TheirStack alternatives: 5 options, honestly compared

Disclosure first: this page is written by Reqbeat and we list ourselves at the top, so apply a discount. The rest of the list is ordered by how close each product sits to TheirStack's core use case, every factual claim comes from the vendor's own public site as of October 2026, and each entry says when that vendor — or TheirStack itself — is the better pick.

Why people look for an alternative

TheirStack is a good product: a large job-posting dataset (251M postings, 195 countries, by their numbers) with a strong technographics layer. The reasons people go looking elsewhere are usually one of three: the credit-based pricing does not fit a continuous workflow, the dataset-first model means push delivery is gated behind API plans, or they need something TheirStack does not sell — contacts, bulk raw data, or an event feed with evidence semantics.

Match the tool to the job, not the category name.

1. Reqbeat — events you subscribe to, not a dataset you query

That is us. Reqbeat's primitive is the watch: register a company or a saved search with a webhook URL, and new matching reqs are pushed to you as events — opened, reobserved, reposted, closed — each carrying the real posting with its ATS link. The corpus is re-read every 3 hours across 7 regions, the dedup rule is published on the method page, and when we cannot see a company the payload says no_ats_signal instead of pretending "not hiring". REST, MCP and Clay/n8n are first-class; the free tier includes 3 live watches and 50 delivered changes a month, no card.

Pick Reqbeat over TheirStack when your workflow is a trigger, not a list: same-day outbound on new reqs, client-list monitoring for agencies, or agents consuming hiring signals over MCP. Stay with TheirStack when you need technographics or years of posting history — we do not sell either. Full head-to-head: Reqbeat vs TheirStack.

2. Mantiks — when you want contacts bundled with the signal

Mantiks positions itself as a prospecting platform for recruiters: it detects hiring needs and attaches the decision-maker — LinkedIn profile, business email, phone — to each one. There is an API covering search, monitoring and contact enrichment, and a 7-day free trial.

Pick Mantiks when you are a recruiter or a lead-gen team that wants posting-plus-person in one purchase. Look elsewhere when you want clean company-level signal infrastructure — bundled person data is exactly what some teams must avoid for compliance reasons (Reqbeat ships none, by design).

3. PredictLeads — the widest company-intelligence bundle

PredictLeads sells structured company intelligence aimed at AI agents: job openings (270M+ historical records back to 2016, 1M+ found weekly, by their numbers) alongside news events, funding and technology detections. Delivery is flexible — REST APIs, flat files, webhooks and MCP — and signup includes 100 free API requests a month.

Pick PredictLeads when you want several company-signal families from one vendor, or bulk flat-file delivery into a warehouse. Look elsewhere when you want a purpose-built hiring feed: job postings are one product line among many there, and freshness semantics (what was detected when, deduplicated how) are not the published contract that a dedicated feed gives you.

4. Coresignal — raw bulk data for data teams

Coresignal sells the raw material: 482M+ job postings with 85+ fields and history to 2020 (their numbers), delivered as bulk datasets or APIs. The customer is a data team building its own models or products on top, not a GTM operator who wants a signal to act on today.

Pick Coresignal when you are building a product or model and need postings as training or enrichment data at volume. Look elsewhere when you would have to build the watching, dedup and delivery layer yourself just to get an alert.

5. Crustdata — a people-and-company data layer with signals attached

Crustdata offers a real-time B2B data layer — 1B+ people and 60M+ company profiles, by their numbers — with job, headcount and funding signals, delivered over API, webhooks, datasets and MCP. Hiring signals are one feature of a broad enrichment graph rather than the core product.

Pick Crustdata when you want enrichment and signals from the same graph, especially people data. Look elsewhere when you want depth on the hiring signal itself — posting-level evidence, published dedup, coverage honesty — rather than breadth around it.

The fast way to choose

• Trigger-driven GTM (watch → webhook → act): Reqbeat.
• Tech-stack targeting and posting history: TheirStack.
• Recruiting with contacts included: Mantiks.
• Many signal types, flexible delivery: PredictLeads.
• Raw bulk postings for a data team: Coresignal.
• Enrichment graph with signals: Crustdata.

Whatever you shortlist, hold it to the three questions from our evidence standard: can I open the artifact, how old is it and how do I know, and what does silence mean? For the broader ranking across the category, see best hiring signals API in 2026; the same exercise for other vendors is on Mantiks alternatives and PredictLeads alternatives; to try the event-feed model in an afternoon, start with the webhook how-to.