OUR STORY
The operating system for the events that move your business forward.
Mostest replaces spreadsheets and scattered vendor threads with one AI-powered platform — so your team can host, and scale every event without the overhead.
Why we’re building Mostest
Every meaningful moment in our careers was built in rooms — launches, dinners, summits, offsites — yet the tech powering those rooms hasn’t meaningfully changed in decades. Teams still juggle spreadsheets, email threads, and one heroic coordinator holding it all together.
We’re building the operating layer for corporate events at every budget: AI that drafts the plan, a vetted network that staffs it, and a single workspace that runs it. So the rooms that move your business forward stop being a inefficient fire drill and start being the repeatable advantage you deserve.
Built the way modern teams move
Async, mobile-first, collaborative. Mostest fits the way your team already works — not the other way around.
AI handles the ops
Briefs, budgets, vendor outreach, timelines, follow-ups. Your team brings strategy and taste; Mostest does the rest.
A vetted vendor network
Direct access to the venues, caterers, and producers we’d book ourselves.
Events worth showing up for
We obsess over the details that turn an invite list into a community — because that’s where real business outcomes start.
WHY WE CARE ABOUT EVENTS
Events are the most underrated growth lever — and the most human one.
One night in a room beats six months of cold outreach.
Pipeline, partnerships, hires, press — every meaningful business outcome traces back to a room someone bothered to put together. Events are the highest-ROI GTM motion most teams underuse, because the operational lift is brutal. We remove the lift so the leverage compounds.
The rooms you’re in shape the life you build.
Co-founders, mentors, customers, lifelong friends — the inflection points of a career almost always start with someone hosting something. Gathering well is one of the most underrated skills of our time. We make it easier so more of it happens.
A NOTE FROM THE FOUNDERS
We started Mostest after one too many Sundays rebuilding the same spreadsheet at 1am — chasing vendor quotes, reconciling a budget that never balanced, and trying to make a 200-person dinner feel intentional instead of improvised.
Between us we’ve produced launches for Fortune 500 brands, summits for top-tier funds, and more founder dinners than we can count. Every time, the pattern was the same: world-class people, ambitious goals, and tooling that looked like it was built in 2008.
Mostest is the platform we wished we had — one that compresses weeks of coordination into hours, protects your margin, and treats every guest experience like it matters.
Let’s go build something memorable.
Make your next event your strongest growth channel.
Book a 15-minute consult. We’ll show you how Mostest plans, books, and runs your next event in less time than it takes to brief an agency.
Meet the team
Sarah Klingman
Co-founder & CEO
Aaron Kennedy
Co-founder & CTO