FieldFlo Secures $35 Million Growth Investment from Mainsail Partners

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DENVER--(BUSINESS WIRE)--Oct 24, 2025--

FieldFlo, a leading provider of project and safety management software for specialty subcontractors, announced that it has raised $35 million in growth capital from Mainsail Partners, a growth equity firm investing in vertical SaaS companies. The investment will help FieldFlo accelerate product innovation and continue supporting the operational, safety, and compliance needs of high-risk specialty contractors across North America.

FieldFlo’s cloud-based platform helps subcontractors simplify project management, safety, and compliance workflows. From time tracking and certifications to incident reporting and inventory management, FieldFlo enables companies to digitize mission-critical processes that were previously managed through spreadsheets and paper forms. Its mobile-first design ensures that both field and office teams can operate efficiently while maintaining compliance with OSHA, EPA, and state-level safety requirements.

“Our mission from day one has been simple—to make life easier for subcontractors by eliminating the inefficiencies that slow down projects and increase risk,” said Roni Szigeti, Co-Founder and CEO of FieldFlo. “Coming from the abatement and demolition industry, we know how complex safety and compliance management can be. Partnering with Mainsail, who has deep experience scaling construction and field service platforms, will help us deliver even more value to our customers as we expand our platform.”

FieldFlo serves as both a core system of record and a risk management tool, helping contractors reduce on-site incidents, lower insurance claims, and strengthen underwriting profiles. The platform is praised by users for its intuitive interface, configurability, and industry-specific workflows.

“Specialty subcontractors face growing regulatory, safety, and documentation requirements, yet many still operate without a dedicated system of record,” said Tollie Brown, Principal at Mainsail Partners. “FieldFlo’s purpose-built platform solves these challenges with remarkable usability and depth. We’re excited to partner with Roni, Brittany, and the team as they continue to define this category.”

“This partnership marks an exciting step for FieldFlo,” said Brittany Szigeti, COO of FieldFlo. “With the operational support of Mainsail’s Growth Team and their deep experience in construction technology, we’ll keep doing what we do best — enhancing the field experience, expanding our platform, and growing our talented team to better serve our clients and the industry at large.”

FieldFlo continues to invest heavily in product innovation with several new tools designed to enhance safety and compliance outcomes. The recently launched Safety Academy provides a centralized training and certification platform to help contractors proactively manage worker education and compliance documentation. Meanwhile, FLŌTime, FieldFlo’s enhanced digital timesheet solution, provides compliant labor tracking - offering verifiable proof of on-site activity and compliance with labor standards.

About FieldFlo

FieldFlo is a project and safety management software platform built for specialty subcontractors in high-compliance industries. Designed by former subcontractors, FieldFlo simplifies project management, compliance tracking, and field reporting with an intuitive, mobile-first platform. By enabling contractors to stay audit-ready and operate more efficiently, FieldFlo helps companies save time, reduce risk, and improve safety performance. For more information, visit www.fieldflo.com.

About Mainsail Partners

Mainsail Partners is a growth equity firm that invests in bootstrapped B2B software companies to help them grow into market leaders. Our team is purpose-built to include experienced investors and software operators who help founders build great teams, develop industry-leading products, design data-driven and scalable infrastructure, harness the power of AI to drive productivity and innovation, and grow market share. Mainsail’s hands-on support and best practices are delivered through a collaborative approach that respects founder-led cultures and helps build on each company’s commitment to its people and customers. With offices in Austin and San Francisco, Mainsail Partners has raised nearly $4 billion in committed capital and partnered with 100+ companies over the last 22+ years. For more information, visit www.mainsailpartners.com.

View source version on businesswire.com:https://www.businesswire.com/news/home/20251024275593/en/

CONTACT: Media Contact

Kristy DelMuto

Mainsail Partners

(415) 940-2085

[email protected]

KEYWORD: COLORADO UNITED STATES NORTH AMERICA

INDUSTRY KEYWORD: SOFTWARE CONSTRUCTION & PROPERTY FINANCE DATA MANAGEMENT PROFESSIONAL SERVICES TECHNOLOGY OTHER CONSTRUCTION & PROPERTY MOBILE/WIRELESS

SOURCE: FieldFlo

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PUB: 10/24/2025 09:00 AM/DISC: 10/24/2025 09:00 AM

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