Critical Solutions. Durable Returns.

We acquire, build, and grow specialized industrial businesses that solve critical, complex challenges for our customers while delivering private equity-like returns for our investors.

Perimeter Group brings together exceptional businesses that help solve customers’ difficult problems and achieve critical outcomes. Across our portfolio, our companies are defined by the importance of what they do, the quality of how they do it and the trust they earn from the customers they serve.
While they operate in many markets, our businesses share a common profile: specialized expertise, small part of the overall solution in attractive niche markets, and products or services that are essential to solving the customer’s most complex challenges.

Strategy

A repeatable model for durable growth.

Perimeter combines decentralized leadership with a consistent operating model. We place decisions with the leaders closest to customers, pairing operating autonomy with clear accountability and aligned incentives.

In every business, teams rigorously apply our Operational Value Drivers: Profitable New Business, Continual Productivity Improvement, and Value-Based Pricing. We reinforce that execution through disciplined capital allocation, pursuing the right opportunities to serve customers, strengthen our businesses, and compound long-term value across the portfolio.

Our Businesses

Perimeter Solutions

Firefighting retardants, equipment, services, logistics, and operational support for wildfire response and prevention.

Solberg Fire

Firefighting agents, equipment, and solutions for industrial, municipal, aviation, energy, military, wildfire, and other critical fire protection applications.

Medical Manufacturing Technologies

Highly engineered manufacturing equipment, automation solutions, aftermarket parts, consumables, and services for complex medical device production.

Monaco Enterprises

Comprehensive life safety, alarm and notification solutions for demanding end markets.

Phosphorus Derivatives Inc.

Advanced P2S5 chemistry used in lubricant additives and specialty applications where consistency, unwavering quality, and supply reliability matter.

Intelligent Manufacturing Solutions

Sustainment, support and growth for products and solutions that are part of higher-level systems used in the Aerospace and Defense, Marine, Ground, Energy and Industrial markets.

Acquisitions

A home for exceptional businesses.

Perimeter acquires leading businesses from across the broad industrials landscape. These businesses are united by their fit with our strategy — we are strategy specific, not industry specific. These businesses serve essential roles within larger value streams and solve critical, complex customer problems. We preserve the expertise, culture, and operating autonomy that made them successful while providing the capital and resources to accelerate growth.

Working alongside management, we earn the right to implement our strategy and apply our Operational Value Drivers—Profitable New Business, Continual Productivity Improvement, and Value-Based Pricing—to build enduring value for customers and the business.

Safety & Environment

How the work gets done is part of the value it creates.

Across Perimeter Group, safety and environmental responsibility are built into how our businesses operate. That standard helps protect our teams, manage risk, and uphold the trust our customers place in us.

Employment

High standards. Real ownership. Greater opportunity.

Across Perimeter Group, high performers take on meaningful responsibility, solve important problems, and grow as quickly and as far as their capabilities allow. We expect people to think clearly, act decisively, communicate directly, and own outcomes. These expectations are the cornerstone of Perimeter Group, so you will work alongside other high performers across our businesses, see the impact of your contributions, and earn opportunities to grow your career.