Phone numbers are easy — almost every local business publishes one. Email is where outreach lists fall apart: a big share of listings don’t show an address, and the ones you can guess often bounce. Here are five ways to find business email addresses that actually work, from slowest to most scalable, with the honest trade-off of each.
1. Read it off the listing and website (manual)
The zero-cost method: open the business on Google Maps, click through to its website, and check the header, footer, and contact page. About two-thirds of local businesses publish an email somewhere obvious.
Trade-off:it’s free and accurate, but brutally slow — a few minutes per business — and the other third leave you empty-handed. Fine for ten leads, hopeless for a few hundred.
2. Guess the pattern (info@ / firstname@)
Most small businesses use a predictable address: info@, hello@, or contact@ the domain. If you have the website, you can often guess the inbox.
Trade-off:fast but risky. Guesses bounce, and a high bounce rate quietly wrecks your sending-domain reputation — which hurts every email you send afterward. Never send to guesses without verifying first (see below).
3. Email-finder tools (Hunter and friends)
Tools like Hunter take a domain and return the likely addresses and patterns it has seen. Useful when you already have a list of websites and just need the inbox.
Trade-off:they’re domain-first, not business-first — you still have to source the list of businesses and their websites yourself — they’re metered by monthly lookups, and they don’t give you phone numbers or addresses. A finishing tool, not a starting point.
4. Crawl the business’s own website
This is the method that actually closes the gap. When a listing doesn’t show an email, the address is usually still on the business’s site — just one click deep, on the contact, about, or (in Germany) Impressum page. A crawler that follows those subpages recovers a large chunk of the “missing” emails.
Trade-off:it’s the highest-yield approach, but building and running a polite, reliable crawler is real engineering. This is the part most people don’t want to build — so it usually comes bundled into a finished tool.
5. Search, enrich, and export in one step
The scalable version combines the above: pull the businesses from Google Maps, crawl each site to fill missing emails, dedupe, and export — without you running any of it. That’s what LeadGriddoes. Type a query like “roofersin Dallas,” preview real results, and unlock a clean list with phone, website, address, and enriched email for $9— CSV, Excel, or one-click to HubSpot, no subscription. (How the different tool categories stack up is on the comparison page.)
Don’t skip verification
However you source emails, validate them before a campaign. Drop malformed and obviously fake addresses, and run a verification pass to catch dead inboxes. Protecting your sender reputation is worth more than squeezing a few extra rows into the send.
A word on doing it legally
Use published business contact details for genuine B2B outreach, keep a lawful basis (in the EU, typically legitimate interest under GDPR Art. 6(1)(f)), and honor every opt-out. LeadGrid only indexes public listings and removes any business on request within 48 hours — the full posture is on the about our data page.
So which method should you use?
Finding ten contacts? Do it by hand. Building a real outreach list? You want methods 4 and 5 working together — Maps for the businesses, website crawling for the missing emails — and you’d rather not build that pipeline yourself. That’s exactly the five-minute job LeadGrid was made for.