Top 20 Systems Integrators in Construction in 2026

Technology is now core to the built environment. Fire safety, access control, video surveillance, audiovisual, and networking systems increasingly appear in the initial proposal, fueling the rise of the “systems integrator” as a distinct construction trade.

Every year, SDM Magazine ranks industry leaders in security and building-systems integrations. The ranking below comes from SDM's 2026 report, organized by 2025 North American systems-integration revenue and including year-over-year (YoY) growth. Across the list’s top 100, integration revenue rose to a record $9.72 billion in 2025.

Top 20 Systems Integrators (Security & Building Systems)

Source: SDM 2026 Top Systems Integrators (2025 North American systems-integration revenue). Growth is versus the 2025 edition (2024 revenue).

Another View: Top 10 by Total Revenue

The ranking above measures systems-integration revenue specifically. Ranked by total company revenue instead, the order shifts because some firms do far more than integration work.

Source: SDM 2026 Top Systems Integrators, Top 10 by total revenue. 

Systems Integrators to Watch in 2026 

These are the fastest-growing firms on SDM's 2026 list—the ones acquiring aggressively, landing new contracts, or otherwise climbing fastest. These companies are concentrated in the middle of the overall list, fueled largely by acquisitions and data-center demand. At the very top, the pattern reverses: Convergint held #1 despite essentially flat revenue; Securitas Technology and Everon grew modestly (2% and 13%); and Kastle Systems slipped 23%, the steepest drop in the top 20. 

1. Pye-Barker Fire & Safety (+61%) 

HQ: Alpharetta, GA | 2025 Revenue: $314.3M 

The biggest mover on the list is Pye-Barker Fire & Safety, with systems-integration revenue jumping 61% and its ranking climbing from #10 to #7.

Acquisitions are a major part of that growth. Pye-Barker acquired 57 fire alarm, sprinkler, suppression, and security companies in 2025 alone, expanding to 9,000 employees across 47 states. Rather than consolidating everything into one centralized operation, the company has largely maintained a locally operated branch model while adding national scale and a broader mix of fire, life-safety, and security services.

2. ORR Protection (+36%) 

HQ: Louisville, KY | 2025 Revenue: $120.9M 

ORR Protection has been in the fire suppression business since 1971, but it’s finding plenty of room to grow. Systems-integration revenue jumped 36% in 2025 as the company continued expanding its reach in mission-critical markets. It acquired Compass Fire Protection, adding a foothold in the Pacific Northwest, while rolling out new fire-protection offerings for fast-growing areas like data centers and energy storage.

3. Stone Security (+34%) 

HQ: Salt Lake City, UT | 2025 Revenue: $106.2M 

Stone Security crossed the $100 million mark in 2025, with systems-integration revenue growing 34%. It was also a year of change for the security integrator: Stone became part of BearCom following a December 2024 acquisition and later expanded into Canada through the integration of The Surveillance Shop, extending a footprint that already included offices across the U.S., Mexico, and Brazil.

4. M.C. Dean (+33%) 

HQ: Tysons, VA | 2025 Revenue: $574.5M 

M.C. Dean stands out for the sheer size of its growth. Systems-integration revenue climbed 33% to $574.5 million, making it the fifth-largest integrator on SDM’s list. The privately held company works across electrical, security, networking, automation, and other complex systems, with a heavy presence in data centers, government facilities, and other mission-critical infrastructure.

5. Security 101 (+33%) 

HQ: West Palm Beach, FL | 2025 Revenue: $282.5M 

Security 101 grew systems-integration revenue 33% in 2025, and its national footprint is growing right along with it. The company has been steadily adding both independent integrators and existing franchise locations to its corporate network, expanding in markets including New Jersey, Houston, San Antonio, Minneapolis, and Washington, D.C. By October 2025, it had completed 21 strategic acquisitions.

6. NextGen Security (+31%) 

HQ: Exton, PA | 2025 Revenue: $124.1M

NextGen Security jumped 31% to $124.1 million in systems-integration revenue, enough to move it into SDM’s top 20. The company specializes in electronic security for complex commercial and industrial environments and has been expanding its reach, including through its acquisition of Florida-based Micro Security Solutions in late 2024.

7. Per Mar Security Services (+20%)

HQ: Davenport, IA | 2025 Revenue: $82.7M 

Per Mar Security Services is growing while taking a somewhat different path than many of the consolidators around it. The family-owned company increased systems-integration revenue 20% in 2025 and now employs more than 3,100 people across the Midwest. It remains independent after more than 70 years in business, while continuing to make targeted acquisitions and invest in newer offerings like intelligent video monitoring.

Honorable Mention

One more company is worth watching even without a year-over-year growth rate: Cobalt Service Partners. Founded in late 2023, Cobalt debuted at #10 with $226.5 million in systems-integration revenue after rapidly building a portfolio of commercial access and security businesses. The company added six more businesses in 2025 alone, bringing its total to 17 acquisitions by year-end.

What It Takes to Manage Thousands of Projects a Year

Scaling a systems-integration business is hard. Between compliance hurdles, contract risks, and payment delays, even contractors who excel at their trade can struggle with the business side of growth. Reaching nine figures in revenue and managing tens of thousands of projects each year takes strong systems behind the scenes.

Some of the top systems integrators rely on tools like Siteline—construction billing software built specifically for trade contractors. They use it to bill faster, increase billing volume without adding headcount, shave days off A/R workflows, and get paid three weeks faster.

If accelerating your cash flow would make a difference for your subcontracting business, check out Siteline today.

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Frequently Asked Questions

Who is the largest systems integrator in construction? 

Convergint Technologies is the largest, with $2.41 billion in 2025 systems-integration revenue, ahead of Securitas Technology ($1.18B) and Everon ($950.2M).

Which systems integrators are growing the fastest?

Among the top 20, Pye-Barker Fire & Safety grew the fastest at 61%, followed by ORR Protection at 36%, Stone Security at 34%, and M.C. Dean and Security 101 at 33% each.

What do systems integrators do in construction? 

Systems integrators design, install, and maintain building technologies such as fire and life-safety systems, access control, video surveillance, audiovisual systems, and networking infrastructure.

Did any top integrators change names? 

Yes. Cook & Boardman is now CBX Solutions, AVI Systems rebranded to FORTÉ, Everon is the former ADT Commercial, and Securitas Technology was formerly STANLEY Security.