Schneider Electric Brands
A field guide to the legacy lineage in your building.
The world’s biggest invisible brand.
Schneider Electric power distribution products and energy management components are installed in 40 to 60 percent of buildings in every major city in the world. One company executive once called it “the world’s biggest invisible brand,” and that’s about right. Most facility managers, owners, and even seasoned engineers don’t know they’re touching Schneider equipment every day.
Schneider Electric is headquartered in France, has 168,000 employees in over 100 countries, and was founded in 1836 by the Schneider brothers — Adolphe and Eugène — as a steel and industrial concern. The pivot to electricity didn’t happen until 1975, when Schneider acquired Merlin Gerin and started becoming the company we know today.
Once that pivot happened, the acquisition strategy never really stopped. Schneider Electric is now the parent company of some of the most familiar electrical, automation, and building technology brands on the planet. Square D. APC. TAC. Andover Controls. Invensys. Telemecanique. The names are recognizable. The parent company isn’t.
“The largest company you’ve never heard of.”
This is the field guide we wish existed for facility managers, engineers, and BD teams trying to make sense of what’s actually under the hood of their building. The brands are everywhere. The lineage matters. And when it comes time to upgrade controls or replace a UPS or run a new circuit, knowing which Schneider brand you’re dealing with — and what’s now made by the parent — changes the math.
How Schneider built its empire.
The simplest way to understand Schneider Electric is to follow the acquisitions. Each one absorbed a category leader, kept the brand name people recognized, and rolled the technology into the broader Schneider platform.
1975 — Merlin Gerin
The acquisition that turned Schneider from a steel company into an electrical one. Merlin Gerin made low- and medium-voltage circuit breakers and switchgear — the unsexy core of every commercial electrical room. Schneider absorbed the technology and kept the Merlin Gerin name in the European market for decades. (You’ll still find Merlin Gerin breakers in older buildings.)
1988 — Telemecanique
French industrial controls — contactors, sensors, motor starters. The brand most American electricians have seen but couldn’t quite place. Telemecanique became part of Schneider’s industrial automation portfolio.
1991 — Square D
This is the one. Square D had been THE American electrical brand for decades — panelboards, circuit breakers, load centers, everything inside the gray box on the wall. When Schneider acquired Square D in 1991, they kept the name because the brand equity was enormous. Most American facility managers still call breakers “Square D” without realizing they’re now French. The brand outranks the parent in U.S. recognition by a wide margin.
2003 — TAC
This is where Schneider entered building automation in a serious way. TAC (Tour Andover Controls AB, a Swedish-American merger) was a top-tier BAS controller manufacturer. The TAC I/A Series (Intelligent Automation) controllers ran labs, hospitals, and office buildings across North America. Schneider acquired TAC and started weaving it into what would become the EcoStruxure platform. For Athena specifically, this acquisition was a partner-side event — Athena had been a TAC partner since 1998, and Schneider’s acquisition brought us into the Schneider ecosystem on day one. The relationship goes back further than most owners realize.
2005 — Invensys / Foxboro
Process control, industrial automation, and Wonderware HMI software. The Invensys acquisition pulled in Foxboro (industrial process instrumentation) and several other industrial technology lines. Less directly relevant to commercial buildings, but it’s why you’ll find Foxboro branding next to Schneider on industrial sites.
2007 — Andover Controls
The complement to TAC. Andover Controls’ Continuum platform was the legacy BAS standard across thousands of commercial buildings. Schneider acquired Andover in 2007 and now sells the system as part of EcoStruxure Building Operation. The Andover Continuum name still appears on every controller installed during that era — and there are a LOT of those controllers still running.
2010s — APC,Viconics, Power Measurement
Schneider rounded out the portfolio through the 2010s — APC (uninterruptible power supplies and data center power, with the Galaxy and Smart-UPS sub-brands and the NetBotz environmental monitoring line), Pelco (video security — Schneider divested this in 2019, but cameras with Schneider branding are still common in buildings from that era), Viconics (zone-level wireless and wired controllers), Power Measurement (energy metering, now under PowerLogic branding). Each kept its name. Most are still under Schneider; Pelco moved on.
2018–2023 — AVEVA, Wonderware, OSIsoft PI
This one’s a sleeper. Most people don’t know Schneider owns AVEVA — but they do, and the AVEVA acquisition is arguably one of the largest software deals in industrial automation history.
Schneider initially took majority ownership of AVEVA in 2018 by combining its own software assets (including the former Invensys/Wonderware portfolio) into AVEVA in exchange for a controlling stake. Then in 2023, Schneider went the full distance and acquired AVEVA outright in a $10.6 billion deal, taking the company private.
What AVEVA brings: Wonderware HMI/SCADA (the dominant operator interface platform across U.S. industrial sites), Citect SCADA, and OSIsoft PI System — which AVEVA itself acquired for $5 billion in 2021. PI System is the industrial data infrastructure that powers most large process plants, utilities, and increasingly data centers. Through AVEVA, Schneider effectively owns the largest industrial software stack in the world.
For commercial buildings, the AVEVA story is mostly background — but PI System and Wonderware show up in large institutional campuses, hospitals, and any facility where industrial-grade data infrastructure intersects with BAS.
2024–present — EcoStruxure platform consolidation
Recent Schneider strategy has been to consolidate the brand portfolio under the EcoStruxure umbrella as a platform name. EcoStruxure now branches into sub-platforms: EcoStruxure Building Operation (BAS), EcoStruxure Power (electrical distribution monitoring), EcoStruxure IT (formerly StruxureWare for Data Centers, now the platform for data center management), EcoStruxure Plant (industrial), EcoStruxure Machine (machine control), and EcoStruxure Grid (utility-scale). The product brands (Square D, APC, TAC, Andover, etc.) remain as recognized names, but the platform underneath is unified.
Why this matters for your building.
Schneider’s acquisition strategy created something unusual: instead of obsoleting the legacy systems they bought, Schneider engineered upgrade paths from each one into the modern EcoStruxure platform. This is the opposite of how most controls manufacturers operate, where the old product line gets discontinued and the customer is forced into a rip-and-replace migration.
If you have Andover Continuum in your building, Schneider still supports it. They sell migration kits that let you keep the field hardware — the I/O modules, the field wiring, the sensors — and replace the head-end and supervisory controllers with EcoStruxure Building Operation (EBO). The investment in field wiring (often the biggest cost in a BAS) gets preserved.
Same story for TAC I/A. Same for TAC Vista. Same for Continuum bCX controllers, Continuum NetController controllers, all of it. Schneider’s path-forward strategy is the reason Athena recommends the brand for clients with mixed-vintage portfolios. It’s the only major BAS line where “legacy” doesn’t mean “junk it.”
Schneider’s path-forward strategy is the reason Athena recommends the brand for clients with mixed-vintage portfolios. “Legacy” doesn’t have to mean “junk it.”
The Schneider brands in your building.
The full Schneider portfolio at a glance — organized by what each brand actually does in a commercial or institutional building. The table below covers everything in one place: brand, category, when Schneider acquired it, and where it stands today. Use it as a reference; jump to the rows that match what’s in your panels.
| Brand | Category | Acquired | Current Status |
| EcoStruxure Building Operation | BAS (current) | — | Schneider’s current BAS platform; supervisory layer for all Schneider building systems |
| SmartX IP Controllers | BAS (current) | — | Current Schneider IP-native controllers under EBO; what gets specified on new installs |
| Andover Continuum | BAS (legacy) | 2007 | Still supported via EBO migration paths |
| TAC I/A Series | BAS (legacy) | 2003 | Migrates to EBO; common in lab and healthcare |
| TAC Vista | BAS supervisor (legacy) | 2003 | Replaced by EBO |
| TAC Xenta | BAS controllers (legacy) | 2003 | Migrates to EBO MP/AS series |
| Viconics | Zone controllers | 2010 | Active; common as VAV and FCU controllers |
| Barber Colman | Pneumatic HVAC controls | 1996 (via Eurotherm) | Legacy; pneumatic-to-DDC migrations common |
| Altivar | Variable frequency drives | 1988 (Telemecanique heritage) | Active; HVAC pump and fan applications |
| Square D | Electrical distribution | 1991 | Active; primary U.S. electrical brand |
| Merlin Gerin | Switchgear | 1975 | Largely absorbed into Schneider Electric branding |
| Telemecanique | Industrial controls | 1988 | Active under Schneider branding |
| APC | UPS / power backup | 2007 | Active; primary UPS brand |
| Galaxy (APC) | Large-scale UPS | 2007 | Active; data center and large facility UPS |
| Smart-UPS (APC) | Rack-mounted UPS | 2007 | Active; server room and IT closet UPS |
| NetBotz (APC) | Environmental monitoring | 2007 | Active; temp/humidity/airflow for IT spaces |
| MGE UPS Systems | Industrial UPS | 2004 | Absorbed into APC |
| PowerLogic | Energy metering | In-house | Active |
| Power Measurement | Utility metering | 2005 | Now under PowerLogic |
| Xantrex | Power inverters | 2008 | Active; some under Conext branding |
| Modicon | PLCs / industrial automation | 1996 | Active; M340 and M580 current series |
| Foxboro | Process instrumentation | 2014 (via Invensys) | Active in industrial markets |
| AVEVA | Industrial software (parent) | 2018→2023 | Schneider fully acquired 2023; owns Wonderware, Citect, OSIsoft PI |
| Wonderware (via AVEVA) | HMI/SCADA software | 2014→2023 | Active under AVEVA |
| Citect SCADA (via AVEVA) | Supervisory control software | 2014→2023 | Active under AVEVA |
| OSIsoft PI System (via AVEVA) | Industrial data infrastructure | 2021 | Active; AVEVA acquisition for $5B |
| Invensys | Industrial automation | 2014 | Largely absorbed into AVEVA |
| Pelco | Video security | 2007 (divested 2019) | Sold to Transom Capital 2019; now under Motorola Solutions |
| Clipsal | Wiring devices, lighting control | 2003 | Active, primarily APAC markets |
| C-Bus (Clipsal) | Lighting control protocol | 2003 | Active; commercial lighting integrations |
| ASCO | Transfer switches | 2017 | Active |
| Areva T&D | Power transmission and distribution | 2010 | High-voltage business divested to GE 2015; medium-voltage and distribution retained |
What a Schneider migration actually looks like.
Most facility managers’ biggest BAS fear is the rip-and-replace migration — pulling out every controller, rewiring every sensor, retraining every operator, paying for it all at once. Schneider’s migration approach is built specifically to avoid this.
A typical Andover Continuum to EBO migration runs in three phases:
Phase 1 — Supervisory replacement
The Andover head-end gets swapped for an EcoStruxure Building Operation server. The bCX or NetController II hardware in the field stays in place. The new EBO server learns the old database (point lists, schedules, alarms), and the operators see a modern interface for the first time. No field disruption.
Phase 2 — Controller modernization (gradual)
As individual bCX or NetController hardware reaches end-of-life, those specific units get replaced with current Schneider MP-series or AS-series controllers. EBO handles both old and new in the same system, so the migration runs at the pace of natural attrition. There’s no forced cutover date.
Phase 3 — Field device modernization (optional)
Eventually, end-of-life sensors and actuators get replaced with current Schneider field devices — many of which are pin-compatible with the legacy units. This is the longest phase and often runs for years.
The whole point: the building’s BAS investment compounds over time instead of getting reset every 10 years. Owners with Andover, TAC, or Continuum systems aren’t holding obsolete gear — they’re holding the foundation of the next-generation platform.
Why work with a certified EcoXpert partner.
Schneider Electric does not sell EcoStruxure directly to most end users. The platform is delivered through a vetted network of integrators called EcoXpert partners — firms that are trained, certified, and audited by Schneider to design, install, and service the system.
Athena Engineering’s path to EcoXpert certification was the long way around. We’ve been working on building automation since 1991 — first as a Honeywell partner from 1991 through 1998, then as a TAC partner from 1998 until Schneider’s acquisition of TAC in 2003. When Schneider folded TAC into what became EcoStruxure, we came along with the platform. Athena formalized EcoXpert certification in 2018, but the working relationship with these controllers has been continuous for over thirty years.
The certification means Athena’s controls engineers and technicians have completed Schneider’s formal training programs across EcoStruxure Building Operation, Andover Continuum, TAC I/A, and the broader Schneider product family. It also means Schneider backs us with engineering support, factory escalation paths, and access to the migration tools that aren’t available to non-certified integrators.
For owners, the practical difference is significant: a certified EcoXpert can quote, design, install, and service a Schneider BAS without third-party handoffs. Single point of accountability. No “the integrator says it’s the manufacturer, the manufacturer says it’s the integrator” finger-pointing.
The pragmatic takeaway.
If you’re a facility manager, the right question to ask isn’t “do we have Schneider in our building?” — the answer is almost certainly yes. The right questions are:
- Which Schneider products do we have, and what generation are they?
- What’s the EBO migration path from where we are now?
- Are we working with a certified EcoXpert partner — and if not, why not?
Schneider’s brand sprawl is a problem. The fix is having someone in your corner who reads the labels for you, knows which generation maps to which migration path, and can quote the work without subcontracting half of it out to third parties. That’s the whole reason the EcoXpert program exists.
Athena Engineering has been doing building automation work in Southern California for over thirty years — first as a Honeywell partner from 1991 through 1998, then a TAC partner starting in 1998, and a Schneider partner since the TAC acquisition in 2003. EcoXpert certification followed in 2018. The brand graphics change. The product names change. The buildings don’t. Three decades of installing, servicing, and migrating these systems means the lineage isn’t theoretical to us — it’s the inventory in our service van.
From Honeywell to TAC to Schneider EcoStruxure — three decades, three brands, one practice.
Want to talk about your Schneider system?
Whether you’ve got Andover Continuum, TAC Vista, EBO, or a mix of all three — we can walk the system, audit the migration path, and give you a clear picture of where it is and where it’s going. Email info@athenaengineering.com or call 909-599-0947.
