6 Best AtData Alternatives

6 Best AtData Alternatives

If your team is looking at AtData for email data and wants other software to compare, this page covers 6 alternatives. They range from company enrichment and B2B data APIs to lead list building and hiring signals. Match the tool to the job your team needs the data to do, then check each pricing page before you commit.

By Rishabh Ambasta, Founder, Modern Inbound.

Quick comparison

What AtData offers

AtData is the tool this page uses as its starting point. Its case study for MyLife.com describes an ECOA service in which AtData corrects typos with its SafeToSend service, then matches a list and profiles to its database of millions of people who have opted in to the ECOA service.

A press release on the AtData site describes a Fraud Consortium that identifies and tracks fraudulent email status and history across its platform. Together these point to a focus on email address quality and email-based risk checks, which suits teams whose main need is cleaner, more trustworthy email data.

Pricing is not published on the pages we reviewed.

What Clearbit offers

Clearbit's homepage says its B2B data business is now part of a wider B2B customer platform. That makes it a fit for teams that want B2B data from a vendor that sits inside a larger customer platform.

Pricing is not published on the pages we reviewed.

What Coresignal offers

Coresignal describes its B2B Data APIs as offering stable, fresh and high-quality business data to support long term product and platform needs. Its self-service platform is designed for quick and easy access to data and API subscription management.

The pricing page lists $1,000 a month at $0.007 per credit. It also shows a Start free option. That mix suits product and data teams that want to build on an API and begin with a small trial.

What Bitscale offers

Bitscale's lead list page describes finding people actively talking about topics relevant to your product on LinkedIn and adding them to your list.

Its pricing page shows four tiers. The Free plan is $0 a month. Growth is $349 a month. Booster is $799 a month. Enterprise is shown with annual billing at $15K and above. Enterprise also appears with custom monthly pricing. Teams that want to build lead lists and try a free plan first have a low-cost way in.

What Company Url Finder offers

Company Url Finder invites visitors to try its Company Name to Domain service. That is a focused job, and it suits teams whose gap is matching company names to web domains before they enrich records or build lists.

Pricing is not published on the pages we reviewed.

What TheirStack offers

TheirStack describes an MCP server so any AI assistant can query its data, with Agent Skills on top that turn a product URL into ready-to-run searches grounded in live counts. Its careers page also says hundreds of people sign up for its product every day.

The pricing page lists monthly API credit plans:

• 1,500 API credits at $49 per month.
• 5,000 API credits at $100 per month.
• 10,000 API credits at $169 per month.
• 20,000 API credits at $240 per month.
• 50,000 API credits at $400 per month.
• 100,000 API credits at $600 per month.
• 200,000 API credits at $900 per month.
• 500,000 API credits at $1,200 per month.

This suits teams that want to query company data through an AI assistant and choose a credit plan that matches their monthly volume.

What PredictLeads offers

PredictLeads describes itself as a company intelligence and technographic data provider, and it calls its data the evidence layer a scoring model runs on.

Each company you follow is billed at 1 credit per month. Up to 100 API calls per month are free. The pricing page also lists a $40 minimum monthly charge. Teams that want to start with free API calls and grow usage over time can use that free allowance to test the data.

Which one fits your team

Start with the buying situation, then match it to a tool. A small team testing one workflow needs something different from a data team building a product on top of an API. These checks help you decide:

• Team size: who will run the tool day to day, and whether that person prefers an app or an API.
• The job: email data, company enrichment, list building and company signals each call for a different tool.
• Contract terms: check whether you can start free, pay monthly, or must commit to annual billing.
• Reporting: look for usage and credit reporting so you can see what each lookup costs.
• Hand-over: decide how records reach your CRM or outreach tools, by API, export or integration.

Some quick matches from the pages we reviewed:

• Email address quality and email-based risk checks: AtData.
• A business data API with a free way to start: Coresignal.
• Lead lists with a free plan: Bitscale.
• Company name to domain matching: Company Url Finder.
• Company data through an AI assistant: TheirStack.
• Company intelligence with free API calls to start: PredictLeads.

Related reading: alternatives to Coresignal, alternatives to Datagma, alternatives to Crustdata, Clay vs Clearbit and People Data Labs vs Coresignal.

How we compared

We compared the vendor's public pricing and product pages, checked in October and November 2026. This comparison is based on each company's own public pages as of November 2026. Where a page lists a price, it appears in the table as shown on that page. Where no price appeared, we say so plainly.

Frequently asked questions

Which AtData alternatives offer a free way to start?

Coresignal shows a Start free option, Bitscale lists a Free plan at $0 a month, and PredictLeads lists up to 100 free API calls per month.

What does AtData offer?

AtData's public pages describe an ECOA service that matches a list and profiles to a database of millions of opted-in people, plus a Fraud Consortium that tracks fraudulent email status and history.

How does TheirStack charge for API credits?

TheirStack lists monthly plans that include 1,500 API credits at $49 per month and 500,000 API credits at $1,200 per month.

Which tool offers business data through APIs?

Coresignal describes its B2B Data APIs as offering stable, fresh and high-quality business data, with a self-service platform for quick access to data and API subscription management.

What does PredictLeads charge?

PredictLeads bills each followed company at 1 credit per month and lists a $40 minimum monthly charge.

How we researched this

Sources:

• atdata.com/case-studies/how-mylife-com-saves-on-acquisition-costs-with-atdata-patented-ecoa-service
• atdata.com/press-releases/towerdata-the-leader-in-email-data-launches-new-email-fraud-prevention-service
• clearbit.com
• coresignal.com/solutions/web-data-apis
• coresignal.com/solutions/company-data-api
• coresignal.com/pricing
• bitscale.ai/product/create-lead-list
• bitscale.ai/pricing
• companyurlfinder.com/blogs/product-data-enrichment
• theirstack.com/en/careers/product-engineer-2026-07-24
• theirstack.com/en/pricing
• predictleads.com/blog/find-companies-switching-platforms
• predictleads.com/pricing

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