The short answer
A company research tool helps you learn about a business before you sell to it. The main types are firmographic and contact databases (ZoomInfo, Apollo, Sales Navigator), funding and news trackers (Crunchbase, Google Alerts), tech-stack lookups (BuiltWith), public filings (SEC EDGAR, Companies House) and AI research assistants that read a company's site and summarize it with sources.
On this page
Key takeaways
Match tool to question: Databases answer who and how big. News answers what changed. Tech lookups answer what they run. AI answers what it means.
Free sources go further: A company's website, careers page, filings and alerts cover most of what a rep needs, at no cost.
Databases miss the why: Firmographics tell you a company fits on paper. They rarely tell you why it would buy this quarter.
Demand sources from AI: AI research saves the most time, but only if every claim links back to where it came from.
Company Research Tools by Type
Every company research tool is built to answer one kind of question well. Pick by the question you need answered, and most reps end up with one paid database and a handful of free sources.
| Type | Answers | Examples | Typical cost model |
|---|---|---|---|
| Firmographic and contact databases | Who works there? How big are they? | ZoomInfo, Apollo, LinkedIn Sales Navigator | Paid, often per seat or credits |
| Funding and news trackers | What changed recently? | Crunchbase, Google Alerts, Sales Navigator alerts | Free tiers, paid for depth |
| Tech-stack lookups | What software do they run? | BuiltWith, browser extensions like Wappalyzer | Free lookups, paid lists |
| Filings and primary sources | What does leadership say the strategy is? | SEC EDGAR, Companies House, investor relations pages | Free |
| AI research assistants | What does it all mean for my pitch? | General AI assistants, Clay, Sales Navigator Account IQ, Edithly | Varies |
Start with the question, not the tool. "Do they fit?" and "why now?" need different sources, and reps who use one database for both usually get the first answer and miss the second. The guide to prospect research covers which questions matter most.
Firmographic and Contact Databases
Databases are the backbone of list building. They're best at structured facts: industry, headcount, revenue range, location and who holds which title.
- ZoomInfo calls itself an AI platform for go-to-market teams, with large contact and company records plus buyer intent signals.
- Apollo pairs a large B2B contact and account database with buying signals and AI agents for research and outreach.
- LinkedIn Sales Navigator is built on LinkedIn's own network, with lead and account search, saved-account alerts and AI account insights.
Good for: building lists, checking fit and finding the right contact. Weak at: explaining why a company would buy this quarter. If you're comparing databases, see our ZoomInfo alternatives page.
Check freshness before you send. People change jobs and companies change size faster than any database updates. Confirm a contact's current role on LinkedIn before an important email goes out.
Funding and News Tools
News tools answer the timing question. A funding round, a new executive or an expansion is often the best reason to reach out, and these tools surface them.
- Crunchbase focuses on private-company data, funding rounds and predictive signals, such as which companies are likely to raise or expand. It also has an AI assistant for searching that data.
- Google Alerts is free and underrated. Set one per top account for the company name and key executives.
- Sales Navigator alerts flag job changes and account news for leads and accounts you've saved.
Read the source, not the headline. A press release tells you what the company wants you to know; the careers page next to it often tells you what's really changing. The buying signals guide shows which changes deserve outreach.
Tech-Stack Lookup Tools
Tech lookups tell you what software a company runs on its website, which matters when you integrate with, replace or sit beside a specific tool.
- BuiltWith identifies the technologies websites use and lets you build lead lists by technology.
- Browser extensions such as Wappalyzer show a site's technologies as you browse.
- Job posts are the free alternative. A posting that asks for "experience with HubSpot and Snowflake" tells you what's behind the firewall, which website scanners can't see.
Use it to pick the angle. If they run a tool you integrate with, lead with how you fit next to it. If they run a competitor, lead with the problem that tool tends to leave open.
Know the limit. Website scanners only see what runs on public web pages. Back-office tools like ERP, finance or internal systems usually show up in job descriptions instead.
Filings and Primary Sources
Primary sources tell you what leadership has committed to in public, in their own words. For public companies, they're the best strategy research there is, and they're free.
- SEC EDGAR holds filings for US public companies, including annual reports (10-K) with strategy and risk sections.
- Companies House is the UK's free register of company information and filings.
- Investor relations pages carry earnings call recordings or transcripts, investor presentations and shareholder letters.
Search the filing, don't read it. Search an annual report for your problem area ("pricing", "onboarding", "customer retention") and read only those passages. Ten minutes gets you their stated priorities and risks.
AI Company Research Tools
AI research tools read many sources and summarize them, which saves the most time on the "what does it mean" question. They also introduce a new risk: confident claims that aren't true.
- General AI assistants with web browsing can summarize a company quickly. Ask them to cite a source for every claim.
- Clay runs AI research agents (Claygent) across a list, answering the same question for every company in a table.
- Sales Navigator Account IQ summarizes target accounts inside LinkedIn's sales tool.
- Edithly reads a company's website and public signals as it writes outreach and collateral, and lists the facts it used with sources.
Use AI for the first pass, sources for the quote. Let the assistant tell you where to look, then open the page it cites before you repeat a fact to a prospect. If there's no source, treat the claim as a guess.
Verify names, numbers and dates. These are where AI research most often goes wrong. The guide to choosing an AI sales research tool has a full checklist.
How to Choose a Company Research Tool
Most reps need one paid database and a free research routine, not five subscriptions. Add tools when a specific question keeps going unanswered.
If you need... Start with...
Contacts and titles [your contact database]
Whether they fit your ICP Their website + [database firmographics]
What changed recently Careers page, newsroom, Google Alerts
What software they run BuiltWith or job descriptions
Leadership's stated strategy Annual report, earnings call, CEO interviews
A quick summary with an angle AI research assistant that cites sources
Test on companies you know. Run any tool on five current customers: if it gets them wrong, it will get prospects wrong too. For a broader view of sales tooling, see sales prospecting tools, and for deep dives on top accounts, account research.
Skip the copy-paste step. Research that sits in a tab doesn't book meetings. Edithly's prospect research reads the company's website and public signals and goes straight into the email, call script or one-pager, with the facts and their sources listed so you can check them.
How Edithly does it
Research a company and turn it into outreach in three steps
Edithly reads a company's website and public signals when it generates, then writes outreach or builds collateral around what it found, with the facts and their sources listed in Email Outreach.
- 1
Click the Email Outreach tile
Open your product's Home and pick Email Outreach, or another material such as One Pager or Cold Call Script.
- 2
Enter the company and website
Add the company name and website. Optionally add a contact name, their LinkedIn and a note on what you want to lead with.
- 3
Generate and check the basis
Click Generate email outreach. The personalization basis lists each fact used with a source link, next to the emails built from it.
Website
Ready
- Personalization basis
- Fact + source link
- Recent move
- Hiring signal
- Do not say
- By hand
- 15 to 30 minutes across several tools per company
- With Edithly
- A couple of minutes per company, sources included
Frequently asked questions
What is the best company research tool for sales?
It depends on the question. For contacts and firmographics, databases like ZoomInfo, Apollo and LinkedIn Sales Navigator are the standard. For funding and private-company news, Crunchbase. For the technology a company runs, BuiltWith. For a quick read on what a company is focused on, an AI research assistant that cites its sources saves the most time.
How can I research a company for free?
Start with the company's website, especially its customers page, careers page and newsroom. Add the LinkedIn company page, Google News and Google Alerts, and for public companies, filings on SEC EDGAR or Companies House in the UK. Free tiers of tech-lookup and funding tools fill specific gaps.
What is firmographic data?
Firmographic data describes a company the way demographics describe a person: industry, employee count, revenue range, location, ownership and growth. It's used to check whether a company fits your ideal customer profile and to build target lists. It doesn't tell you what the company is focused on right now.
Can AI tools research companies accurately?
They can summarize a company quickly and well when they read current sources, such as the company's own website and recent news. They make mistakes with similar company names, outdated pages and inferences presented as facts. Use tools that show a source for each claim and check any number, name or date before using it.
Is Edithly a company research tool?
Partly. Edithly reads a company's website and public signals when it writes outreach or builds collateral, and Email Outreach lists the facts it used with source links. Suggested Prospects finds companies that fit your ICP, each with a reason and a source. It isn't a firmographic or contact database, so pair it with one for contact details.