You already know the math. The average real estate agent follows up with an internet lead 1.5 times before giving up. The data says it takes 8 to 12 touches to convert a cold lead into a conversation. That gap between what agents actually do and what the numbers require is where deals die.
Inside Sales Agents (ISAs) exist to close that gap. These are trained callers, either human or AI-powered, whose entire job is to contact your leads, qualify them, and set appointments for you. No more staring at a list of 200 Zillow leads that cost $181 each wondering which ones are real. No more guilt about the follow-up calls you didn’t make last Tuesday.
But not all ISA services deliver the same results. Some charge premium rates and set garbage appointments. Others quietly produce 15 to 20 qualified meetings per month for a fraction of what you’d pay a full-time hire. We dug into the numbers, talked to agents using these services, and ranked the 7 best real estate ISA companies based on what actually matters: appointments set, lead quality, and cost per converted client.
Our team will analyze your current pipeline and recommend the right ISA setup for your market, budget, and team size.
Before we get into the list, let’s address the obvious question: why not just make the calls yourself?
The short answer is time and consistency. A producing agent earning $200,000 or more per year values their time at roughly $100 per hour. Every hour spent cold-calling leads that aren’t ready to transact is an hour not spent on listing appointments, showings, or negotiations.
Here’s what the data shows:
The right ISA service pays for itself within the first closed deal of each quarter. Here are the companies making that happen.
Best for: Teams and brokerages wanting a fully managed ISA program
Conversion Monster has built a reputation as one of the most reliable ISA providers in real estate. They assign dedicated, U.S.-based ISAs to your account who work your leads using proven scripts and multi-touch follow-up sequences.
What sets them apart: Their ISAs don’t just make calls. They work across phone, text, and email in coordinated campaigns designed around your CRM and lead sources. Each ISA handles a manageable lead volume so quality doesn’t drop as your pipeline grows.
Key details:
Who it’s best for: Agents and teams spending $3,000 or more per month on lead generation who need someone to actually work those leads. If you’re generating 100+ leads per month and converting under 3%, Conversion Monster is built for that exact problem.
The catch: Not the cheapest option. You’re paying for U.S.-based talent and a managed service, which means the floor is higher than offshore alternatives.
Best for: Solo agents who need a receptionist plus ISA hybrid
Smith.ai started as a virtual receptionist service but has expanded into lead qualification and outbound calling that works perfectly for real estate. Their agents answer calls, qualify inbound leads, and can make outbound follow-up calls on your behalf.
What sets them apart: The combination of receptionist services and outbound calling means you never miss an inbound lead while also staying on top of follow-up. Their AI-assisted live agents handle intake calls with a level of professionalism that most VA services can’t match.
Key details:
Who it’s best for: Solo agents and small teams who need both inbound call handling and outbound lead follow-up. Particularly strong if you’re running paid ads and need every inbound inquiry captured professionally.
The catch: At higher call volumes, costs can escalate quickly since you’re paying per call or per contact. Best suited for agents with moderate lead flow rather than high-volume teams.
Best for: Budget-conscious agents who want a dedicated full-time ISA
MyOutDesk is the largest virtual assistant provider in real estate, and their ISA-trained VAs have become a go-to option for agents who want a full-time caller at a fraction of the in-house cost. Their VAs are based in the Philippines and undergo real estate-specific training before being matched with clients.
What sets them apart: You get a full-time, dedicated virtual ISA for roughly $1,750 to $2,000/month, which is less than half the cost of a U.S.-based equivalent. MyOutDesk handles recruiting, vetting, and ongoing HR, so you get the dedicated resource without the management headache.
Key details:
Who it’s best for: Agents and teams who want a dedicated person working their database and leads 40 hours per week without paying $50,000+ annually. Ideal if you have the scripts and systems already built and just need someone to execute.
The catch: Time zone differences can create scheduling challenges. You’ll need to invest time upfront training your VA on your market, scripts, and CRM. Quality varies by individual VA.
We'll help you figure out whether you need an outsourced ISA, a VA, or an AI-powered solution based on your lead volume and budget.
Best for: Real estate teams that need multiple ISA roles filled
REVA Global specializes exclusively in real estate virtual assistants, and their ISA program is one of the most focused in the industry. Every VA goes through a proprietary real estate training program before being placed with a client.
What sets them apart: Their specialization in real estate means your ISA already understands terms like “pre-approval,” “days on market,” and “listing agreement” before their first day. They offer ISAs specifically trained for cold calling, lead follow-up, circle prospecting, and expired/FSBO outreach.
Key details:
Who it’s best for: Teams that need specialized ISAs for different functions. Want one person cold-calling expireds and another working your Zillow leads? REVA can staff both roles with pre-trained people.
The catch: Like all offshore options, accent and cultural context can occasionally be a factor. REVA’s training mitigates this more than most, but it’s worth doing a test period.
Best for: Agents who want AI-powered lead nurture that mimics a human ISA
Ylopo’s AI assistant (formerly called rAIya) represents the newest category of ISA: a fully AI-powered system that engages leads via text message using natural language processing. It qualifies leads, answers property questions, and sets appointments without any human involvement.
What sets them apart: The AI works 24/7, responds to new leads in under 60 seconds, and can handle unlimited concurrent conversations. It doesn’t take lunch breaks, call in sick, or have a bad Monday. For agents who need instant speed-to-lead on high-volume campaigns, nothing matches the response time.
Key details:
Who it’s best for: Agents already using Ylopo for lead generation, or anyone running Facebook/Google ad campaigns generating 200+ leads per month. The AI handles the top-of-funnel filtering so you only talk to people who are actually ready.
The catch: It’s text-based only. Leads who prefer a phone call won’t get one from the AI. Works best as a first-touch qualifier, not a full replacement for human follow-up. Also most effective within the Ylopo platform, limiting flexibility if you use other lead sources.
Best for: Agents who want an AI assistant that works across any lead source
Structurely offers an AI-powered ISA (called Holmes) that integrates with virtually any CRM or lead source. Unlike Ylopo’s AI, which is tightly coupled to its own ecosystem, Structurely works independently, making it a flexible option for agents pulling leads from multiple channels.
Key details:
What sets them apart: Platform independence. Whether your leads come from Zillow, Realtor.com, Facebook ads, or your IDX site, Structurely’s AI works them all in a single system. The AI handles two-way conversations that feel remarkably natural, and it knows when to hand off to a human.
Who it’s best for: Agents using multiple lead sources who want a single AI qualifying layer across everything. Strong for mid-volume producers (50 to 200 leads/month) who need consistent follow-up without hiring a person.
The catch: AI text conversations still can’t fully replace a skilled human caller for high-intent leads. Conversion rates on AI-set appointments tend to run slightly lower than human-set ones, though the volume and speed advantages often offset the difference.
Best for: Agents looking for a marketplace-style lead and appointment service
SetSchedule takes a different approach from traditional ISA companies. Instead of providing you with an ISA who works your existing leads, SetSchedule generates its own leads using predictive analytics and then connects them with agents in their marketplace. Think of it as a lead gen plus appointment setting hybrid.
Key details:
What sets them apart: You’re not managing an ISA or feeding leads into a system. SetSchedule does the prospecting, qualifying, and scheduling, then hands you a ready-to-go appointment. It’s the most hands-off option on this list.
Who it’s best for: Agents who want appointments delivered without managing the lead gen or ISA process at all. Works well as a supplemental lead source alongside your primary prospecting methods.
The catch: Less control over lead quality and timing since you’re working within their marketplace system. The referral fee model means you’re paying on the back end, which can eat into commission on closed deals. Lead exclusivity can also be an issue in competitive markets.
Book a free consultation and we'll map out the ISA strategy that turns your existing lead flow into booked appointments.
Picking an ISA service comes down to four factors:
1. Your lead volume. If you’re generating fewer than 50 leads per month, an AI-powered option like Structurely or Ylopo AI gives you coverage without the overhead. At 100+ leads per month, a dedicated human ISA (Conversion Monster, MyOutDesk, or REVA Global) starts making financial sense.
2. Your budget. AI solutions run $300 to $600/month. Offshore human ISAs cost $1,500 to $2,000/month. U.S.-based managed ISA services run $2,000 to $3,500/month. The right choice depends on your cost per lead and average commission.
3. Your lead sources. If all your leads come from one platform, a tightly integrated solution works fine. If you’re pulling from Zillow, Facebook, Google, and your website, you need an ISA or AI that plays nice with multiple inputs.
4. Your involvement level. Some agents want to manage scripts and listen to call recordings. Others want to show up to pre-set appointments and close. Be honest about how much oversight you’re willing to provide.
The agents and teams closing the most deals aren’t necessarily generating the most leads. They’re converting at higher rates because every single lead gets contacted quickly, followed up with consistently, and qualified before an agent’s time is spent.
Whether you choose a human ISA, an AI assistant, or a hybrid approach, the ROI math is straightforward. One additional closing per quarter from better lead follow-up more than covers the cost of any service on this list. The real question isn’t whether you can afford an ISA. It’s how many deals you’re leaving on the table without one.
Discover the 5 critical lead generation mistakes that keep agents stuck—and the proven system to become #1 in your market without expensive ads or endless cold calls.
✓ No credit card required • ✓ Instant access
Richard Kastl has been working with real estate professionals to help them generate high-quality leads. He is an entrepreneur with expertise as a web developer, digital marketer, copywriter, conversion optimizer, AI enthusiast, and overall talent stacker. He combines his technical skills with real estate industry knowledge to provide valuable insights and help companies connect with potential clients ready to buy or sell a home.
Text messages have a 98% open rate vs 21% for email. Here are 35 proven text scripts for buyer leads, seller leads, follow-ups, appointment reminders, and referral requests that top-producing agents copy and paste daily.
92% of Realtors use social media to market their business, but most waste hours manually posting every day. These 9 social media management tools automate scheduling, analyze performance, and help real estate agents stay consistent without burning out.
Zillow Premier Agent costs $139–$223 per lead and shares them with 3+ agents. These 7 alternatives deliver exclusive contacts, smarter automation, and higher conversion rates for less money.
Wait — Don't Leave Empty-Handed
See how agents are getting exclusive leads at lower cost than Zillow — delivered straight to their phone. No shared leads. No bidding wars.
4×
More leads
25%
Lower cost
100%
Exclusive
Free 15-minute consultation. No contracts. No pressure.