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Best TheirStack Alternatives in 2026

#21 of 32 in Account Enrichment SoftwareTechnographic Data Software

15 account enrichment software our editors would look at instead of TheirStack, in our ranking order.

7.2/10Editor score
TheirStack7.2 Visit TheirStack

TheirStack: A focused enrichment platform for technology, hiring, firmographic, and intent signals. Where it falls short: the $49 monthly API tier provides 1,500 API credits.

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  1. Clay

    Best forTeams needing broad, automated enrichment workflows

    Broad enrichment, waterfall workflows, AI research, and CRM synchronization in one platform.

    Free plan · paid from $167/mo (annual) · 14-day trial Our Clay verdict → Visit Clay
    6.0/10★★★☆☆
    Visit Clay
  2. Leadspace not yet scored

    Best forEnterprise-grade profiles and identity resolution

    Enterprise-grade profiles, identity resolution, enrichment, scoring, and activation in one platform.

    Pricing on request Our Leadspace verdict → Visit Leadspace
    —not yet scored
    Visit Leadspace
  3. Enigma

    Best forAffordable company intelligence and account matching

    Affordable company intelligence with matching, enrichment, segmentation, and API access.

    • Organizational data
    • Technographic data
    • Business-change data
    Free plan · paid from $20/mo Our Enigma verdict → Visit Enigma
    9.0/10★★★★☆
    Visit Enigma
  4. Best forSignal-rich API enrichment at usage-based prices

    A flexible enrichment API for teams that need broad company signals at usage-based prices.

    Free plan · paid from $40/mo Our PredictLeads verdict → Visit PredictLeads
    5.0/10★★☆☆☆
    Visit PredictLeads
  5. Ocean.io

    Best forWaterfall enrichment with CRM synchronization

    A credit-based enrichment platform for teams combining multiple data sources with CRM workflows.

    3.0/10★★☆☆☆
    Visit Ocean.io
  6. Best forLow-cost enrichment with scoring and automation

    Low-cost enrichment with firmographic data, ICP scoring, and workflow automation.

    • Technographic data
    • Business-change data
    • Company matching
    Free plan · paid from $9/mo Our Vera Enrich verdict → Visit Vera Enrich
    8.2/10★★★★☆
    Visit Vera Enrich
  7. Best forHigh-volume company and people discovery

    High-volume company and people discovery with enrichment, search, APIs, and bulk jobs.

    4.0/10★★☆☆☆
    Visit CompanyEnrich
  8. Best forLarge-scale data operations and intent research

    A high-volume enrichment platform for teams researching companies, people, jobs, and intent.

    From $49/mo · 7-day trial Our Coresignal verdict → Visit Coresignal
    5.0/10★★☆☆☆
    Visit Coresignal
  9. Best forCRM-connected enrichment with approval controls

    A broad enrichment platform for teams needing CRM control and data provenance.

    • Organizational data
    • Technographic data
    • Business-change data
    9.0/10★★★★☆
    Visit AstroFabric
  10. Explorium

    Best forEnterprise enrichment with broad delivery options

    Broad enrichment coverage with flexible delivery for enterprise GTM and AI-agent workflows.

    • Technographic data
    • Business-change data
    • Company matching
    7.2/10★★★★☆
    Visit Explorium
  11. Harmonic

    Best forCompany and people intelligence with bulk delivery

    Broad company and people intelligence across web, API, workflows, and data warehouses.

    • Business-change data
    • Company matching
    • Firmographic data
    Pricing on request Our Harmonic verdict → Visit Harmonic
    5.4/10★★★☆☆
    Visit Harmonic
  12. Grata

    Best forPrivate-company research and CRM enrichment

    A broad private-company research and CRM enrichment platform for deal teams.

    • Organizational data
    • Business-change data
    • Company matching
    Pricing on request Our Grata verdict → Visit Grata
    6.2/10★★★☆☆
    Visit Grata
  13. Best forTechnographic and market intelligence programs

    A broad intelligence platform for technographic research, enrichment, and account prioritization.

    Pricing on request Our HG Insights verdict → Visit HG Insights
    3.0/10★★☆☆☆
    Visit HG Insights
  14. BuzzBoard

    Best forSMB account intelligence and prospect prioritization

    A focused SMB intelligence platform for prioritization, enrichment, and sales activation.

    • Organizational data
    • Technographic data
    • Business-change data
    Pricing on request Our BuzzBoard verdict → Visit BuzzBoard
    7.0/10★★★★☆
    Visit BuzzBoard
  15. Best forAccount intelligence with ICP and intent scoring

    A broad enrichment and scoring platform with useful free access and costly paid entry.

    • Technographic data
    • Company matching
    • Firmographic data
    Free plan · paid from $249/mo (annual) Our Sona Enrich verdict → Visit Sona Enrich
    7.4/10★★★★☆
    Visit Sona Enrich

TheirStack Alternatives: Common Questions

What is the best alternative to TheirStack?

Clay: #1 in our Account Enrichment Software ranking, with an editor score of 6.0 out of 10. Broad enrichment, waterfall workflows, AI research, and CRM synchronization in one platform.

Is there a free alternative to TheirStack?

Yes. Clay, Enigma, PredictLeads, Vera Enrich and Sona Enrich have a free plan or a free tier.

What is the cheapest paid alternative to TheirStack?

Of the alternatives here that publish a price, Vera Enrich starts lowest, at $9/mo.

TheirStack vs Each Alternative

#ToolFree planPaid fromFirmographic dataTechnographic dataOrganizational dataBusiness-change dataMonthly record limitScore
21TheirStack—$49/moYesYes—Yes500 /mo7.2
1ClayYes$167/mo—————6.0
not scoredLeadspace————————
3EnigmaYes$20/moYesYesYesYes—9.0
4PredictLeadsYes$40/mo—————5.0
5Ocean.ioNo——————3.0
6Vera EnrichYes$9/moYesYes—Yes1000 /mo8.2
7CompanyEnrichNo$49/mo—————4.0
8CoresignalNo$49/mo—————5.0
9AstroFabricNo—YesYesYesYes500 /mo9.0
10ExploriumNo—YesYes—Yes—7.2
11Harmonic——Yes——Yes—5.4
12Grata——Yes—YesYes—6.2
13HG InsightsNo——————3.0
14BuzzBoardNo—YesYesYesYes—7.0
15Sona EnrichYes$249/moYesYes———7.4

Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026