Ressio was founded by Mitchell Kasselman in 2022.

How much funding has Ressio raised?

Ressio has disclosed $11.7M raised across 2 rounds.

Where is Ressio headquartered?

Ressio is headquartered in Washington, US.

Ressio

Washington, US · Founded 2022 · Delaware corporation

Ressio is a construction management platform for custom home builders and remodelers that combines estimating, proposals, budgets, selections, scheduling, change orders, invoicing, and client communication in one system, with QuickBooks syncing for cost tracking. It includes an AI layer called Mason that reads and writes across projects, budgets, schedules, and client threads to automate workflows.

AI & Machine LearningConstruction TechSaaS

Founders & leadership

Ressio was founded in 2022 by Mitchell Kasselman.

Mitchell KasselmaninFounder

Yu LiuNamed on SEC filing

Board

Jacob DeMarcoBoard director

Sheldon LewisBoard director

Reported raises · per SEC filings

Form D private placements

$11.7M disclosed across 2 rounds · 2023–2026

▶$8.7MraisedJan 2026 · 8 investors · Other Technology

Rule 506(b)

Officers, directors & promoters on the filing

Yu LiuExecutive Officer, Director, Promoter
Jacob DeMarcoDirector
Sheldon LewisDirector
Mitchell KasselmanExecutive Officer, Director, Promoter

Offering amount: $8.7M
Amount sold: $8.7M
First sale: Jan 2026
Incorporated: Corporation, Delaware, 2022
Federal exemptions: 06b

Full filing on SEC EDGAR ↗

▶$3MraisedOct 2023 · 1 investors · Other Technology

Rule 506(b)

Officers, directors & promoters on the filing

Mitchell KasselmanExecutive Officer, Director, Promoter
Yu LiuExecutive Officer, Director, Promoter

Offering amount: $4M
Amount sold: $3M
First sale: Sep 2023
Incorporated: Corporation, Delaware, 2022
Federal exemptions: 06b

Full filing on SEC EDGAR ↗

Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.

Competitors · 2

by search overlap

Procore21 shared keywordsAll-in-one construction management software platform

Adaptive16 shared keywordsAdaptive is an AI project accountant for construction firms that automates financial tracking, change order management, invoicing, and vendor compliance across the project lifecycle. It integrates with existing accounting systems to serve general contractors, specialty trades, and developers with $5M–$1B in revenue.

Companies competing with Ressio for the same Google search keywords, organic and paid, via search-intersection analysis.

Frequently asked questions

What does Ressio do?: Ressio is a construction management platform for custom home builders and remodelers that combines estimating, proposals, budgets, selections, scheduling, change orders, invoicing, and client communication in one system, with QuickBooks syncing for cost tracking. It includes an AI layer called Mason that reads and writes across projects, budgets, schedules, and client threads to automate workflows.
Who founded Ressio?: Ressio was founded by Mitchell Kasselman in 2022.
How much funding has Ressio raised?: Ressio has disclosed $11.7M raised across 2 rounds.
Where is Ressio headquartered?: Ressio is headquartered in Washington, US.