When an owner asks me "which site should my property be on," they're usually picturing one big marketplace where every buyer hangs out. That's not how it works. CoStar, LoopNet, and Crexi each attract a different kind of searcher — and if you only understand one of them, you're marketing to a fraction of the real buyer pool.
Here's how the three actually break down in practice.
CoStar — the industry's backbone
Who's there: Brokers and industry professionals. CoStar is where the commercial real estate trade lives — it's the data and research backbone the profession runs on. When you get contacted through CoStar, it's usually another professional working a buyer or a tenant.
That makes CoStar essential for reaching the brokerage community and the institutional side of the market — but it's not where the average business owner starts a search. It's the layer underneath the market, not the storefront.
LoopNet — the public storefront
Who's there: Business owners. People expanding, people starting something new, tenants, and buyers. LoopNet pulls the broadest, most public audience of the three — it's where the average active buyer or tenant goes looking.
If a platform is going to surface a self-directed buyer who isn't working with a broker yet, it's usually LoopNet. That reach matters more than people realize. One of my Arlington Heights sales — two buildings, multi-tenant retail anchored by an Enterprise Rent-A-Car and a doggy daycare, around $2 million — sold to a buyer who came straight off LoopNet. He was a serious investor and business owner, and the listing reaching him publicly is what made the deal.
Crexi — the challenger
Who's there: A more tech-forward, alternative-search audience and a growing base of investors. Certain product types — hospitality and some niche assets — tend to do well on Crexi specifically.
Crexi attracts buyers who like a different, more modern search experience, and skipping it means missing a group that increasingly doesn't bother with the older platforms. For the right asset, it's the platform that produces the buyer the others never would have.
The real answer: all of them, plus a network
So which one is best? None of them, individually. The buyer who closes your deal could come from any of the three — and on a given property I genuinely can't predict which. That's exactly why the answer is to be everywhere at once.
Every listing I take gets syndicated across all six platforms — CoStar, LoopNet, Crexi, the MLS, the RE/MAX network, and my private investor network: every buyer, landlord, seller, and contact I've built over the past decade. The property hits the institutional layer, the public storefront, and the challenger audience simultaneously, plus people I can reach directly who never log into a portal at all.
Then the listing itself has to do its job
Being on every platform only helps if the listing earns the click once it's there. So every property gets fully built out: AI-generated floor plans, a full video walk-through, interior photography, real measurements, and verified zoning. I add every permitted-use keyword the zoning allows, so any business that could operate there finds the listing when they search.
The video tours have been especially effective. I shoot a full walk-through starting from the front door, and buyers have told me it feels like they're standing in the building. For an out-of-area investor weighing several properties, that's often the difference between a showing request and a scroll-past.
The takeaway for owners: don't pick a platform. Pick a process that covers all of them — and a listing built well enough to convert the traffic once it arrives.
