Best Commercial Security Systems Companies for Multi-Site Businesses in 2026: National Account Programs vs Regional Integrators

Plenty of commercial security systems companies tell multi-site businesses they offer national coverage. Far fewer can put a licensed technician in every one of your ZIP codes, price every site against the same scope, and hand you one contract instead of twelve. This roundup ranks the integrators that genuinely serve multi-site businesses, shows the method behind the order, and marks where a strong regional integrator beats every national name on the list.

Which security integrator is best for a multi-site business? The short answer

Above roughly 50 to 100 sites spread across several states, the realistic shortlist is Everon, Convergint and Securitas Technology, with Pavion and Allied Universal Technology Services behind them. For 10 to 25 sites in one or two states, a strong regional integrator usually wins. The deciding variables are branch coverage in your ZIP codes, self-performed work, per-site installed cost, per-site monitoring rate, contract structure and equipment ownership at term end.

Below that threshold, geography decides more than the count. Twelve locations in Ohio, Indiana and Kentucky are a regional job; twelve locations in twelve states are a national-account job even though the count is small, because no regional firm can self-perform in all of them.

How we ranked these commercial security systems companies

Updated October 2026. Ranked on ZIP-level coverage, self-performed versus subcontracted work, platform experience, per-site installed-cost transparency, monitoring rate and contract term, equipment ownership, and licensing and insurance verification. We do not install, monitor or sell security systems and we take no placement fees from any firm named here.

The only public rankings of security integrators are the two SDM league tables: the SDM 100, ordered by recurring monthly revenue, and the Top Systems Integrators report, ordered by North American integration project revenue. They are useful and dated, and we cite them throughout, but revenue answers a question a facilities director is not asking. It tells you who is biggest, not whether the firm has a branch within 60 miles of your Tulsa warehouse or what your fourth-year monitoring rate will be.

So we weighted the criteria the way a portfolio buyer has to:

• ZIP-level coverage (25%). Branch count and state coverage from the firm's own locator, not a sales deck.
• Self-performed versus subcontracted work (20%). None of the national firms publishes a self-perform ratio. We note what each discloses and tell you what to demand in writing.
• Per-site installed cost and monitoring rate transparency (20%). Whether the firm will price a standardized per-site specification rather than a lump sum.
• Contract term, renewal and equipment ownership (20%). Master agreement availability, escalator language and whether hardware is yours at termination.
• Platform experience and systems covered (15%). Intrusion, video, access control, fire and life safety, and monitoring under one roof, on the platforms you already run.

Licensing and insurance are a pass/fail gate rather than a weighted score, the same gate we apply to contractors in our own network, verified against state boards and insurance certificates rather than taken on a phone call.

Fit by footprint: which type of integrator wins at each size

5 to 20 sites in one or two states

A regional integrator is usually the best business security system partner here, and it is not close. The SDM 100 is full of regional firms with 10 to 30 branches concentrated in one part of the country: Bay Alarm with 17 locations and $256 million in 2024 revenue centered on California, Per Mar Security with 31 Midwest locations, CPI Security with 11 Southeast locations and Guardian Protection with 15 locations in the Mid-Atlantic, all per the 2025 SDM 100 (April 2025). A regional integrator beats a national one whenever every site sits inside the regional firm's own branch network, because you get self-performed labor and a single accountable owner without paying national-account overhead.

20 to 100 sites across three or more states

This is the contested band, where commercial business security systems stop being a local purchase. Pavion, Vector Security Networks and Allied Universal Technology Services are built for it, Everon and Securitas Technology will take it, and Pye-Barker belongs on the list if fire and life safety anchors the scope. A national program starts to earn its overhead when at least a quarter of your sites fall outside any single regional firm's branch map, or when one access control database and one video platform across sites matter more than the lowest per-site price.

100 to 1,000+ sites

National account programs exist for this band. Everon, Convergint and Securitas Technology have the branch density, dedicated account operations teams and platform experience to run a 40-state rollout to one standard. The question here is not whether they can cover you but how much thin-market work goes to partners, and what the master agreement says about escalators and ownership.

Comparison table: integrators for multi-site businesses

Location and headcount figures are as reported to SDM for the 2025 SDM 100 (RMR as of December 31, 2024), except where the firm's own current page is cited. SDM's 2026 SDM 100 (May 2026) reorders the top of the table to ADT, Securitas Technology, Pye-Barker, Everon, Vector Security and Pavion, but publishes location counts only to registered readers.

Profiles: what each firm is best at, and when it is the wrong call

1. Everon

Everon is the former ADT Commercial business and the most explicit national-account operator on this list. Its National Account Program promises one dedicated point of contact from order entry through installation, monitoring, maintenance and billing, a National Account Operations Center as the service hub, and quarterly business reviews for premier accounts. It reported 117 locations and $841 million in non-residential installation revenue for 2024 to SDM, ranked No. 4 on the 2026 SDM 100 and No. 3 on SDM's 2026 Top Systems Integrators report, and closed its acquisition of ADT's multifamily business on October 1, 2025. Everon is the right call for 100-plus sites that need intrusion, video, fire and monitoring from one vendor on one invoice. It is the wrong call for a 15-site regional footprint where national overhead buys nothing a local firm cannot deliver.

2. Convergint

Convergint has been No. 1 on SDM's Top Systems Integrators report for nine consecutive years (2026), with $2.6 billion in reported revenue and more than 11,000 colleagues. Its US locator lists 117 Technology Centers across 41 states (as of October 2026), the densest domestic branch map of any pure integrator here. Convergint's strength is enterprise integration: standardizing one access control and video platform across a large estate, and sustaining it through local service teams. Does the No. 1 ranking make it the best integrator for your portfolio? Not by itself: SDM ranks on integration project revenue, a measure of scale rather than of coverage in your ZIP codes or per-site price. Convergint is best for complex, platform-heavy portfolios in healthcare, data centers, utilities and higher education. It is a poorer fit for a retail or restaurant chain that mainly needs intrusion panels monitored cheaply across 200 small boxes.

3. Securitas Technology

Securitas Technology (the former Stanley Security) was No. 2 on both the 2025 and 2026 SDM 100, reporting $100 million in RMR as of December 31, 2024 and an estimated $3.4 billion in gross revenue. Its Global Clients Program is the most fully documented enterprise program on the list: a single point of contact, a Global Program Charter with KPIs, quarterly reviews, and the SecureStat HQ platform for consolidated reporting. It is also the one firm that states plainly how it covers thin markets: 44 markets served directly with 5,000-plus technicians, plus a Certified Partner Program that extends coverage to 18 more. That candor is useful, and it is the question to put to every other bidder. Securitas Technology is best for multinational and multi-state portfolios that want monitoring, video, access and electronic article surveillance from one provider. It is the wrong call for buyers who need owned, non-proprietary equipment at term end without negotiating for it.

4. Pavion

Pavion reported 71 locations and $618 million in non-residential installation revenue for 2024 to SDM, ranked No. 6 on the 2026 SDM 100, and told SDM it has concluded its migration to "one Pavion" after a run of acquisitions. Its Global and National Account Team assigns a dedicated account manager as a single point of contact across fire, security, critical communications and AV. Pavion fits 20 to 200 site portfolios where fire alarm and security are scoped together, particularly in property management, destination retail and healthcare. It is the wrong call where you need a branch in every market you operate in; check the locator against your site list before shortlisting.

5. Allied Universal Technology Services

Allied Universal is first a guarding company, and its technology services division is built to bundle access control, video, intrusion, fire alarm and emergency communication with the guard contracts it already holds. It cites 350-plus branches across North America for the combined business, operates a Monitoring and Response Center in Richardson, Texas, and sells GSOC as a service. It has grown the technology arm through acquisitions, including Securadyne Systems and SSC Security Services Corp. in July 2026. Allied Universal is best for portfolios that already run Allied guards and want one vendor accountable for people and technology. It is the wrong call for a buyer who wants an integrator with no stake in selling guard hours.

6. Pye-Barker Fire & Safety

Pye-Barker acquired 57 companies in 2025 alone and now reports 250-plus locations, 9,000 team members and operations in 47 states, per its March 17, 2026 release; it rose to No. 3 on the 2026 SDM 100 with 90 percent RMR growth. Its anchor is fire protection: alarm, sprinkler, suppression and inspection, with intrusion, video and access added through acquired alarm companies. Pye-Barker is the best choice when the portfolio's recurring spend is dominated by fire inspection and monitoring across many states and you want one vendor holding every fire license. It is the wrong call for an access control or video standardization program, where the acquired branches may still run different platforms and processes.

7. Vector Security Networks

Vector Security reported 58 locations and $432 million in 2024 gross revenue to SDM and held No. 5 on both the 2025 and 2026 SDM 100. Its National Commercial division, Vector Security Networks, is built for multi-site chains and pairs physical security with managed network services under one point of contact. That bundle matters for chains where alarm communicators, cameras and point-of-sale share a circuit. Vector is best for 50 to 1,000 small-format sites that need intrusion, video and connectivity priced per store. It is the wrong call for campus-style portfolios with heavy access control and fire alarm scope.

8. The strong regional integrator

Not a single company but a category, and for most readers with 5 to 25 sites it is the right answer. The profile: 5 to 30 branches in one region, owner or regional VP as the escalation point, NICET-certified fire technicians on staff, UL-listed monitoring either in-house or through a named third-party central station, and a willingness to put all of your sites on one agreement with one renewal date. Regional firms self-perform inside their footprint and lose that advantage the moment a site falls outside it. Our vetted network is made up of exactly these contractors across the building types we serve.

What a multi-site security system actually costs per site

Per-site pricing depends on building type far more than on the integrator's name. The planning ranges below come from our cost guides; we link to them rather than re-argue the numbers here.

• Small-format retail, restaurant or clinic (under 5,000 sq ft): $3,000 to $10,000 installed per site for alarm plus cameras, per our commercial security system cost guide. Our retail loss prevention guide models a 3-to-10-store chain at $8,000 to $25,000 per store with 8 to 16 cameras and one cloud video and access platform across sites.
• Mid-size office, branch or warehouse (5,000 to 25,000 sq ft): $10,000 to $50,000 installed per site.
• Large or multi-building site (25,000+ sq ft): $50,000 to $150,000 and up, with integrated fire alarm pushing past the top of that range.
• Access control: $1,500 to $3,500 per standard door installed, with cloud licensing at $3.50 to $15 per door per month, per our access control installation cost guide. Per-door cost falls as doors are added, which is the main volume lever in a portfolio deal.

A per-site monitoring rate for a multi-site account normally runs $150 to $500 or more a month for consolidated accounts with video verification, and $30 to $150 a month for each additional basic-intrusion site, with per-site rates negotiated downward as sites are added, per our business alarm monitoring cost guide. Bundled video, access and alarm packages are commonly published at $150 to $250 a month per site. If a bidder's monitoring line is dramatically below that band, the difference is often subsidized hardware that the provider continues to own.

The five contract terms that decide the five-year number

Installed price is the number everyone compares and rarely the number that decides the deal. Over a 36-to-60-month term, recurring monitoring and service charges become a large share of the total, and five clauses control them.

1. Term length. Commercial monitoring agreements commonly run 36 to 60 months. Longer terms should buy a lower rate; if they do not, you are financing the integrator's customer acquisition.
2. Auto-renewal. Many agreements renew for another full term unless cancelled inside a 30-to-60-day notice window, per our alarm monitoring service guide. Across 40 sites with 40 different end dates, that is 40 chances to miss the window. Negotiate month-to-month after the initial term, or at minimum a single portfolio-wide notice date.
3. Master agreement versus per-site contracts. Make a master services agreement with site schedules a condition of the RFP, and refuse per-site contracts. Under a master services agreement, each location is added by a site schedule that inherits the master's rate card, term and termination rights, so a new site opened in year three does not start its own 60-month clock. Without one, each location signs its own contract with its own renewal date, which is how portfolios end up unable to switch vendors as a whole.
4. Rate escalators. Compare the full-term cost including any annual escalator, not the first-year rate. As an illustration, a 4 percent annual escalator on a $300 per-site rate adds roughly $51 a month per site by year five, about $2,450 per site over the term. Cap escalators in the master agreement or tie them to a published index.
5. Equipment ownership at termination. Whether you own the equipment at each site when the contract ends depends on how the deal was structured: equipment purchased outright on the installation invoice is yours, while subsidized or leased hardware behind a low monthly rate stays the integrator's and can be removed or locked at termination. Specify in the master agreement that all hardware transfers to you, that panels are non-proprietary, and that installer codes and admin credentials are released at term end.

The multi-site RFP checklist

A multi-site security RFP should force every bidder to price the same scope, which means writing the scope yourself rather than asking each firm to propose one. Include:

• ZIP-code coverage proof. A table of every site address with the bidder's servicing branch, distance in miles, and whether the branch is company-owned or a partner. Make the bidder fill in the table rather than pointing you to a locator map.
• Guaranteed response times by site tier. Tier your sites (24-hour for flagship and regulated sites, 48 or 72 hours for the rest) and require a committed on-site response time per tier with service credits.
• Self-perform disclosure. A written statement, per site, of whether installation and ongoing service are self-performed, with the name and license number of any subcontractor. Ask directly: does the integrator self-perform at every location or subcontract where it has no branch? None of the national integrators we reviewed publishes a self-perform ratio; Securitas Technology is the only one that names a partner program, so make the others answer in writing.
• Standardized installation specification. One per-site device schedule by building archetype (camera counts and resolutions, door counts and reader types, panel model, communicator path) so a store in Phoenix and a store in Atlanta are priced against identical line items.
• Platform standardization. Name the access control and video management platforms you will run across the estate. Keeping platforms consistent across sites installed by different companies comes down to owning the platform licence yourself and specifying it in every contract: a cloud or enterprise access control system with one credential database, one VMS with per-site recorders or cloud connectors, and a requirement that any installer, national or local, commissions into your tenant rather than theirs. Our access control guide covers the components and integration points to specify.
• Spare-parts strategy. Where critical spares (panels, readers, recorders) are stocked, and the replacement time commitment for each.
• One pricing sheet every bidder must fill in. Columns for per-site installed cost by archetype, per-site monthly monitoring, per-door and per-camera adders, annual escalator, term, renewal terms, and equipment ownership at termination. No narrative proposals accepted in place of the sheet.

How to get comparable quotes across every site

Twelve locations quoted by twelve contractors come back incomparable because each contractor wrote their own scope: twelve scopes, twelve monitoring rates, twelve renewal dates. The fix is procedural. Build one portfolio profile, every site listed by address, square footage, archetype and systems required, and have every bidder price against it on the same sheet.

That is what our quote process does for multi-site buyers. You submit one portfolio profile. We screen contractors for state licensing, insurance confirmed by certificate, building-type experience and complaint history, then send the normalized scope to a small number of firms that actually service your markets, whether a regional integrator covering two states or a national program for a 40-state estate. Quotes come back showing installed cost, recurring fees, contract term and equipment ownership side by side. There is no fee and no obligation; contractors pay for the introduction, which is why we have no stake in which firms end up on your shortlist. See how the process works, or start a portfolio quote request with your site list.

Frequently asked questions

Which security integrators can actually cover all of my locations, and how many states does each one serve?

Convergint lists 117 US Technology Centers across 41 states on its locator (October 2026); Pye-Barker reports 250-plus locations in 47 states (March 2026); Everon reported 117 locations and Pavion 71 to the 2025 SDM 100; Vector Security reported 58; Securitas Technology serves 44 markets directly and 18 more through certified partners. Branch counts are a proxy, so ask each bidder to name the servicing branch for every site address.

I have 12 locations across three states. Is a national or regional integrator better, and when does that flip?

If all 12 sites sit inside one regional integrator's branch footprint, the regional firm is usually better: self-performed labor, one accountable owner and lower overhead. The decision flips when a meaningful share of sites, roughly a quarter or more, falls outside any single regional firm's map, or when the site count passes roughly 50 to 100 across many states, at which point a national account program's standardization and single point of contact start to pay for themselves.

What does a national account program actually give me, and what does it guarantee in writing?

A national account program typically offers one dedicated point of contact, a standardized specification across sites, consolidated reporting and quarterly business reviews; Everon and Securitas Technology both publish these, and Everon routes service through a National Account Operations Center. The web page is not the contract, so get each of those written into the master agreement, along with the things no program page promises: self-performed labor at every site, capped escalators and equipment ownership at term end.

Convergint is ranked number 1 by SDM. Does that make it the best integrator for my portfolio?

No. SDM's Top Systems Integrators report ranks on North American integration project revenue, so the No. 1 position means Convergint books the most project revenue, not that it has the best coverage in your ZIP codes or the lowest per-site price. Convergint is a strong fit for complex, platform-heavy portfolios; for a chain of small-format sites that mainly needs monitored intrusion and video, other firms on this list are often the better match.

How do I get per-site pricing I can actually compare?

Write one portfolio profile and one pricing sheet, and require every bidder to price against them. The profile lists every site by address, square footage and archetype with a standard device schedule; the sheet fixes the columns for installed cost per site, monthly monitoring per site, escalator, term, renewal and ownership.

How much does a multi-site security system cost per site to install, and what is a normal monitoring rate?

Installed cost runs roughly $3,000 to $10,000 per small-format site, $10,000 to $50,000 per mid-size building and $50,000 to $150,000 or more per large site, per our commercial security system cost guide. Monitoring for multi-site accounts runs $150 to $500 or more a month for consolidated, video-verified accounts, with additional basic sites at $30 to $150 a month each, per our business alarm monitoring cost guide.

Can I get one master agreement across all sites?

Ask for one, national or regional, and make it a condition of award: a master services agreement under which each site is added by schedule and inherits the master's rates, term and termination rights. Insist too on a single portfolio-wide renewal date; otherwise each location runs its own renewal clock and the portfolio can never switch vendors as a whole.

Do I own the equipment at each site when the contract ends?

Only if the agreement says so. Equipment bought outright on the installation invoice is yours; hardware subsidized behind a low monthly rate typically remains the integrator's property and may be removed or disabled at termination. Specify ownership transfer, non-proprietary panels and release of installer codes in the master agreement before signing.

Does the integrator self-perform at every location, or subcontract where it has no branch?

None of the national integrators we reviewed publishes a self-perform ratio; Securitas Technology is the only one that discloses a partner model, naming a Certified Partner Program that extends coverage beyond its 44 directly served markets. Require a per-site written disclosure of who performs installation and service, with subcontractor names and license numbers, as a condition of award.

How do I keep access control and camera platforms consistent across sites installed by different companies?

Own the platform yourself. License one enterprise or cloud access control system and one video management system in your name, specify them in every contract, and require every installer to commission devices into your tenant and credential database rather than their own. Then a regional integrator in one state and a national firm in another deliver into the same system, and replacing either later does not strand the sites they built.

The best commercial security systems companies for a multi-site business are the ones whose branch map matches your site list, who will price an identical scope at every location, and who will put ownership, escalators and renewal in a single master agreement you can actually read. Rank them that way, not by revenue, and the right answer for your portfolio becomes obvious.