To research a company before an interview with AI, ask an AI search tool such as Perplexity, ChatGPT search or Gemini about six things: what the company sells, recent news, its financial results, the team you'd join, your interviewers' public work and the culture it describes. Then open the cited sources and confirm each fact on the company's own pages. Finish by turning what you learned into three questions to ask. Thirty minutes is enough for most rounds.
AI speeds this up because it can scan many pages and summarize them in seconds. It also makes mistakes: it can mix up companies with similar names, present an old article as current, or state a wrong number with confidence. The method below uses AI to find and summarize, and primary sources to confirm.
What to research before an interview
Six topics cover what interviewers expect you to know. For each one, the AI gives you a lead, and the source in the right-hand column confirms it.
| What to look up | Why it matters in the interview | Where to confirm it |
|---|---|---|
| Products and customers | Lets you explain how your role helps the business | The company's website, product pages and documentation |
| Recent news (last 6–12 months) | Launches, reorganizations and acquisitions often shape the role you're interviewing for | The company's newsroom or official blog |
| Financial results | Context for growth, priorities and risks | Public companies: the annual report (Form 10-K), quarterly reports (Form 10-Q) and the investor relations page. Private companies: funding announcements from the company or its investors |
| The team and the role | Tells you which problems you'd work on | The job description, team pages, and the company's engineering, design or product blog |
| Your interviewers' public work | Gives you common ground and sharper questions | Their professional profiles, talks, articles, papers or open-source projects |
| Culture and values | Helps you choose stories that match how the company says it works | The careers page and any published values or principles |
For public US companies, the SEC's EDGAR filing search gives free access to company filings. As Investor.gov explains, domestic public companies file annual reports on Form 10-K, quarterly reports on Form 10-Q and current reports on Form 8-K for specified events, and the 10-K gives a comprehensive overview of the business and its financial condition. To list only annual reports, search the company and enter "10-K" as the filing type.
Which AI tool to use: Perplexity, ChatGPT or Gemini
Any AI tool that searches the web and shows its sources will work. What matters is that you can click through to the original page. Here's how the three most common tools show where an answer came from, as of October 2026:
| Tool | How it shows sources | Worth knowing |
|---|---|---|
| Perplexity | Each answer includes numbered citations that link to the original sources, according to the Perplexity Help Center | Free users get a limited number of Pro Searches per day |
| ChatGPT search | Responses that use web search may include citations, and a Sources button lists cited and related links, per OpenAI's help article | Web search is available on the Free plan. OpenAI warns that search results and citations can be incomplete, outdated or incorrect |
| Gemini | When sources are available, a Sources button appears at the bottom of the response or inline and opens a side panel of links, per Gemini Apps Help | Not every response includes sources, so ask for them |
Whichever you use, treat the AI's summary as a list of leads, not a list of facts. The prompts below ask for sources and dates every time so the checking step goes quickly.
Copy-paste prompts for company research
These are example prompts we wrote. Replace the brackets, run them in a tool that searches the web, and include the company's website in the first prompt so the AI doesn't confuse it with a similarly named company.
- Overview:
I'm interviewing for [role] at [company] ([company website]). In plain language, explain what the company sells, who its customers are and how it makes money. Cite a source for each claim and give each source's publication date. - Recent news:
List the most important news about [company] from the last 12 months: launches, acquisitions, layoffs, leadership changes and partnerships. One line each, with the date and a link. Prefer the company's own newsroom. - Financials, public company:
Summarize [company]'s most recent annual report (Form 10-K) and latest quarterly results: revenue trend, business segments, stated priorities and main risk factors. Link the filing or the investor relations page for every number. - Financials, private company:
What is publicly known about [company]'s funding and growth? Use only announcements from the company or its investors, with dates. Say clearly when information is not public. - The team:
Based on this job description and [company]'s engineering, design or product blog, what is this team likely working on, and what problems might the new hire own? Separate what the sources say from your own inferences. [paste job description] - Competitors:
Who are [company]'s three closest competitors for [product], and how does [company] describe what makes it different? Use the company's own positioning where possible, with links. - Your interviewer:
Summarize the public professional work of [name], [title] at [company]: talks, articles, papers or open-source projects. Professional information only, with links. - Culture:
What values or working principles does [company] publish on its careers page? Quote them with a link, then suggest which of my stories fits each one: [list your stories in one line each].
How to check what the AI tells you
Checking takes a few minutes and keeps you from repeating a wrong fact to someone who knows the right one.
- Open every citation. Make sure the page actually says what the summary claims. Summaries sometimes blend two sources into one statement.
- Check the date. Note when each source was published or updated. Anything older than a year gets a second look, because teams, products and priorities change.
- Confirm on a primary source. Use the company's website, newsroom, investor relations page or filings, not another site's summary.
- Check the name and domain. Make sure every source is about the right company, not one with a similar name, product or ticker.
- Never repeat a number you haven't seen on a primary source. Revenue, headcount and customer counts are the facts most likely to be wrong or out of date in an AI summary.
- Drop what you can't confirm. If a fact has no reliable source, leave it out or turn it into a question.
Turn your research into 3 questions to ask
Research pays off when it shapes your questions. Use a simple pattern: a fact you confirmed, what it might mean for the role, and an open question. Here are three examples we wrote; replace the details with your own research.
- Product: "You launched [product] in [month]. How has that changed what this team works on day to day?"
- Strategy: "Your latest annual report lists [priority] as a focus. How does this role contribute to it?"
- Team: "The job description mentions [system or process]. What's the hardest open problem there right now?"
To generate more, give the AI only your confirmed notes: Here are my verified research notes on [company] and the job description. Suggest five questions I could ask the [hiring manager, engineer or recruiter]. Each must reference one fact from my notes. Don't suggest anything the company's website already answers. Pick the best three. For ready-made lists, see our questions to ask a hiring manager, questions to ask the interviewer and questions to ask at a startup interview.
Your research also feeds your answer to "Why do you want to work here?" Use one or two confirmed facts, connect them to your own experience, and keep it under a minute.
A 30-minute company research plan
| Minutes | Task | What you should have |
|---|---|---|
| 0–5 | Run the overview prompt with the company's website included | A three-sentence summary of what the company does and for whom |
| 5–12 | Run the news prompt and open the top sources | Three dated news items, each confirmed on the company's newsroom |
| 12–18 | Check financials: 10-K, 10-Q or the investor relations page for public companies; funding announcements for private ones | Two or three facts about growth and priorities |
| 18–24 | Run the team and interviewer prompts, then reread the job description | Two problems the team is likely working on and one point of common ground |
| 24–30 | Run the question prompt and draft your "Why this company?" answer | Three questions to ask and a short answer you can say out loud |
Then say it out loud. A research-backed answer that you've never spoken tends to come out as a list of facts. In CoPilot Interview's Mock Interview mode, you add your résumé and the job description, and it asks questions drawn from both, scores each spoken answer out of 10 with what to fix and a model answer, and ends with a report card. Our walkthrough of a mock interview from a job description shows the setup, and our AI interview prep checklist places this research inside a full week of preparation.
Mistakes to avoid
- Reciting facts. Interviewers care less about what you found than about why it matters for the role. One relevant fact beats five memorized ones.
- Trusting a confident number. If you can't point to the filing or the company page it came from, don't say it.
- Using stale news. Mentioning a product that was discontinued or a leader who has left suggests your research is out of date.
- Getting personal. Look at your interviewers' professional work only. Skip personal social media and personal details.
- Over-researching early rounds. Thirty minutes covers a recruiter call or first round. Save deeper research on the team and its products for a final round.
Practice your "Why this company?" answer out loud
CoPilot Interview's Mock Interview mode asks questions drawn from your résumé and the job description, scores each spoken answer out of 10 and shows what to fix. The free plan includes 15 minutes every day, with no signup.
Try a free AI mock interviewFAQ
How long should I spend researching a company before an interview?
About 30 minutes is enough for a recruiter call or first-round interview: what the company sells, recent news, its financial position, the team and three questions to ask. For a final round, spend more time on the team, its products and your interviewers’ public work.
Can I trust ChatGPT or Perplexity for company research?
Use them to find and summarize sources, not as the final word. OpenAI's own help article says search results and citations can be incomplete, outdated or incorrect. Open each cited source, check its date and confirm important facts on the company's own pages or filings.
What should I know about a company before an interview?
What it sells and to whom, important news from the last year, whether it is growing, what the team you would join works on, and the values it publishes. You should be able to explain in two or three sentences why you want to work there.
How do I research a private company?
Most private companies don't publish financial reports like a 10-K, so rely on the company's website, newsroom, blog and funding announcements from the company or its investors. If something isn't public, don't guess; ask about it in the interview instead.
Is it OK to research my interviewers?
Yes, as long as you stick to their professional work: their role, talks, articles, papers or projects. A talk they gave can lead to a good question. Avoid personal social media and personal details.
How do I use company research in my answers?
Use it in your answer to “Why do you want to work here?”, to choose behavioral stories that match the company's published values, and to ask informed questions at the end. One or two well-placed facts beat a long recital.