How to Scrape and Verify 10,000 SaaS Leads in Under 10 Minutes (Four-Tool Stack)
A four-tool workflow to pull, filter, export, and verify 10,000 SaaS company contacts fast — without burning your domain on bad emails.
Most people trying to build SaaS lead lists either start in the wrong place or skip verification entirely. Both mistakes kill campaigns before a single email gets sent. This is the exact four-tool workflow I use to scrape and verify 10,000 SaaS companies with contacts in under 10 minutes, and it's the same strategy we've used to help clients generate over $3 million in direct revenue.
The tools: Crunchbase Pro, Apollo.io, ExportList.io, and MillionVerifier. That's it.
Why Crunchbase Comes First (Not Apollo)
Most people go straight to Apollo to find companies. I don't. I start in Crunchbase, and there's a specific reason for that.
Crunchbase carries data you simply won't find in a standard B2B contact database. Funding rounds, recent acquisitions, investor relationships, event participation, website traffic estimates via a Semrush integration, all of it is filterable. When I'm targeting SaaS companies, I want to know they're the right companies before I spend a second looking for contacts inside them.
Here's the actual process: go to the Industry filter in Crunchbase and select SaaS. You'll see around 36,000 companies globally. Filter down to the United States and that drops to roughly 15,000. From there, you can layer on additional filters, employee count, funding status, revenue range, hiring activity, whatever matches your ideal customer profile.
The one limitation worth knowing: Crunchbase caps each list at 1,000 companies. So to get to 10,000, you build 10 lists of 1,000, excluding the previous batch each time so you don't pull duplicates. It's repetitive, but it takes minutes. When you export, the only field you truly need is the company website URL. That's the bridge into Apollo.
Pulling Contacts Inside Apollo
Once you have your 10 CSVs merged into one clean file of company URLs, bring them into Apollo. In the company search, paste those URLs directly into the include list. Apollo will now only surface contacts from within those exact 10,000 companies, no noise, no irrelevant results.
From there, filter by job title. If I'm selling lead generation services, I'm going after founders, owners, heads of sales, and VPs of sales. You can also filter by employee count to cut out enterprise accounts that don't fit your offer. After filtering, I had around 13,500 contacts from the SaaS list in this example.
Here's the problem: Apollo won't let you export all 13,000 contacts at once. That's where the third tool comes in.
ExportList.io: The Cheap Workaround for Apollo's Export Limits
ExportList.io is a third-party Apollo scraper. You copy your Apollo search URL, paste it into ExportList, name your list, select how many contacts you want, and submit. Ten thousand contacts costs about $30 and lands in your inbox as a CSV within roughly 20 minutes.
The output includes LinkedIn profiles, contact information, and email addresses. It looks ready to use. It isn't, not yet.
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Verify Before You Send. Every Time.
This step is non-negotiable. Skipping it is how people burn domains.
Some of the email addresses in that CSV won't be active. Sending to dead addresses causes bounces. Bounces hurt your sender reputation. A damaged reputation means your emails stop landing in inboxes, not just on this campaign, but on every campaign going forward across every account tied to that domain.
Take your CSV into MillionVerifier (you can swap in ZeroBounce or another tool if you prefer). Drag and drop the file and let it run. Results come back in three buckets:
Good: Safe to send. These go into your campaign.
Risky: Can't be fully verified. I always run these through Scrubby.io for a second pass before deciding whether to include them.
Bad: Remove them. Don't send. Don't second-guess it.
This final step is what separates a list that performs from a list that quietly destroys your infrastructure.
The Full Workflow, Condensed
The four tools each own a distinct job:
Crunchbase Pro, find and qualify the right SaaS companies using filters you won't get elsewhere
Apollo.io, find the specific contacts inside those companies
ExportList.io, export at volume without hitting Apollo's limits, for cheap
MillionVerifier, validate every email before it touches your sending infrastructure
Build the lists in Crunchbase, pull contacts in Apollo, export via ExportList, verify in MillionVerifier. That's the whole workflow.
One thing worth being clear about: this is the targeting step. A clean, verified list of 10,000 relevant contacts is the foundation, but it's only the foundation. The copy, the offer, the sending infrastructure, and the follow-up sequence all have to hold up too. Get the list right first, then build the rest of the campaign on top of it.
Key Takeaways
Start in Crunchbase, not Apollo, the SaaS-specific filters and funding data let you qualify companies before you ever look for contacts
Crunchbase caps lists at 1,000 companies; build 10 lists and exclude each batch to avoid duplicates
Paste company URLs directly into Apollo to keep your contact search laser-targeted to your scraped company set
ExportList.io bypasses Apollo's export limits, 10,000 contacts runs about $30
Always verify with MillionVerifier (or equivalent); send only to "good" results, run "risky" through Scrubby.io, and delete "bad" outright
Skipping verification doesn't just hurt one campaign, it degrades domain reputation and tanks deliverability across everything you send going forward
Frequently Asked Questions
Why use Crunchbase instead of just starting in Apollo? Crunchbase has SaaS-specific filters that Apollo doesn't carry, funding rounds, investor data, acquisition history, event participation, and Semrush-powered traffic estimates. Starting there means you're qualifying companies on business signals before you spend any time hunting for contacts.
What's the workaround for Crunchbase's 1,000-company list limit? Build multiple lists of 1,000, excluding each previous batch before saving the next one. To reach 10,000 companies, you repeat the process 10 times. It adds a few minutes but keeps the data clean and duplicate-free.
Why not just export directly from Apollo? Apollo limits how many contacts you can export at once. ExportList.io is a third-party scraper that pulls from Apollo using your search URL. It handles high-volume exports, 10,000 contacts for around $30, and delivers a CSV in roughly 20 minutes.
What happens if I skip email verification? Unverified lists contain dead email addresses. Sending to them causes bounces, which damage your sender reputation and domain health. Once your domain reputation drops, emails stop reaching inboxes across all your campaigns, not just the current one. Verification is the last step, but it's not optional.
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