust and recognition among clients.
  • Maximize Efficiency
    Automate routine processes like contract requests and reminders to save time and minimize manual follow-ups.

File Sharing

Secure sharing of files within the client portal.

  • Share Files Securely
    Assembly’s file-sharing feature ensures that sensitive documents are transferred securely using SOC 2 and HIPAA compliance, while providing clients with a user-friendly interface to access and manage their files.
  • Automate File Creation
    Automatically generates files and folders according to client requirements, simplifying setup and reducing manual entry.
  • Integrate Your Cloud Storage
    Embed and connect existing storage solutions directly into your branded client portal for easier access to client files.

Payments App

Centralized client billing management, including services, invoices, subscriptions, payment links, and a branded store.

  • Facilitate Diverse Payment Options
    Easily accept payments through multiple methods, making transactions seamless and efficient for clients.
  • Automate Recurring Billing
    Generate invoices automatically and manage subscriptions for predictable revenue streams.
  • Create A Unique Shopping Experience
    Productize services and enable clients to purchase subscriptions and one-time items through a personalized storefront.
  • Gain Insights On Financial Activity
    Monitor payment activities, outstanding invoices, and understand financial performance at a glance.
  • Simplify Payment Collection
    Send direct payment links to clients for easy tracking and management of payments.
  • Process Refunds Effortlessly
    Clients can initiate refunds easily, with notifications and updated receipts for transparency.

Forms App

Create custom intake forms to collect client information.

  • Facilitate Information Gathering
    The Forms App allows you to create tailored forms that fit your specific data needs, ensuring you can collect all necessary information efficiently. You can design forms with multiple question types including short answers, long texts, multi-select options, and file uploads, allowing for a comprehensive approach to client data capture.
  • Enhance Client Engagement
    Automatic email and portal notifications help clients stay informed about pending forms, improving response rates and client interaction.
  • Customize Client Submission Options
    You can enable or disable multiple submissions per client to suit your workflow needs, allowing for flexibility in data collection.
  • Control Access to Forms
    Choose whether forms are visible to all clients or only those specifically shared, enhancing privacy and security in client interactions.

Messaging App

In-app messaging for client and team communication within the portal.

  • Enhances Client Communication
    The Messaging App allows secure, real-time conversations between clients and teams, ensuring no detail is lost in emails.
  • Enhances Channel Organization
    Keep conversations organized at the client level, ensuring everything remains relevant and accessible.
  • Improves Client Onboarding
    Create tailored welcome messages that introduce your firm and guide clients on using the portal effectively.
  • Facilitates Team Collaboration
    Internal notes can keep your team informed, allowing for better coordination without compromising client privacy.

Client Communication Tool

Ditch scattered emails and phone calls. Assembly’s client portal is a secure customer communication platform with built-in messaging and more.

  • Enhances Communication Seamlessly
    Clients can send messages in your portal or respond directly to messaging email notifications, leading to a seamless communication experience.
  • Ensures Data Protection
    Configure messaging with custom permissions and visibility to keep client communications secure and streamlined.
  • Saves Time and Reduces Overhead
    Automate responses, create helpdesk guides for common questions, and send automatic email reminders to clients.
  • Streamlines Document Exchange
    Clients can easily access files and share documents securely, reducing email-related complications.
  • Enhances Client Accountability
    Use integrated task management to keep both teams and clients informed about outstanding items.

References

Methodology and sourcing behind the figures shown above.

Client Communication and Portals

Search results for client-portal and adjacent customer-communication markets show recent estimates clustering between USD ~1.76–2.35 billion (2023–2025) for client-portal software, with related CCM and patient-portal reports showing higher growth trajectories (CAGRs ~7.8%–18.4%). I used the mid-point of reported current values (~$2.2B) to represent the broader "client communication and portals" segment and a conservative weighted-mid CAGR (~10.5%) between lower vendor forecasts (~7.8%) and higher subsegment forecasts (11–18%) to reflect inclusion of CCM, patient portals, and automation features.

Customer onboarding and activation

Primary explicit data comes from a market-research excerpt reporting the North America Customer Onboarding Software Platforms market at USD 978M (2025) with a projected rise to USD 3.95B by 2035 at a 15% CAGR. I extrapolated to a 2025–2026 global estimate of ~USD 2.0B by assuming North America is roughly half of the overall market (common for enterprise SaaS niches) and considered the strong AI-driven adoption signals in the other results (activation/time-to-value benchmarks, AI-native onboarding lift) as support for continued double-digit growth.

Payments and monetization

Estimate uses the recurring/ subscription payments market as the closest match for in‑app billing, subscriptions and event payments. Persistence Market Research values the global recurring payments market at US$82.9B (2026) with a 7.8% CAGR (2026–2033). Broader digital payments reports (Credence, Fortune) show larger adjacent markets (~USD140–147B) and higher CAGRs, indicating upside from embedded/real‑time rails; data‑monetization reports (Mordor) show the separate payment‑data monetization opportunity is much smaller (USD ~5.7B in 2026).

CRM and back-office automation

Estimate based on the global CRM market projection (coursera cites $320.99B by 2034) and applying an internal-market-share estimate for professional services-focused CRM + back-office automation. Rationale: CRM is a large, fast-growing software category (coursera projection). Professional services firms represent a meaningful vertical for CRM and automation (contracts, billing, workflow); assuming this vertical and adjacent back-office automation together capture roughly 10–15% of the broader CRM/automation spend yields an addressable market of about $8–15B today. AI-driven automation tailwinds—higher adoption of CRM automation and revenue lifecycle tools—support a mid-teens to low-teens CAGR; a 12% CAGR reflects strong AI adoption and workflow automation demand in professional services.

Low-code/no-code application platform

Estimated using multiple market reports for the overall low-code/no-code development platforms market. Fortune Business Insights reports a market valuation of USD 37.39 billion in 2025 and a projected CAGR of 29.10% (2026–2034). MarketsandMarkets and Gartner provide corroborating forecasts (MarketsandMarkets: CAGR ~28.1% to 2025; Gartner: lower LCAP-specific CAGR ~16.3%), so the broader platform segment’s current size is taken as ~USD 37.4B with high growth potential (~29% CAGR) consistent with major industry forecasts.

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