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Allseated has become Prismm

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Take the Stress Away from Seating Guests 

Manage your guest list, assign seating charts based on your host’s preferences, and ensure every guest has a consistent and memorable experience in a platform that takes your worries of missed details away, we’ve got you covered!
A digital twin of an event space showing several tables for seating guests. The venue location overlooks a harbor city view.


With the Prismm platform, get ready to turn your seating chart assignment from stressful pen and paper to sensational with a set of automated seating chart tools that make every aspect of seating planning a breeze. From designing your floor plan to managing your guest list to making sure your cousin has her gluten-free meal, never miss a detail again!

3D tables setup for someone to seat their guests in a designed floor plan.

Import and Seat Guests

Immersive 3D Visualization

Easily import and manage guest lists within your created experience. Seat your guests at tables in your designed floor plan with a few clicks.

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A room from an event space with small tables and booths. It's meant to demonstrate how information crucial for an event can be easily imported.

All Your Guest Information in One Place

When importing your guests, gather key details such as their name, seats in their party, contact information, RSVP status, meal type, and any other information crucial to your event.

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A layout for a two-story space with tables and chairs setup.

Take Notes on Guest Preferences

Keep track of guest preferences, special requests, and more to ensure everyone feels welcomed and cared for. No mom-zillas here!

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The one source of truth to unite them all

Blue, green, teal — everyone sees things in their own unique way, which is why it’s ideal to manage them all from one centralized event planning platform that enables you to cut through confusion and get to commitment.


A man focuses on his laptop while holding a cup of coffee.

Effortlessly Seat Your Guests

Managing multiple events is easy, group guests to tables and assign seats to your linked guests on the selected floor plan allowing flexibility when planning multiple events with a shared guest list.

A woman leans back on a sofa and plans the seating for her guest list.

Group Guests for Easy Seating

Sort your guest list into different groups such as VIP guests or a wedding party to simplify seat assignments and designate which parties may need special service accommodations over others.

A woman sits at a table laughing. The cause of her laughter is ambiguous. However, it's likely that moving from color coding lists by hand to using technology to do it is making her laugh.

Color Code Tables

Easily color code tables, making it simple to see which tables contain what seating chart assignments for tactical day-of execution with your team.


Allseated (now Prismm platform) has made planning events so much easier! I cannot imagine going back to PDF files nor can I imagine what it was like before we were able to collaborate in real time with our clients. We adore the 3D tools and seeing our floor plans come to life is a game changer for our clients.”

Warren Dietel
Owner & President, Puff N Stuff Catering & Events


  • The Prismm platform is a transformational bridge between real and virtual worlds, evolving how people visualize, design, plan, sell, and experience spaces.

  • Put simply, it’s software that interacts with real-world locations. It’s used to visualize, manipulate, analyze, display, and record physical environments.

  • You can create multiple floor plans for different layout options of the same event.

  • No, we want to make this technology as accessible as possible. All that is needed is an internet connection. Easy!

A grand ballroom from The Plaza New York with ornate decor is set up for an event with round tables covered in white tablecloths and white chairs arranged around each table.

Customer profile

Changing spaces at the Plaza


At the Plaza, the hottest spot north of Havana, music and passion were always the fashion with CPS Events overseeing all social, corporate, and non-profit events. And the event managers needed a platform to create to-scale renderings of their spaces for each new event. The perfect challenge for Prismm to answer.

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