Mostest

Mostest is an event planning platform that combines expert human support with intelligent technology to handle planning, booking, and execution for weddings, corporate events, and private celebrations. Clients can choose from à la carte concierge services, professional staffing and coordination, or a self-guided AI Planning tool, with the company reporting it has powered over 3,000 events and can compress the time from brief to booked event to 48 hours.

Traction 10/10

New York City, New York, United States · HQ

Founded 2023987K+ followers

Events
Artificial Intelligence
AI Agents
Software Only
Commerce & Shopping

Updated 3 days ago

Funding

Raised to date

$4MRaised to date based on public sources. This may differ from the amount the company actually raised and is based only on what is publicly available on the internet.

across 1 round

CQCWJDLRNL+4

$4M · Seed

Announced Oct 2026

Disclosed cumulative: $4M

RoundDateAmountValuationInvestors

Founders

1 founder

Sarah Klingman

Founder + CEO

Product

Problem

Planning events, whether weddings, corporate functions, or private celebrations, is a time-consuming process that requires sourcing venues, coordinating multiple vendors, and managing complex logistics. Teams and individuals often rely on spreadsheets, email threads, and a single coordinator, making the event feel like a second job and limiting the time available for strategic or personal priorities.

Solution

Mostest provides a full-service event planning platform that combines expert human support with intelligent technology to handle planning, booking, and execution. Clients can choose from à la carte concierge planning for specific services like design or vendor booking, professional staffing and coordination for on-site execution, or a self-guided AI Planning tool that manages the entire process from brief to booked event. The platform offers a vetted vendor network, handles venue and vendor sourcing, and manages budgets, timelines, and follow-ups, allowing clients to focus on the event experience itself. Mostest's approach compresses weeks of coordination into hours and provides a single source of truth for all event details.

Target Audience

Mostest primarily serves companies planning corporate events, as well as individuals organizing weddings and private celebrations across the United States. The platform is designed for those who need flexible, scalable support—from full-service planning to self-guided AI tools.

Features

AI Planning tool (beta in NYC) that automates event briefs, budgets, vendor outreach, timelines, and follow-ups
À la Carte Concierge services for event design, vendor booking, and production support
Professional staffing and day-of coordination, including vendor and timeline management
Vetted vendor network with direct access to venues, caterers, and producers
Mobile-first, collaborative platform designed for async team workflows
Consolidated vendor proposals and single-point-of-contact budget management