Company research before an interview is not about memorising facts from the About page. It's about understanding the business well enough to give relevant answers, ask intelligent questions, and show that you're genuinely interested in this company, not just any company. The difference between a candidate who has done the research and one who hasn't is obvious in the first five minutes.

Why research changes how you interview

When you understand the company's current situation, you can tailor your answers to the actual challenges and priorities they're facing. When you ask questions based on real knowledge, you come across as someone who's already thinking like an insider. Both of these things matter enormously to hiring managers. They also reveal whether you're interested in this job specifically, or just any job.

What to find out before you go in

The six things worth knowing before any interview
  • Business model: how does the company make money? Who are their customers?
  • Recent news: what's happened in the last 6-12 months? Fundraising, launches, layoffs, acquisitions?
  • Products or services: what do they actually sell? Have you used it?
  • Competitors: who are their main competitors and how do they differentiate?
  • Culture and values: what do they say about how they work? What do employees say on Glassdoor?
  • The team you'd join: who would you work with? What are their backgrounds?

Where to look

The company website

Start with the About page, product pages, and blog or newsroom. Note the language they use to describe their mission and customers, it often reflects what they value internally.

LinkedIn

Look at the company page for headcount trends and recent posts. Look at the LinkedIn profiles of your interviewers. Understanding their background helps you tailor how you communicate and what you reference.

News and press coverage

Search the company name in Google News. Look for recent funding rounds, product launches, leadership changes, and any press about market conditions in their space. Crunchbase is useful for funding history at startups.

Glassdoor and employee reviews

Read reviews with appropriate scepticism, they skew towards people who left. But patterns across many reviews (management quality, growth opportunity, culture) are informative. Note what you find: it may affect the questions you ask.

Their products or services

If the company has a free product or trial, use it. Nothing signals genuine interest more clearly than having actually engaged with what the company makes.

Research is preparation. The interview is performance.
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How to use what you find

Weave research into your answers naturally. If you're asked "why do you want to work here?" reference something specific: their recent Series B and what it signals about growth, a product feature you found clever, a value they publish that genuinely resonates with you. Specific is always more persuasive than general.

Use research to sharpen your questions. "What does the expansion into APAC mean for this team?" is a much better question than "where is the company headed?" The first shows you've read the news. The second could have been asked about any company.

If you discover something concerning in your research, like a pattern of negative Glassdoor reviews about management, you can ask about it diplomatically: "I noticed some reviews mention rapid change in the team structure. Is that something you're seeing, and how is the team responding to it?"

Prepare well. Then have backup in the room.
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Frequently asked questions

How much time should I spend researching before an interview?
For a recruiter screen: 20-30 minutes on the basics. For a first-round interview: 60-90 minutes. For a final round: 2-3 hours, including reviewing your interviewers' backgrounds and preparing role-specific questions. More rounds deserve more research because the stakes are higher and you have more specific things to dig into.
What if the company is very private or small with little public information?
Focus on what you can find: their LinkedIn, any press coverage, their product or website, any social media presence, and what you can learn from the recruiter before the interview. It's also fine to ask questions in the interview that gather information you couldn't find: "Could you tell me more about the current team structure?" is a legitimate question, not a sign of poor research.
Should I mention my research explicitly in the interview?
Yes, but weave it in naturally rather than announcing "I researched you." Reference what you found in the flow of your answers: "I noticed from your recent blog post that you're expanding into enterprise accounts, which is interesting because in my last role..." That signals research without it feeling like a performance.
What's the most important thing to research?
The business context: what problem does this company solve, for whom, and how is the business doing right now? That underpins everything else. Your answers, your questions, and your pitch all become stronger when you understand the specific situation the company is in at this moment, not just in general terms.