Looking for a Seamless.AI alternative — or weighing Seamless.AI vs Company Dossier? Here's a fair, accurate read on what each tool does best, so you can pick the right one. Company Dossier is free, built from public sources, and every claim is sourced.
Seamless.AI is a sales-lead and contact-search engine built around finding prospect contact details in real time. It pitches itself as a live search for verified emails and phone numbers, so reps can build lists and reach decision-makers quickly. It's aimed squarely at outbound sales teams who want fresh contact data to fuel prospecting.
Seamless.AI has a limited free entry point, but its useful search volume, credits and team features are sold through paid plans. It's a strong tool for what it's built to do — and that focus is exactly what makes a comparison useful, because Company Dossier is built for a different job.
A general, honest comparison — no invented prices, no straw men.
| Company Dossier | Seamless.AI | |
|---|---|---|
| Price | Free | Seamless.AI has a limited free entry point, but its useful search volume, credits and team features are sold through paid plans |
| Type | Public-source company research | real-time sales-lead & contact-search engine |
| Data sources | Public web (job boards, filings, news, company sites, maps) | Real-time contact-search engine + proprietary lead database |
| Source attribution | ✓ every line linked | Varies |
| Single readable file | ✓ one dossier | Dashboard / database / API |
| Runs in editor, CLI & AI | ✓ web, VS Code, npm, ChatGPT, Claude | Mostly web / API |
| Best for | Fast, free first-pass company intelligence | Building sales lead lists with real-time contact data |
Reach for Seamless.AI when its specialty — building sales lead lists with real-time contact data — is the actual job:
For those jobs, a paid, purpose-built platform is the right call and Company Dossier is not a substitute. We'd rather tell you that than pretend otherwise.
Company Dossier is a fast first-pass intelligence file — free, public-source, fully attributed, and readable in one place. It fits better when:
It's not a contact database and not a replacement for curated paid datasets. It's the step you take first: open a free, sourced file on a company, read its whole story in minutes — overview, people, hiring, money, locations, tech, news, relationships and risk — and decide from there whether deeper paid tools are worth it. And it runs wherever you work: the web app, the VS Code extension, the npm CLI, and inside ChatGPT and Claude.
Yes, for the research side. Company Dossier is free and builds a sourced, nine-section company profile from public sources. It isn't a contact-search engine, so it won't generate lead lists with emails and phone numbers — it gives you a readable, verifiable company file instead.
No. It uses public sources only and is not a lead or contact database. It produces a single sourced company file — context for research, not a list of prospects to reach.
When you want to understand a company deeply and for free — its money, hiring, tech, news and risk, every claim sourced — rather than build a list of contacts to email or call.
open a sourced file on any company in minutes.