Free reverse email lookup: Find company information from emails

Reverse email lookup is exactly what it sounds like—you start with an email address and work backwards to discover the organization behind it. Instead of searching for contact information, you're uncovering who already contacted you.

Here's what really motivated me to make this tool completely free: According to the FBI, Business Email Compromise (BEC) has become a $55 billion scam over a 10-year period. In 2024 alone, BEC accounted for 73% of all reported cyber incidents, a sharp jump from 44% the previous year. That's not a typo—nearly three-quarters of all cyber incidents now involve fraudulent business emails.

I realized that while enterprise companies have expensive verification systems, small businesses and solo entrepreneurs were left vulnerable. At Seomator, we believe security shouldn't be a luxury. That's why this tool is completely free—no credit card, no registration, no catch. Just instant company intelligence when you need it.

When I designed this tool, I focused on surfacing the information that actually matters when you're evaluating a business contact. Here's what you'll discover instantly:

Company Identification: You'll see the official company name and primary website. I can't tell you how many times I've received emails from addresses that don't match the company name in the signature—that's your first red flag.

Industry Classification: Understanding whether you're dealing with a software company, manufacturing firm, or retail business changes everything about how you approach the relationship. I include this because industry context matters for realistic timelines, pricing expectations, and communication styles.

Employee Count: This metric has saved me countless hours. When someone from a "major corporation" reaches out but you discover they're actually a 5-person startup, it helps you adjust your expectations and approach. Neither is bad—but knowing the truth prevents miscommunication.

Geographic Location: I include headquarters information because time zones matter, regional business practices differ, and frankly, if someone claims to be local but operates from another continent, you deserve to know that upfront.

Company Age: Founded dates tell stories. A company established in 2011, like Intercom in our example, has weathered economic cycles and proven their staying power. Newer companies bring fresh energy but different risk profiles. You need this context.

Professional Network Access: Direct LinkedIn links let you dive deeper immediately. I've found that reviewing a company's LinkedIn—their team, recent posts, and employee engagement—often reveals more than their website does.

‍

Let me share some statistics that keep me up at night and drove me to make this tool as accessible as possible:

The email verification market itself was valued at $124.95 million in 2024 and is projected to reach $232.44 million by 2032. Why? Because only 62% of email addresses submitted through online forms are actually valid—that means more than 1 in 3 submissions are fake or temporary.

But here's what really gets me: In 2023, vendor email compromise attacks were up 137%, and many organizations saw similar increases in 2024. Scammers are getting more sophisticated, and they're specifically targeting trusted business relationships.

I've personally witnessed how devastating these attacks can be. A colleague lost $30,000 when a scammer impersonated their regular vendor with a nearly identical email address—just one letter different. If she'd had a tool to quickly verify the company details behind that email, she might have caught the discrepancy.

‍

After helping thousands of users, I've learned some patterns about how to get the most value from reverse email lookup:

Trust Your Gut: If an email feels off, it probably is. I always verify contacts that involve money, partnerships, or sensitive data. It takes 30 seconds and has saved me from mistakes more times than I can count.

Compare What You See: When reverse lookup reveals company information, compare it against what the sender told you. Mismatches in company size, location, or industry are major warning signs. I once received a "partnership opportunity" from someone claiming to represent a major tech firm—reverse lookup showed a small consulting shop. Not necessarily fraudulent, but definitely worth questioning the claim.

Look for Consistency: Professional businesses maintain consistency across their digital presence. If the email domain doesn't match their website, or if their stated industry doesn't align with their actual business focus, dig deeper before proceeding.

Verify Before Financial Transactions: This is non-negotiable for me. Before sending money, signing contracts, or sharing financial information, I always verify the company behind the email. Given that the average cost per BEC complaint increased from $74,723 in 2019 to $137,132.03 in 2023, the stakes are too high to skip this step.

‍

I want to share some numbers that fundamentally changed my perspective on email verification:

75% of cyberattacks start with a deceptive email—whether it's malware, credential theft, or impersonation scams. That means three out of every four breaches could potentially be prevented with better email verification practices.

Even more concerning: 80% of people will report an email as spam only because "it looks like spam". But modern scams don't look like spam anymore—they look like legitimate business correspondence. 65% of email marketers have adopted AI-driven tools for legitimate purposes, but guess who else uses AI? The scammers. They're crafting increasingly convincing messages that pass the "eye test."

Here's what keeps me building better tools: 70% of organizations have been targeted by at least one BEC attack, and organizations with 50,000+ employees have nearly a 100% chance of experiencing at least one BEC attack per week.

‍

I get asked this constantly: "What's the catch? Why is this free?"

The answer is simple: I believe security should be accessible to everyone. At Seomator, we're building a suite of SEO and business intelligence tools. While we offer premium features for enterprise needs, basic email verification should never be locked behind a paywall.

The email verification market is expected to grow from $620 million in 2024 to $1.44 billion by 2033—clearly there's demand. But I've watched too many small businesses and solo entrepreneurs become victims because they couldn't afford enterprise-level verification tools.

My philosophy: if I can help prevent even one person from falling victim to a $137,000 scam by offering free verification, it's worth it. Besides, when you experience the quality of our free tools, you'll remember Seomator when you need more advanced features for your business.

‍

Let me walk you through interpreting the results you'll see:

Domain Analysis: When you lookup an email like ivan@intercom.com, the domain (intercom.com) connects directly to the company's infrastructure. This isn't a Gmail or Yahoo address—it's corporate infrastructure that requires setup, maintenance, and actual business operations. That's your first layer of verification.

Industry Context: In our Intercom example, you'd see "Software Development" as the industry. This tells me they're in the tech space, likely operate on tech timelines, understand digital products, and probably have higher-than-average salary expectations. All useful context before negotiations.

Employee Range Intelligence: Seeing "501-1000 employees" for Intercom immediately tells me this is a mid-to-large company with established processes, multiple decision-makers, and likely slower approval chains than a startup. When I'm pitching services or negotiating partnerships, this insight is invaluable for setting realistic expectations.

Geographic Insights: San Francisco headquarters signals several things to me: tech industry concentration, higher operational costs, potential VC backing, and West Coast time zone considerations. It's not stereotyping—it's understanding the business environment that shaped the company.

Timeline Context: Founded in 2011 means Intercom has survived multiple market cycles, the 2020 pandemic disruption, and various industry shifts. That's 14+ years of operations—they're not a fly-by-night operation. That track record matters when I'm evaluating partnership stability.

‍

I'll be transparent about my workflow. Here's when I reach for reverse email lookup:

Morning Email Triage: Every morning, I scan new business inquiries. Any sender I don't recognize gets checked. It takes seconds per email but has saved me from numerous scams and time-wasters.

Partnership Evaluation: Before my team invests hours in partnership discussions, I verify the company behind the contact. I've learned that 10 minutes of upfront research prevents days of wasted effort on illegitimate opportunities.

Vendor Verification: When existing vendors send payment changes or new account details, I verify every single time. I've caught two attempted vendor impersonation scams this way—both times, the email was nearly identical to our real vendor, but reverse lookup revealed different companies entirely.

Competitive Research: When competitors' employees reach out or when I encounter their team at events, I use reverse lookup to quickly understand their company context. It helps me gauge competitive positioning without lengthy research sessions.

Recruitment Due Diligence: When candidates claim to work at specific companies, I verify it. Resume fraud is more common than people think—I've encountered several instances where claimed employment didn't match the company behind their email address.

‍

The digital landscape has changed dramatically in the past few years, and email remains the primary business communication channel. 93% of people check their email daily at work, and 35% spend between two to five hours a day reading and writing emails.

This heavy reliance makes email the perfect attack vector. 91% of cyberattacks start with a phishing email. Cybercriminals don't discriminate—they target businesses of all sizes, from solo entrepreneurs to Fortune 500 companies.

What worries me most is how sophisticated these attacks have become. BEC attacks have seen a 1,760% year-over-year increase, jumping from just 1% of all cyber attacks in 2022 to 18.6% of all attacks recently. That's not incremental growth—that's an explosion.

The scammers are using the same AI tools legitimate businesses use. They're crafting perfect emails with no spelling errors, appropriate terminology, and convincing scenarios. The old advice of "look for typos and poor grammar" doesn't work anymore.

‍

Let me share some real examples from users who've contacted me:

The Almost-Partnership Disaster: A user was about to sign a six-figure partnership agreement when they decided to verify their contact's company. Reverse lookup revealed the "corporate headquarters" was actually a residential address, and the "50-person company" had no employees listed anywhere. They avoided a potential scam disguised as a legitimate business opportunity.

The Vendor Impersonation: An accounting manager received an invoice from their regular supplier with updated bank account information. Something felt slightly off, so she checked the email through our tool. The reverse lookup showed a completely different company than their actual supplier. She flagged it to her boss, who confirmed it was a scam—their real supplier never changed accounts.

The Job Scam: A job seeker received an offer from what appeared to be a reputable company. When he verified the recruiter's email through our tool, he discovered the domain belonged to a completely unrelated business. Further investigation revealed it was a job scam designed to steal personal information during the "onboarding process."

‍

Using SEOmator's reverse email lookup is absurdly simple: paste the business email address in the search field, click "Find Company," and get instant results. No forms to fill out, no account to create, no credit card to enter.

I designed it this way intentionally. In my experience, if a security tool requires more than 30 seconds to use, people won't use it consistently. And consistent verification is what actually prevents fraud.

The tool works on any device—I use it constantly on my phone when I'm reviewing emails outside the office. Instant intelligence wherever you are, whenever you need it.

My Commitment to Privacy and Transparency

I want to be completely transparent about privacy: your searches are private. I don't sell your lookup data, I don't share your queries with third parties, and I don't build profiles of user behavior.

The information we surface comes exclusively from publicly available business sources that companies have voluntarily made accessible. We don't access private databases, scrape personal information, or use techniques that violate privacy expectations.

If you have specific compliance requirements, I'm happy to provide documentation of our data sources, processing methods, and privacy protections. Transparency builds trust, and trust is what this tool is all about.

The Bottom Line: Why This Matters

After everything I've learned building this tool and working in this space, here's what I know for certain: email verification isn't paranoia—it's professionalism.

In a world where over 90% of businesses globally experienced a phishing attack in 2024, and where scammers use the same sophisticated AI tools as legitimate businesses, verification has become a baseline requirement for responsible business operations.

I built Seomator's free reverse email lookup tool because I believe every professional deserves access to the intelligence they need to make informed decisions. Whether you're a solo entrepreneur, a small business owner, or part of a growing team, you should have the same verification capabilities that were previously only available to enterprises with massive security budgets.

This tool is my contribution to leveling that playing field. It's completely free, it will stay completely free, and I'm constantly improving it based on user feedback.

Try Seomator's free reverse email lookup tool today. Paste any business email address and discover the company behind it in seconds. Make smarter business decisions with instant company intelligence—no registration required, no credit card needed, completely free forever.

Because in my experience, the best business relationships start with trust, and trust starts with verification.

‍