G2 Vendor Directory

TheirStack

#51 in Lead Mining

A Coruña, ES

1

Products on G2

17

Total reviews

4.9

Avg. star rating

  • TheirStack ranks #51 in Lead Mining.
  • Reviews across TheirStack's portfolio declined 33.3% quarter-over-quarter.
  • TheirStack's 1 product span 2 categories on G2.
  • Small Business is the largest segment among reviewers, at 88.2%.

Traffic & LLM citations

Monthly G2.com page views and citations by AI answer engines, summed across TheirStack's products.

Page views and citations · TheirStack

Source: G2 review data

Winning from

Based on reviewers who said they switched from another vendor's product.

1

Apify

1 switched
2

Nubela Pte Ltd

1 switched
3

Apollo.io

1 switched

Key stats

-33.3%

#51

2

Small Business

2022

5

A Coruña, ES

Adoption by company size

SegmentShare of reviews
Small Business88.2%
Mid-Market11.8%
Enterprise0.0%

Quarterly history

QuarterTotal reviewsAvg. rating
2024 Q415.0
2025 Q315.0
2025 Q425.0
2026 Q124.8
2026 Q235.0
2026 Q325.0