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How Commercial Real Estate Can Reduce Carbon Footprint with Sustainable Mobile Access Solutions

The commercial real estate (CRE) sector uses 40% of global energy and contributes one-third of all carbon emissions. If the world is serious about hitting climate goals, CRE doesn’t just need to participate, it needs to lead.

As governments sharpen their focus on carbon targets and net-zero policies, the pressure is on: buildings must get smarter, greener, and more efficient.

CRE is ground zero for climate impact

From the Paris Agreement to the UN’s 2030 Sustainable Development Goals, global climate frameworks make one thing clear, buildings can no longer be energy black holes.

Sustainability is now a key performance indicator. It’s about ESG. It’s about brand value. And increasingly, it’s about meeting tenant expectations and staying competitive.

Smart buildings aren’t just buzzwords, they’re the blueprint.

But green goals need practical tools

Even with COP26 ambitions and national pledges to halve emissions by 2030, action often stalls due to competing priorities. That’s where proptech becomes a powerful enabler.

When sustainability also unlocks cost savings, brand equity, and tenant retention, it becomes a no-brainer.

Innovative proptech solutions are allowing CRE property managers and owners to monitor and reduce carbon emissions. By digitizing and automating the management of lighting, HVAC systems, and changing to a mobile solution for access credentialing to reduce plastic and e-waste, all proptech software solutions can help to improve building sustainability without really lifting a finger. Investing in proptech has now become an essential component for buildings looking to stall and reduce carbon emissions in order to meet targets. 

Smart buildings start with smart access

At Sentry Interactive, we’re helping commercial real estate operators move to a sustainable mobile credentialing solution that works with existing physical access control systems (PACS). This means they can modernize and future-proof their access control infrastructure without replacing a thing, no reader hardware is required, meaning no e-waste and reduced plastic waste from transitioning to mobile credentials. 

Our readerless mobile access software:

  • Requires no new reader hardware
  • Can be deployed in hours, remotely
  • Eliminates the need for unsecure plastic keycards and fobs
  • Works via NFC technology, QR code scan or remote widget access
  • Integrates seamlessly into third party cloud platforms and mobile apps via our SDK integration

We’re not just reducing friction, we’re helping reduce emissions.

Green mobile credentialing technology in action

Cut Waste
Plastic credentials are outdated. Sentry Interactive eliminates the need to print, distribute, and replace physical access passes, preventing thousands of tons of plastic from ending up in landfill.

Make Old Systems Smart
Our readerless mobile access software sits within existing access control infrastructure, giving you all the power of a modern mobile access solution, without tearing out what you already have.

Power Data-Driven Decisions
By tracking access patterns and user behavior, building managers gain powerful insights into energy use and occupancy trends, supporting smarter building operations and ESG reporting.

Enable Sustainable Tenant Experiences
Whether it’s employees using their phone to unlock doors or temporary visitors using a time-limited digital visitor pass, Sentry Interactive simplifies access while keeping everything secure and sustainable.

Leveraging proptech is how CRE can go green

We’re proud to be part of a rising tide of PropTech software solutions driving the smart building revolution. And we’re in good company:

  • Open Energi: Real-time energy insights for better decision-making
  • Measurabl: Visualize and report on ESG data across portfolios
  • Equiem: Empower tenants to track their own carbon impact

Sentry Interactive integrates seamlessly with platforms like these and physical access control systems, offering secure access control via smartphone, and enabling a data-rich, plastic-free, cloud-connected experience.

Let’s talk Impact

Sentry Interactive is committed to helping reduce plastic door credential waste by 20% across North America and Europe over the next 5 years.

Our NFC-powered digital credentials last longer, are more secure, and never end up in the bin. Combined with cloud-based management and real-time control, your building becomes:

  • More energy efficient
  • More tenant-friendly
  • More environmentally responsible

No fobs. No cards. No compromise.

Are you a commercial real estate operator?

Sentry Interactive is ready to help you meet ESG goals through readerless mobile credentialing. You don’t need to rip and replace your access control infrastructure to go mobile, choose interoperable mobile credential software. Get in touch to integrate sustainable NFC mobile access. 

"Sentry’s smart software solution provides the ability to scale and modernize our full portfolio whilst simultaneously enhancing the level of security that our buildings have."
Tobie ChapmanEstates Manager, Colliers
"Sentry’s solutions have been instrumental in amplifying our commitment to innovation. It seamlessly blends with our mission of providing smarter buildings for our customers."
Megan PatelFacilities Manager, BE Offices
"We’ve chosen Sentry as the go-to solution for all our future sites, making it the gold standard for access control in our spaces. This decision ensures that every new location benefits from the same consistent, streamlined, and secure entry experience."
Ben NewtonHead of Operations, Patch
"We have two sites each with different access control systems, neither of which support smartphone access. We were worried we'd have to start from scratch at huge cost but the Sentry Mobile Access system has slotted in right alongside. It's inexpensive, simple to install, and easy to operate"
TomDirector at Cowork
"Since integrating Sentry Mobile Access with our existing ACT door access control hardware we have been able to provide smartphone touch free door entry to our tenants, particularly important during these times where tenants need to feel at ease"
FreddyCEO at Savvy
"I can strongly recommend their mobile access software solution works perfectly alongside my existing Paxton access control hardware"
LisaFD at Estate Insurance Group (EIG)
"Being a multi-tenant building landlord, I need to be able to provide access for multiple tradespeople, and have visibility of the comings and goings to ensure my buildings are secure and run efficiently. Being able to issue visitor passes for specific entry and exit times solves the need to be at the building to let the workmen in".
NickChairman at Property Consolidation, LLP
"Sentry Interactive was the logical access system for us. The UI is intuitive and easy to navigate, and when we need support the team are beyond helpful. We'd highly recommend Sentry Mobile Access to anyone".
SarahProgram Manager at Cisco
"Big fan of Sentry Mobile Access! The app is really easy to use and if you have any problem the support team is really quick and helpful. Everyone in the office comments on how fantastic it is".
ChristillManager at Rainmaking Loft
"It was simple and straight forward to operate, easy and simple to install on my Android phone. I am really impressed. This block also had electronic gates, which I did use, again worked well to get in".
MarkElectrician, RMG Managed Property
"I love Sentry Interactive. It's made my life easier and helped provide additional logs of all time stamped comings and goings from the building. It’s also help me to save money and time".
ArilmaOffice Manager, Property Consolidation LLP
"It seems super safe. The app is really well designed and easy to use. The widget is very convenient to open the door from a distance (especially in times of Covid, when it is nice to avoid touching door handles, etc)".
PedroTenant, RMG Managed Property
“I ended up with a large amount of empty office space that I didn't know what to do with following the pandemic. Sentry Interactive was the perfect solution to sub let the space for coworking. This enabled me to turn desks into hot desks to enable flexible working and use for existing employees that wanted to return to the office”.
LucMD at Liberty Resourcing, Ltd
“Sentry Mobile Access is exactly what I need. I required a room to perform consultations with clients and found an existing office that would be ideal. I pay for the room only when I need it, I turn up and tap to unlock. I can even unlock with one tap on my Apple Watch. It’s simple and easy”.
CharlotteCEO and Founder at The Health Nutritionist
“I required a place to work from and host client meetings in downtown Lisbon. I book and pay for the meeting room a few times a week. To enter the meeting room I use NFC on my iPhone and touch the phone against the tile that has an NFC chip built-in to unlock the door. The Sentry app is easy and quick to use. Works just how I need it too”.
LéoCreative Art Director at LB Dsgns
“After WFH for sometime I got tired of the lack of space, distractions and no separation between work and home. I wanted some flexible workspace every now and then but didn’t want to pay WeWork prices. My friend recommended Sentry Interactive to be able to hot desk at the same place she does. It’s simple to book and pay for the space as and when I need it. All I need is my smartphone to unlock the office door for the time I’ve paid for”.
EliseCRO Specialist at Swift Monkey
“Being a multi-tenant landlord for a few office buildings there are times when space isn’t being used fully. I was able to use Sentry Mobile Access to help fill up the empty space I had when tenants couldn’t come up with internal uses for it. It’s been easy to attract new flexible workspace tenants thanks to Sentry’s app”.
NickChairman, Property Consolidation, LLP
Sentry Interactive
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William Bainborough

Board of Directors

William is an experienced British entrepreneur, founder, and accomplished board executive and advisor for a number of businesses. He is the CEO and co-founder of Doordeck, the world’s only true cloud-based access control aggregator. He is also the managing director and founder of Group Secure, a leader in providing security, CCTV, and access control solutions, products, and installation for high-net-worth individuals in the UK. 

William established his first business at just seventeen and brings 20-plus years of in-depth experience and industry knowledge. He has a proven track record for building businesses from the ground up—and then leading them to profitability and a successful exit across a myriad of sectors including hospitality, retail, security, telecommunications, and e-commerce. William’s leadership, vision, and experience in creating cutting-edge SaaS-based technology platforms will prove invaluable for Sentry Interactive moving forward.

Denis Hébert

CHAIRMAN & CEO

Hébert began his career at Honeywell International where he held several leadership positions including Managing Director for the Automation and Controls business in France and eventually President of the NexWatch Corporation from 1999-2002. Hébert led HID Global as President & CEO over a transformative 12-year period from 2002-2015, where he provided strategic guidance and grew the business tenfold through a mix of strong organic and acquisitive growth. Most recently, Hébert was President of Feenics Corporation which is a cloud-based access control company that was successfully sold to ACRE LLC at the end of 2021. Hébert also served on the Board of Directors for the Security Industry Association (SIA) from 2009-2020 and was nominated to be Chairman of the Board for SIA from 2016-2018. He is currently Chairman of the Board for Nightingale Security based in Newark, CA.

Stephen Taylor Matthews

Board of Directors
Stephen is a very accomplished attorney, member of the Texas State Bar, licensed commercial real estate broker, and an avid philanthropist. He is an experienced executive board member, serving in leadership positions for more than 20 community councils and corporate boards—ranging from Boy Scouts of America to the ABBA Business Leaders Council, and most recently the American Bank BOD, the Real Estate Council of Austin, and the Marbridge Foundation BOT. With more than 35 years experience, Stephen and his firm, Barrond & Adler, L.L.P. are devoted to eminent domain cases in Texas.

Jon Davis

Board of Directors

Mr. Davis is an Experienced corporate board member, having served on boards of public, private equity-backed, and venture-backed companies. Jon possesses deep industry expertise in dairy, food processing, food technology and manufacturing, and food, beverage, and entertainment services. 

During Jon’s tenure of 25 plus years, he’s led operations, research and development, and mergers and acquisitions. He’s served as CEO and has been the founder and active board member for many successful enterprises—from startups to billion-dollar corporations. While COO and CEO of Davisco Foods International, Jon built a state-of-the-art cheese plant which was awarded the United States Dairy processing plant of the year in 2005 by Dairy Foods magazine. Currently, Jon is active with several non-dairy projects, including investments in local real estate, the Wayzata Brewworks, and his latest venture the new CōV restaurant in Edina’s Galleria.

Joe Caldwell

Founder and Chairman of the Board

Joe is an American entrepreneur, investor, and accomplished executive. He has co-founded, founded, and led many successful businesses, including US Internet, a leading fiber internet service provider, Securence, a leading provider of email filtering software, and Ravon, an industry-leading digital voice communications service. 

It was Joe’s venture, Municipal Parking Services (MPS), that inspired him in 2020 to start Sentry Interactive, an advanced touchless and staffless detection platform.

Caldwell currently serves as CEO and Chairman of the Board for Municipal Parking Services (MPS), a global tech company based in Austin, TX responsible for inventing and patenting technologies that assist in parking and security enforcement.

Joe was named one of Minnesota’s 500 Most Powerful Business Leaders for the past two years—and is a seasoned corporate board member. He’s served on boards of public, private equity-backed, and venture-backed companies—and has deep industry expertise in all aspects of digital technology.

Jason Bohrer

Board of Directors

Jason Bohrer is one of the visionaries behind our mission to bring people back together safely and securely, in any environment, through Sentry’s advanced digital communications and detection platform. With over two decades of senior leadership experience, Jason’s track record of success spans across sales, operations, product innovation, strategy, and technology for domestic and global companies like Bexar Technology Partners, CPI Card Group, HID Global, and Motorola, Inc. Prior to launching Sentry Interactive, Jason was actively involved with several key technology transitions across multiple industries, including the contact and contactless EMV transitions in the U.S. payments industry and the adoption of smart card and mobile technologies in the global access and identity market. Jason was an inaugural member of the University of Chicago Executive Institute and holds a bachelor’s degree in Economics from the University of Texas at Austin. He also serves as the Executive Director for two industry-leading not-for-profit organizations: the Secure Technology Alliance and the U.S. Payments Forum.
Brent Terry

Brent Terry

Chief Operating Officer
Brent Terry leads the operations and solutions organizations at Sentry. This includes all product innovation, development, and operations management. A veteran in the technology space, Brent has more than 30 years of experience across a myriad of industries, like physical security technology and building automation, SAAS, hardware and software product development, internet, digital TV, interactive TV, digital media, telecommunications, and medical products and services. Prior to Sentry, Brent has spun up successful startups and led high-performing teams for some of the biggest global, Fortune 500 companies, including ARRIS, Conerco, Motive Communications, SeaChange International, and IBM. Brent holds a BS in Computer Science from the University of Louisiana. He also is the committee Chairman and Program Director for a non-profit organization responsible for the rollout of smart cards for physicians and first responders.