Does MarketSizer integrate with my CRM?

Yes. We integrate directly into Salesforce, HubSpot, Zoho, or your internal CRM. We also offer an open API so you can push GTM signals into any system or workflow.

Will MarketSizer replace my intent tools?

No — we complement and enhance them. Our evidence‑based signals make your scoring and targeting sharper by confirming which intent signals are real.

Where does your data come from?

We combine proprietary on‑demand data collection with public and commercial data sources, DNS and IP record tracking, and competitive subscription monitoring.

How is MarketSizer priced?

Pricing is based on the number of enriched records or signals delivered, with flexible plans for different team sizes. You pay for matched and enriched accounts — no wasted spend.

What's your company culture like?

We're a remote‑first, high‑trust team built on empowerment, transparency, collaboration, and resilience. We value constructive accountability, inclusivity, and a shared commitment to helping GTM teams stop guessing and start winning.

MarketSizer FAQ: Everything you need to know.

Q: What does MarketSizer do?

MarketSizer eliminates GTM Signal Blindness by detecting when your accounts are trialling a competitor, approaching renewal, or at churn risk. We turn this evidence‑based intelligence into precise, timed actions — helping GTM teams win more deals, protect renewals, and uncover expansion opportunities.

Q: How is MarketSizer different from other intent or sales intelligence tools?

MarketSizer provides evidence-based signals rather than intent-only data, offering more accurate and actionable intelligence for GTM teams.

Q: Who is MarketSizer for?

We work with GTM teams at SaaS companies — especially in customer service, helpdesk, and live chat — including Sales, Marketing, Customer Success, RevOps, and Channel/Partner teams.

Q: How does MarketSizer help prevent churn?

We send early alerts when your customers start trialling a competitor or approach renewal, giving your CS team time to act while you can still influence the outcome.

Q: Can MarketSizer help with expansion?

Yes. We identify whitespace in your current accounts — like product gaps, geo‑market adoption, or cross‑sell opportunities — so you can grow revenue from customers you already have.

Q: Does MarketSizer work for inbound-only or PLG models?

Absolutely. Even without outbound teams, we enrich inbound traffic and product sign‑ups with competitive and renewal context so you can prioritise high‑value users and automate retention plays.

Q: How fast can we see value after implementation?

Fast. Many teams see actionable signals in days. A typical CRM sync takes minutes, and early insights appear immediately once your account is active.

Q: How accurate is MarketSizer's data?

We use multi‑source subscription intelligence and proprietary real‑time crawling to validate every signal. This lets us detect most competitive trials within 3–5 days — far faster than intent‑only tools.

Everything you need to know about how MarketSizer B2B SaaS Vendors find companies that are actually in-market. From how it works to pricing, accuracy, and getting started.

What does MarketSizer do?

MarketSizer shows software vendors which companies are actively in-market to buy their product, qualified by ICP fit, purchase intent, and win probability.

Instead of guessing who to target, you see:

Which companies are trialing your competitors right now
Which companies recently churned from incumbents and are evaluating alternatives
Which companies match your best customers' profiles and are in competitive scenarios where you historically win

MarketSizer qualifies every opportunity across three dimensions before you see it:

ICP Fit: Companies that match your best customers' tech stack and competitive profile
Purchase Intent: Real signals from trials, churn, and renewals (not anonymous page views)
Win Probability: Historical win likelihood based on subscription outcomes from 40M+ companies in similar competitive scenarios

Stop wasting time on companies that aren't buying. Focus on qualified opportunities you can actually close.

How is MarketSizer different from other intent or sales intelligence tools?

Most intent tools show you behavioral signals (website visits, content downloads, ad engagement). MarketSizer shows you subscription intelligence which software companies actually use, when they trial alternatives, and historical switching behavior.

MarketSizer

Real subscription data: active tools, trials, churn events
Transparent, inspectable signals with timelines
"Company X is trialing Competitor Y right now"
Full competitive landscape and win probability
Real-time detection with 5-day max lag

Other Intent Tools

Anonymous page views and content engagement
Black-box intent scoring
Generic across all categories
"Someone visited your website"
No competitive context
Lagging indicators

We're not:

A generic enrichment database (like Clearbit or ZoomInfo)
A lead gen agency selling meetings
A contact discovery tool
A behavioral intent platform (like 6sense or Bombora)

We are: Subscription intelligence that shows you which companies are evaluating solutions, which ones you can win, and when to engage.

Who is MarketSizer for?

MarketSizer is built for SaaS subscription businesses, for example in the customer support & live chat category, companies like Zendesk, Intercom, Freshdesk, LiveChat, Crisp, Gorgias.
Specifically, these teams:

Sales Teams

Account Executives who need to know which companies are actively evaluating solutions
SDRs/BDRs who want to prospect into accounts that are actually in-market
Sales leaders who need to prioritise pipeline based on win probability

Marketing Teams

Demand gen teams running ABM campaigns who need qualified target lists
Product marketers who need competitive intelligence
Marketing ops teams who need to enrich CRM data with purchase intent

Customer Success Teams

CS managers who need early warning when customers trial competitors
Account managers looking for expansion opportunities
Renewal teams who want to prevent churn before it happens

If you sell B2B SaaS and struggle to know which companies to target, when to reach out, and which deals you can actually win; MarketSizer is for you.

How accurate is MarketSizer's data?

Vendor Detection Accuracy: 90-95% for active subscriptions and trials, depending on website complexity and deployment method.
Opportunity Qualification: Based on internal validation and early customer usage, at least 8 out of 10 MarketSizer-qualified opportunities are confirmed as ICP-aligned, in-market, and competitively accurate when contacted.

What this means in practice:

When we say a company is trialing a competitor, that signal is detected with 90-95% accuracy
When we qualify an opportunity (ICP fit + purchase intent + win probability), more than 8 out of 10 are confirmed accurate
The remaining 2 out of 10 are typically explained by rapid timing shifts, partial deployments, or internal buying dynamics not visible externally

How we maintain accuracy:

Multiple independent indicators (not single data points)
Real-time verification combined with historical data
Daily refresh with max 5-day lag on new signals
Continuous monitoring and automated quality checks
Customer feedback loop to improve detection

Important: We don't claim perfect certainty. We provide high-confidence probabilities backed by inspectable evidence. Every insight includes timelines and supporting signals so you can verify before acting.

Where does MarketSizer get its data from?

MarketSizer is built on proprietary subscription intelligence combining multiple data sources and detection methods to identify which companies are in-market.
Our data foundation includes:

Evidence-Based Subscription Data

Live and historical software usage across multiple Martech categories
Subscription outcomes of 40M+ companies analysed over 5+ years
>6.4M active subscriptions tracked today
Real-time detection of trials, churn, and switching behavior

Competitive Context & Patterns

Historical win/loss rates across similar competitive scenarios
Incumbent displacement patterns and switching timelines
Market-wide adoption and evaluation trends

Company Intelligence

Firmographic attributes for ICP matching
Tech stack context relevant to your category
Real-time verification of current environment

What makes MarketSizer different: Unlike generic data providers, we don't just aggregate information. We qualify every opportunity across ICP fit, purchase intent, and win probability before you see it. Our models are trained on millions of subscription outcomes specific to the customer support & live chat category, giving you intelligence you can't find anywhere else.

We combine multiple proprietary detection methods, historical outcome data, and real-time verification to show you which companies are actually in-market, not just which ones match a demographic profile.

How fast can we see value after implementation?

Most teams see their first qualified opportunities within days of getting started.
‍Here's what the typical onboarding looks like:

Week 1: Setup & First Insights

Quick setup process
Get familiar with how MarketSizer qualifies accounts
Install Chrome extension and start seeing companies actively in-market in your category
Identify high-intent opportunities you can act on immediately

Week 2-4: Team Adoption

Sales team incorporates MarketSizer into their daily workflow
Marketing builds campaigns around qualified target lists
CS identifies early warning signals for at-risk accounts

Most common quick win: Sales teams identify 10-20 high-intent opportunities in their first week and start booking meetings based on competitive intelligence they didn't have before.

You don't need months of setup or training. If there are companies in-market right now (and there always are), you'll see them immediately and can start acting on them.

Does MarketSizer work with my CRM & sales tools?

Yes. MarketSizer works with all major CRMs and sales tools:

CRMs:

Hubspot
Salesforce
Zoho CRM
Freshworks CRM
Pipedrive
Attio

Sales & Prospecting Tools:

Apollo.io
Lemlist
Seamless.Ai
Clay
Charm.io

Social &Web:

LinkedIn Sales Navigator
LinkedIn company pages
Any company website

Workflow Automation:

Make.com
n8n
Latenode
Zoho Flow

How it works: Access MarketSizer's subscription intelligence directly inside the tools you already use, no need to switch between platforms. See which companies are in-market, their competitive context, and win probability without leaving your CRM or prospecting workflow.

Important: You don't need to connect your CRM to use MarketSizer. The Chrome extension works as a standalone tool, and you can also use the MarketSizer web app independently.

Can we try MarketSizer before committing?

Yes, absolutely. You get 500 free credits to start. No credit card required. No time limit.

This lets you:

See which companies in your market are in-market right now
Test the accuracy of our data against your own knowledge
Run a campaign or sales sprint using MarketSizer insights
Validate that qualified opportunities convert better than your current lists

Most teams know within 2-3 weeks whether MarketSizer is delivering value. The 500 free opportunities are enough to run meaningful tests.
Want a deeper evaluation? Book a demo and we'll show you a custom dataset for your specific competitive scenario.

Check out our pricing page for more information.

How fresh is MarketSizer's data? How often does it update?

When you search for a specific company, MarketSizer verifies their current environment in real-time and shows live + historical data (on-demand lookups).

Daily refresh for bulk data:

In-market signals refreshed daily
Maximum 5-day lag for new trial detections
Churn and renewal signals updated continuously

Trial detection: Trials are defined as new installation signals observed within the past 30 days. If a signal persists beyond 30 days, it's treated as an active subscription.

You're seeing current, actionable data, not months-old snapshots. When we say a company is "trialing a competitor right now," that signal was detected within the past 5 days maximum.

How does MarketSizer help prevent churn?

MarketSizer shows when your existing customers trial your competitors, typically 3-6 months before renewal conversations.

Early warning signals:

Customer starts trialing Competitor X
Customer adds new tools to their stack in your category
Customer shows switching behavior patterns

Most CS teams find out about churn risk through

Declining usage metrics (lagging indicator)
Negative feedback in QBRs (often too late)
Surprise non-renewal (way too late)

With MarketSizer, you know immediately when a customer is evaluating alternatives, giving you 3-6 months to intervene, address concerns, and protect the relationship.

Bonus: We also show expansion opportunities, where customers use competitors in other regions or product categories you could consolidate.

Can MarketSizer help with expansion into existing accounts?

Yes. MarketSizer shows where your existing customers use competitors in other regions, product categories, or teams.

Example scenarios:

Customer uses your solution in North America but Competitor XY in EMEA
Customer uses your chat tool but Competitor XY's ticketing system
Customer's subsidiary in another region uses a different vendor

Why you can't see this today: Your usage data only shows what they're doing with YOUR product. You don't know what competitors they're using elsewhere.

With MarketSizer, you can...

Bring data-driven expansion recommendations to QBRs
Show evidence: "We see you're using Competitor XY in Region X. Let's talk consolidation"
Prioritise expansion plays based on competitive context

Does MarketSizer work for inbound-only or PLG models?

Yes. MarketSizer works for any go-to-market motion:

For inbound/PLG teams:

Enrich inbound leads with competitive intelligence before your first call
Know which competitors they're currently using or trialing
Prioritise inbound leads based on ICP fit and win probability
See if they've churned from a competitor recently (high intent!)

For outbound teams:

Build target lists of companies actively evaluating solutions
Know when to reach out based on trial activity
Focus on competitive scenarios where you historically win

For hybrid models: Use MarketSizer for both: qualify inbound leads faster and identify high-intent outbound targets.

MarketSizer works regardless of how prospects find you. It's about qualification, not lead generation.

Will MarketSizer replace my existing intent tools?

No. MarketSizer complements your existing stack.

What MarketSizer adds that behavioural intent tools don't have:

Subscription intelligence (which tools companies actually use)
Competitive context (who they're evaluating, who they churned from)
Win probability (historical data on which scenarios you win)
Real-time trial detection (not just "someone visited your website")

Think of it this way:

Behavioral intent (6sense, Bombora): "Someone at Company X is researching 'customer support software'"
MarketSizer: "Company X is actively trialing Intercom and Zendesk right now, and you historically win 65% of deals in this competitive scenario"

Best practice: Use both. Behavioural intent shows interest. MarketSizer shows action and competitive context.

How does MarketSizer calculate ICP Match?

ICP Match is based on revealed market behavior, not just firmographics.

We look at:

Competitive context: Which vendors they use, have evaluated, or churned from
Tech Stack patterns: Do they use tools similar to your best customers?
Historical overlap: Do they match the profile of companies you've won before
Structured attributes: Size, industry, geography (used for filtering, not sole determinant)

Example: A company might have the "right" size and industry (firmographic match), but if they're using deeply entrenched enterprise incumbents with long contracts, they're a poor ICP fit because they're not realistically winnable.

ICP Match reflects reality: Companies that look like your best customers AND are in scenarios you can actually win.

What's you company culture like?

We're a small, focused team building for B2B SaaS GTM teams who are tired of guessing which accounts to pursue.

What we believe:

Evidence over assumptions: Every claim should be backed by data
Quality over volume: 100 qualified opportunities beat 10,000 unqualified leads
Transparency: You should see the evidence behind every insight
Customer success = our success: We win when you close more deals

How we work:

Fast iteration based on customer feedback
Transparent about limitations (we're not perfect, but we're honest)
Focused on one category (customer support & live chat) right now to do it exceptionally well
Aligned incentives: success-based pricing means we only win when you win

Want to learn more? Book a demo and see how we work firsthand.

What happens if I find inaccurate data?

First: This is expected. No data platform is 100% perfect. We aim for 90-95% accuracy on subscription detection and more than 8/10 accuracy on qualified opportunities.

When you find an inaccuracy:

Flag it in the platform (we have a feedback mechanism)
We investigate and correct the detection rules if needed or an explanation why we think it's right
You get notified when the issue is resolved
Our models improve based on your feedback

Why this happens:

Legacy scripts can remain after tools are removed
Agencies/shared infrastructure can create misleading signals
Tools may be deployed only on subsets of pages
Timing effects (signal appears before purchase or lingers after)

Our philosophy: Treat MarketSizer insights as prioritisation signals, not absolute truth. Validate through outreach, then feed corrections back to us. This continuous loop improves accuracy over time.

Does MarketSizer support languages other than English?

Currently: The platform interface is in English, and we detect subscription signals globally regardless of language.

Data coverage: We track companies worldwide. If they have a public web presence, we can detect it.

International expansion: We're actively expanding coverage and language support. If you have specific market needs, contact us and we'll prioritise based on demand.

How do you handle data privacy and compliance?

Company-level data only: MarketSizer operates on company-level signals and business context. We don't track individual people or PII.

CRM integration:

Optional and customer-controlled
You decide what data is connected and processed
We never share your CRM data with third parties

Compliance:

GDPR compliant
SOC 2 in progress (available upon request)
Detailed documentation on data handling, retention, and access controls available during procurement

Security reviews: If you need a security review, we provide full documentation as part of your procurement process.

What if MarketSizer doesn't cover my specific competitor?

Current: We monitor vendors across multiple Martech categories. If your competitor isn't on the list, let us know.

We continuously add new vendors based on:

Customer requests
Market share and relevance
Technical feasibility of detection

Timeline: Most vendor additions take 2-4 weeks to implement and validate.

Workaround: Even if we don't monitor a specific niche competitor, we can still show you companies in similar tech stack scenarios and competitive contexts.

FAQ

Question

MarketSizer FAQ: Everything you need to know.

Turn competitive deals into winnable opportunities.