Ireland is home to a large and growing number of data centres, and every one of them depends on tight control of cooling, power and environmental conditions. A building energy management system, or BEMS, is what keeps that plant visible and efficient, so the partner you choose to design, install or maintain one matters.
This shortlist gathers BEMS and building controls businesses from across Ireland, from Dublin and Cork to Kildare, Louth, Carlow and Galway. It is an editorial starting point, not a league table. Talk to two or three before you decide.
#1. Standard Control Systems
Standard Control Systems leads our shortlist. The company is based at Standard House in the Riverview Business Park on the New Nangor Road, Dublin 12, with the M50 and N7 both within a few minutes’ drive. That puts it within easy reach of the large data centre parks across west Dublin and the wider greater Dublin area.
As the name suggests, control systems are the core of the business. For data centre operators, that points to the monitoring and control of cooling, ventilation and associated plant, the systems that keep halls within their environmental limits. A controls partner close to your site also makes planned maintenance and call outs simpler to manage. The company holds a 4.3 out of 5 Google rating from 6 reviews.
If your facilities are in Dublin or the surrounding counties, Standard Control Systems is a sensible first call. Ask about their experience in mission-critical environments, and how they approach integration with plant already in place.
- Rating: 4.3/5 (6 Google reviews)
- Address: Standard House, Riverview Business Park, New Nangor Road, Gallanstown, Dublin 12, D12 VK38
- Phone: +35314291800
- Website: standardcontrol.ie
#2. Subnet Automation – BMS & HVAC Controls Specialist
Subnet Automation trades as a BMS & HVAC Controls Specialist, which tells you plainly where its focus lies. The company works from the Sky Business Centres in the Port Tunnel Business & Technology Park in Clonshagh, on the north side of Dublin close to the Port Tunnel itself. The M50 interchange is only a few minutes away.
That position gives quick access to the M50 and M1, handy for sites across north Dublin, the airport corridor and further north. Building management systems and HVAC controls are central to how a data centre manages temperature and humidity, so the stated specialism lines up well with what operators need from a BEMS partner.
The company holds a 5 out of 5 Google rating from 2 reviews, a small sample but a positive one. If your project is in north Dublin or along the M1 corridor, Subnet Automation is worth a call. As with any controls firm, ask for examples of recent data centre or similar critical environment work.
- Rating: 5/5 (2 Google reviews)
- Address: Office no.2 SKY BUSINESS CENTRES Unit 21, Block 1 Port Tunnel Business & Technology Park, Clonshagh, Dublin, D17 E529
- Phone: +35319629114
- Website: subnet.ie
#3. Intelligent Building Controls Limited
Intelligent Building Controls Limited works out of the Oak Road Business Park in Knockmitten, Dublin 12, just off the Long Mile Road and a short drive from the M50. The name points directly at building controls, which is the ground this shortlist covers.
The company is listed as a distribution service, so it sits on the supply side of the market. For a data centre project, that can matter when you are sourcing controls hardware or components as part of a wider build or refurbishment. It is worth asking how supply and any engineering support fit together in practice.
The firm holds a 4.5 out of 5 Google rating from 8 reviews. If your site is in the south west of the city, along the Naas Road corridor or out towards Citywest, Intelligent Building Controls is a sensible inclusion when you gather quotes. Ask about lead times on hardware if your programme is tight.
- Rating: 4.5/5 (8 Google reviews)
- Address: Unit 10, Block A, Oak Road Business Park, Oak Cl, Knockmitten, Dublin 12, D12 C920
- Phone: +35314575421
- Website: ibc.ie
#4. Control Tech Limited
Control Tech Limited operates from Rock House in Baldonnell Upper, Dublin 22, close to the Naas Road and the Citywest campus. Given the concentration of data centres along the N7 corridor, that is useful territory for a controls firm.
The company is listed as an automation company. In practice that category covers the control and monitoring systems used to run building plant, which is exactly the ground a BEMS project sits on. Automation work in this space usually spans design, panel build, installation and commissioning, so clarify which parts they handle in house.
Control Tech holds a 4 out of 5 Google rating from 8 reviews. For sites in west Dublin or along the N7 towards Naas and beyond, they are a practical option to include when you gather quotes. A first call should tell you quickly whether their experience matches your scope.
- Rating: 4/5 (8 Google reviews)
- Address: Rock House, Baldonnell Upper, Dublin 22, D22 A7X2
- Phone: +35314594655
- Website: controls.ie
#5. Sygma Automation
Sygma Automation’s base is on the New Mallow Road on the north side of Cork city, with straightforward access to the N20 and the northern ring road. From there, most of Cork city and county is within easy reach. The ring road also links quickly to the N25 and the tunnel, so the eastern and southern suburbs are accessible too.
The company is listed as an automation company. For a data centre operator in Munster, a Cork based controls firm can be a practical choice for ongoing support, since someone is never far away when a site visit is needed. Ask about the balance between new build work and retrofit in their portfolio.
The listing we researched carries no public Google rating, so ask for references and examples of completed projects when you call. That is sound practice with any controls partner, whether rated or not. A short capabilities statement from them will help you compare like for like.
- Address: New Mallow Rd, Cork
- Phone: +353214308824
- Website: sygma.ie
#6. EPA Ltd BMS Controls
EPA Ltd BMS Controls has its office on Main Street in Leixlip, Co. Kildare, right on the Dublin county boundary. Leixlip sits on the M4 corridor, one of the main data centre routes west out of Dublin, so the location suits sites across Kildare, Meath and west Dublin alike. The M4 and the M50 interchange are both within easy reach.
The name makes the specialism plain: BMS controls. Building management systems underpin environmental control in data halls, so this is directly relevant ground for operators. The listing is registered as a corporate office, so confirm where their engineering team is based and how they cover call outs.
The listing carries no public rating, so treat the first conversation as a fact-finding exercise. Ask about experience on live or mission-critical sites, what support looks like after handover, and who you actually deal with day to day.
- Address: Main St, Leixlip, Co. Kildare, W23 P6R0
- Website: epaltd.com
#7. KNX Ireland | Building Automation Ireland | KNX Tech & Support
KNX Ireland trades from Clanbrassil Street in Dundalk, Co. Louth, roughly halfway between Dublin and Belfast on the M1. The full listing name, KNX Ireland | Building Automation Ireland | KNX Tech & Support, points to a focus on the KNX building automation standard. Dundalk’s position also makes cross border work straightforward.
The company is listed as an electrical equipment supplier, and the name suggests technical support sits alongside supply. KNX is more common in commercial buildings than in data halls, but it often covers the office and welfare areas of a facility, so it can form part of a wider project. Ask how they see KNX fitting alongside the main BEMS.
KNX Ireland holds a 5 out of 5 Google rating from a single review. If your project mixes data centre and commercial space along the M1 corridor, they are one to know. Their supply side may also be useful if you are sourcing KNX devices directly.
- Rating: 5/5 (1 Google reviews)
- Address: 68 Clanbrassil St, Townparks, Dundalk, Co. Louth, A91 RX2A
- Phone: +353429424476
- Website: knxireland.com
#8. Intelect
Intelect keeps its offices at Wandesford House on Wandesford Quay, right by Clarke’s Bridge in the centre of Cork. A city centre base makes meetings easy and puts the whole of the city within a short drive. The quays location is walkable from most of the centre, which helps if you prefer face to face meetings.
The company is listed as an automation company. For Munster operators, Intelect is a local option for controls and integration work, without the need to bring a team down from Dublin. Cork has a steady pipeline of data centre and industrial projects, so local controls capacity is worth knowing about. Ask which platforms they work with most and whether they take on ongoing maintenance contracts.
No public rating appears on the listing we researched. As with any unrated firm, ask for case studies or reference sites when you make contact, and check how they structure support after a project goes live.
- Address: Wandesford House, Wandesford Quay, Clarke’s Bridge, Cork, T12 TD2P
- Phone: +353212379691
- Website: intelect.ie
#9. BPS Controls
BPS Controls operates from Enterprise House on the O’Brien Road in Carlow town. Carlow sits just off the M9, within reach of Dublin, Kilkenny and Waterford, so the firm is well placed for work across the south east and into the midlands. The town’s business parks sit close to the motorway junction, which keeps travel logistics simple.
The company is listed as an automation company, the broad category that covers BEMS and controls work. For facilities outside the main Dublin cluster, a regional firm can mean shorter travel times for site visits and planned maintenance. Controls firms in this category often cover everything from panel build to commissioning, so clarify what is done in house.
The listing has no public rating, so come to the first call with questions. Ask about recent projects, references and how ongoing maintenance is structured. A written scope from each firm you approach will make comparisons much easier.
- Address: Enterprise House, O’Brien Rd, Rathnapish, Carlow, R93 Y0Y3
- Phone: +353599108028
- Website: bpscontrols.ie
#10. Johnson Controls Headquarters
Johnson Controls is one of the longest established names in building management systems worldwide, and its Cork office at 1 Albert Quay is listed as a headquarters. The building sits in the docklands, a short walk from the city centre. The area is easy to reach from the South Ring Road, which helps for sites across the wider city.
A global manufacturer offers a different proposition from a local integrator, with its own product families and a large organisation behind them. For bigger builds or multi-site operators, that scale can be relevant, particularly where standardisation across sites matters. Ask how local projects are supported from Cork and where engineering resources sit.
The Cork listing holds a 4.2 out of 5 Google rating from 23 reviews, the largest review count on this shortlist. If you would rather deal directly with a manufacturer than an independent integrator, this is the natural place to start in Munster.
- Rating: 4.2/5 (23 Google reviews)
- Address: 1 Albert Quay, Ballintemple, Cork, T12 X8N6
- Phone: +353214260000
- Website: johnsoncontrols.com
#11. HAS Integration
HAS Integration operates from Glenrock Business Park on Bóthar Na Mine in Galway, on the Ballybrit side of the city close to the N6. It is the only Connacht based firm on this shortlist, which matters if your sites are in the west. The location gives quick access to the M6 towards Dublin as well.
The company is listed as an audio visual consultant, and the name points to systems integration. That is a different emphasis from pure BEMS work, so use the first call to confirm how much building controls work they take on and where their strengths lie. Integration skills transfer well across systems, but confirm data centre experience specifically.
HAS Integration holds a 5 out of 5 Google rating from 2 reviews. For projects in Galway or the wider west, they are worth a conversation. Ask for examples of comparable integration projects when you get in touch.
- Rating: 5/5 (2 Google reviews)
- Address: Glenrock Business Park, 37 Bóthar Na Mine, Galway, H91 HW18
- Phone: +35391449920
- Website: hasintegration.ie
What is a BEMS and why does it matter for data centres?
A building energy management system is a layer of hardware and software that monitors and controls a building’s mechanical and electrical plant. In a data centre, that means cooling units, chillers, pumps, fans and humidification, and often power distribution as well. The system collects readings from sensors and meters, then adjusts plant to keep conditions stable and energy use as low as practical.
Cooling is usually the largest energy load in a data centre after the IT equipment itself, so small improvements add up quickly. A well configured BEMS shows operators where energy goes and lets them tune cooling to real demand rather than worst case assumptions. It also produces the data needed for PUE tracking, energy audits and internal reporting, which many operators now treat as routine.
What should you look for in a BEMS partner?
Start with platform and protocol experience. Data centres mix equipment from many vendors, so your partner should be comfortable with open protocols such as BACnet and Modbus, and with integrating to an existing BMS, EPMS or DCIM platform. Ask which systems they have integrated before, and whether their solution ties you to a single manufacturer.
Then look at support. A data centre runs around the clock, so ask what monitoring, alarm response and maintenance look like after handover, and who answers the phone out of hours. Finally, ask for evidence of work in critical environments. An office fit out and a live data hall have very different tolerances, and you want a partner who understands the difference.
What should you ask before signing a BEMS contract?
Get the scope in writing. A solid proposal sets out the points being monitored, the head end software, the graphics and reporting you will receive, and what is excluded. Vague scopes cause disputes later, and they make quotes impossible to compare.
Ask who owns the software licences and the data, and whether another firm could take over the system in future. Open systems are cheaper to modify over time. Also agree a training plan for your own team and a schedule of rates for call outs after go live, so the ongoing costs are as clear as the build price.
Frequently Asked Questions
How much does a BEMS cost for a data centre in Ireland?
Costs vary widely with the size of the facility and the number of points being monitored. A small server room retrofit is a very different job from a full hyperscale build. Most suppliers price each project individually after a site survey, so get two or three itemised quotes and compare the scope line by line rather than the headline figures.
What is the difference between a BMS and a BEMS?
A building management system (BMS) monitors and controls building plant such as heating, ventilation and air conditioning. A building energy management system (BEMS) does a similar job with a stronger focus on metering, energy analysis and optimisation. In practice the terms overlap and many modern platforms do both, so ask each supplier exactly what their system covers.
Can a BEMS be retrofitted to a live data centre?
Yes, in most cases, but the work needs careful planning. Any interruption to cooling can put IT load at risk, so retrofits are usually phased, with new controls run in parallel before changeover. Ask any prospective partner how they manage risk during cutover and whether they have completed work in live environments before.
How does a BEMS help with data centre energy targets?
A BEMS gives you metered data on where energy is used, which is the starting point for any reduction plan. It can trim waste by matching cooling output to real demand, and it produces the reports needed for PUE tracking and energy audits. The savings depend on how well the system is configured and how actively it is managed.
Which protocols should a data centre BEMS support?
BACnet and Modbus are the two you will meet most often, and most modern plant supports one or both. KNX appears more in the commercial areas of a facility, while SNMP is common for power and UPS equipment. The key question is whether the system is open, so you are not tied to one vendor for future changes.