--- title: TheirStack Reviews meta_title: 'TheirStack Reviews 2026: Details, Pricing, & Features | G2' meta_description: Filter 15 reviews by the users' company size, role or industry to find out how TheirStack works for a business like yours. aggregate_rating: rating_value: 4.9 review_count: 15 scale: '5' date_modified: '2026-08-07' parent_category: name: Marketing url: https://www.g2.com/categories/marketing --- # TheirStack Reviews **Vendor:** TheirStack **Category:** [Market Intelligence Software](https://www.g2.com/categories/market-intelligence) **Average Rating:** 4.9/5.0 **Total Reviews:** 15 ## About TheirStack TheirStack is a sales and marketing tool designed to identify potential customers based on technology usage and hiring signals. It tracks over 7,000 technologies and analyzes 50 million job postings across 100 countries to provide insights into companies' tech stacks and hiring needs. TheirStack helps SaaS companies, recruiting agencies, and consulting firms stay ahead by: - Setting up alerts for specific job titles, keywords in job descriptions, and technologies to be the first to know about new job openings. - Discovering companies using specific technologies, such as programming languages, CRM systems, databases, SaaS solutions, ERPs, and frameworks. ## TheirStack Pros & Cons **What users like:** - Users appreciate the **affordability** of TheirStack, benefiting from flexible discounts and streamlined automation for their needs. (2 reviews) - Users appreciate the **responsive customer support** of TheirStack, exemplified by clear communication and timely resolutions. (2 reviews) - Users find TheirStack to offer **exceptional ease of use** , enhancing workflow with seamless integration and automation. (2 reviews) - Users praise the **easy integrations** of TheirStack, streamlining connections and automating job offer collection seamlessly. (2 reviews) - Users love the **seamless API integrations** of TheirStack that streamline data collection and enhance productivity effortlessly. (2 reviews) - Automation (1 reviews) - Communication (1 reviews) - Users appreciate the **data accuracy** of TheirStack, finding it reliable and beneficial for identifying potential leads. (1 reviews) - Efficiency (1 reviews) - Features (1 reviews) **What users dislike:** - Users desire **cheaper tiers** for TheirStack as the current pricing is seen as too expensive for many customers. (1 reviews) - Users feel the product lacks **customization options** , making it feel generic and not tailored to specific needs. (1 reviews) ## TheirStack Reviews ### 1. A helpful service **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Information Technology and Services | Small-Business (50 or fewer emp.) **Reviewed Date:** December 24, 2024 **What do you like best about TheirStack?** We've used theirstack to find leads for our software development services - companies using particular technologies in their products. From the response we get, the data we got seems to be quite accurate. **What do you dislike about TheirStack?** Hard to think of any, since we've got exactly what we've been looking for. **What problems is TheirStack solving and how is that benefiting you?** It helps to find companies using particular software development technologies in their work. This allowed us to narrow down the batch of the companies we're reaching out to. - [View TheirStack pricing details and edition comparison](https://www.g2.com/products/theirstack/reviews?filters%5Bsentiment_snippet%5D=1497792&qs=pros-and-cons§ion=pricing&secure%5Bexpires_at%5D=2026-08-14+23%3A31%3A18+-0500&secure%5Bsession_id%5D=b2ee314a-3181-4757-b00d-e5c5b7771931&secure%5Btoken%5D=857ddf839fa298c3b64e0ed4a17c18f50ffd997eea26697b625f22b18ed191f0&format=llm_user) ## TheirStack Integrations - [Clay](https://www.g2.com/products/clay-com-clay/reviews) - [Findymail](https://www.g2.com/products/findymail/reviews) - [Instantly](https://www.g2.com/products/instantly/reviews) - [LinkedIn Sales Navigator](https://www.g2.com/products/linkedin-sales-navigator/reviews) ## TheirStack Features **Lead Generation** - Lead Builder - CRM Integration - Marketing Automation Integration - Social Media Integration - Data Import & Export Tools **Data collection** - Natural Language Processing (NLP) - Data Sources - Custom Research Sources - Lead Enrichment - Advanced Data Collection **Agentic AI - Lead Mining** - Cross-system Integration - Proactive Assistance **Segment Trending** - Web - Social - Benchmarks - Finance **Analysis** - Custom Dashboards - Reports - Integrations **Platform** - Search - User, Role, And Access Management - Mobile User Support - Alerts - Collaboration - Compliance **Agentic AI - Market Intelligence** - Cross-system Integration - Proactive Assistance ## Top TheirStack Alternatives - [Apollo.io](https://www.g2.com/products/apollo-io/reviews) - 4.7/5.0 (9,411 reviews) - [Similarweb](https://www.g2.com/products/similarweb/reviews) - 4.4/5.0 (1,163 reviews) - [GTM Workspace - Powered by ZoomInfo](https://www.g2.com/products/gtm-workspace-powered-by-zoominfo/reviews) - 4.5/5.0 (8,875 reviews)