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Ressio
Washington, US · Founded 2022 · Delaware corporation · 50 employees on LinkedIn · 1 known investors
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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.
Also known as Ressio Software
Founders & leadership
Ressio was founded in 2022 by Mitchell Kasselman.
Board
Investors · 1
How we know: Blueprint Equity's portfolio page · a partner's Signal profile · funding news · technical.ly · Not right? Tell us
Reported raises · per SEC filings
Form D private placements$11.7M disclosed across 2 of 3 rounds · 2023–2026
▶$8.7MraisedJan 2026 · 8 investors · Other TechnologyRule 506(b)
- 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
▶$3MraisedOct 2023 · 1 investors · Other TechnologyRule 506(b)
- 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
Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.
Company profile
researched Aug 2026Ressio Software is a Washington, D.C.-based construction management software company serving residential home builders, remodelers, and contractors. Its platform consolidates day-to-day project execution — estimating, scheduling, budgets and project finances, selections, task execution, document and vendor documentation management, and stakeholder collaboration — into a single system, and pairs it with an interactive experience for homeowner clients. The company positions the product as a replacement for spreadsheets, texts, and fragmented manual tools used by custom home builders.
Ressio embeds AI capabilities directly into core workflows, particularly estimating services and project management, with the stated aim of automating repetitive tasks; the company describes its approach as prioritizing reliability, transparency, and practical usability over experimental features. Following its January 2026 Series A, Ressio said it would expand AI functionality, product and engineering teams, integrations, and configuration options for different builder workflows, as well as its customer success, onboarding, and support organizations.
Founding story
Ressio's founders state they started the company because custom home building — described by the team as one of the most complex businesses — was still commonly run on spreadsheets, text messages, and disconnected tools, and they sought a single platform where jobs, communications, finances, and decisions live together.
Business model
Ressio sells a software platform to residential construction businesses, with prospects entering through a free product demo. It also organizes a customer-facing conference, RessioCon, scheduled for Washington, D.C. in October 2026, with ticketed admission and early-bird pricing.
Latest developments
In January 2026 Ressio announced Series A financing led by Blueprint Equity, to be applied to AI capability expansion, product and engineering hiring, deeper integrations, expanded workflow configuration, and growth of customer success, onboarding, and support teams. The company is also hosting RessioCon 2026 in Washington, D.C. in October 2026.
▸Full profile — market position, technology, go-to-market, geography, history
Market position
Ressio competes in construction management software for the residential segment, targeting builders it describes as historically underserved by modern software; its lead investor cited product execution and customer adoption as reasons for backing the company.
The company emphasizes purpose-built design for residential construction workflows rather than general-purpose construction or automation tooling, AI features embedded in core workflows instead of standalone automation, ease of use, and responsiveness of customer support.
Technology
A cloud construction management platform covering estimating, scheduling, budgeting and project financials, selections, task execution, and document and vendor management, with AI features embedded into core workflows such as estimating and project management to automate repetitive tasks.
Go-to-market
Direct sales driven by free product demos positioned as low-friction and short-cycle, a rapid product development model based on direct customer input, investment in onboarding, implementation and support teams, and a company-hosted user conference (RessioCon).
Residential construction firms: custom home builders, remodelers, and contractors, along with their vendors and homeowner clients who use the platform's interactive client experience.
Geography
Headquartered in Washington, D.C., United States.
History
The company was founded by Mitchell Kasselman, who serves as CEO. In January 2026 it announced Series A financing led by growth equity firm Blueprint Equity, intended to accelerate product development, AI investment, and customer success capacity.
Compiled by commissioned research from 6 cited public sources — announcements, filings, and press listed under research sources below.
Key figures
latest reportedCompany-reported or press-reported figures, each dated to when it was claimed — not independently audited.
Related companies · 2
Companies working in the same space as Ressio.
Timeline · 2
launches, deals, and filingsRessio announced RessioCon 2026, a ticketed company conference to be held in Washington, D.C. in October 2026, with early-bird pricing extended to August 24.
Ressio Software announced Series A financing led by growth equity firm Blueprint Equity, to fund expanded AI capabilities, product and engineering development, and customer success, onboarding and support teams. The amount was not disclosed in the announcement.
Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.
In the news
▸Research sources · 6
primary sources listed
- Ressio Software Raises Series A Led by Blueprint Equity to Accelerate AI Investment for Residential Buildersfinance.yahoo.com · web
6 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does Ressio do?
- Ressio is an AI-enabled construction management platform for residential home builders and remodelers.
- Who founded Ressio?
- Ressio was founded by Mitchell Kasselman in 2022.
- Who are Ressio's investors?
- Ressio's investors include Blueprint Equity.
- How much funding has Ressio raised?
- Ressio has disclosed $11.7M raised across 2 of its 3 known rounds.
- Where is Ressio headquartered?
- Ressio is headquartered in Washington, US.