Knowledge · B2B Sales

Lead Generation (Lead Gen)

Lead Generation

📂B2B Sales⏱2-min read📊Beginner🔗6 related

What is lead generation?

In one line
Activities that capture prospects’ interest and contact details (leads). The first stage of the sales pipeline, and its fuel.
Turn this topic into in-house training📚 Related Course💬 Ask about training
⚡ Summary in 3 lines
  • Capturing prospects’ interest and contact details
  • The first stage of the pipeline, and its fuel
  • Fit with your ICP matters more than volume

Building lead gen into a system changes where sales starts. Until then, individual reps’ personal networks and business-card holders were the pipeline, but once you start recording lead sources, that list stays behind as a company asset. Who came in through which channel and how many moved to the next stage shows up in numbers, so you can answer 'why did we miss this quarter?' with top-of-funnel data rather than gut feel. That is also why the pipeline doesn't vanish when a top performer leaves.

In practice, leads are handled by grade. Someone who only downloaded a resource is an MQL, which marketing keeps nurturing; once budget, timing, and decision authority are confirmed, it becomes an SQL, which sales takes over. Count a white paper download and a 'please send me a quote' phone call as the same kind of lead, and the front line breaks down fast. Inbound takes six months or more to build but costs less per lead; outbound can run this very week but gets lower reply rates. The key is not judging the two by the same yardstick. And unlike demand gen, which creates demand itself, lead gen covers the stage of turning interest that already exists into contact details.

Deal size determines channel choice. For a public course at KRW 200,000 (≈ US$150) per person, widening reach with search ads and webinars makes sense; for an in-house training program worth KRW 50 million (≈ US$37,400) per deal, it is better to pick 30–50 target companies and work executive letters and referrals. You need the habit of putting cost per lead next to contract value when choosing channels. A lead magnet should also be something like an industry-specific diagnostic checklist, which only people seriously considering a purchase would ask for, so there is less filtering to do.

Trouble usually starts the moment KPIs are set on 'number of leads' alone. Even if a prize giveaway fills 500 leads a month, when half the list is students, competitors, and former employees, sales stops trusting the CRM list within two weeks and goes back to the old notebook. The cycle breaks only when incentives shift to consultations converted, not leads counted. One more warning: buying a list and blasting it out is risky without consent to data collection and marketing messages — contacts with no consent record are not results; sooner or later they come back as a bill.

Training that covers this term · Negotiation & Sales
Recommended courses · Recommended instructors · Quick quote
🧮 Mini quote · Based on instructor fees
About KRW 1.2 million (≈ US$900)2-hour talk · up to 20 people · Korean
Get a quote for these requirements →
💡 In plain English
Think of fishing: it’s the first step of getting a fish onto the line. Without leads, there’s no one to sell to.
Why it matters in practice
The pipeline starts with leads. Without steady lead gen, there is no sustainable revenue.
Origin and sources

Traditional sales 'prospecting' merged with digital marketing and was systematized into the field we now call lead generation.

An example

Let’s look at a hypothetical case. Company A is a job-training content company with 38 employees and KRW 5.2 billion (≈ US$3,890,500) in annual revenue. Its six salespeople were so focused on re-winning existing accounts that new business had fallen to 8% of revenue, and new leads came to just 12 a month, with only 3 converting to consultations. The CEO asked, 'We exhibit at trade shows every year, so why are contracts flat?'

  1. When the marketing lead pulled six months of CRM data, 97 of the 143 new leads were business cards collected at trade shows, and only 4 had led to an actual consultation. The lead summed it up: 'Scanned business cards were never leads.'
  2. Together with the head of sales, we traced back the 27 deals won over the past two years. Of those, 21 were manufacturers with 300–1,000 employees and a dedicated safety or job-training manager. We pinned these conditions down as a one-line ICP and decided to send everyone else only the newsletter.
  3. We swapped the downloadable asset from a company brochure to a '40-Question Serious Accident Response Training Checklist,' and the landing page asked for only two fields: job role and number of employees. In the first month, downloads reached 61.
  4. Leads from manufacturers with 300+ employees and a training-manager role were automatically assigned to sales within 24 hours; the rest went into an email sequence. One sales manager said, 'When I call, I know what material they viewed, so my opening line is completely different.'
  5. Four months later, monthly SQLs rose from 12 to 31, the consultation conversion rate climbed from 3.4% to 11%, and quarterly new contracts went from 2 to 7. The share of new revenue rose from 8% to 23%.
Related terms
Learning paths that include this term
Training linked to this term
📚Finding New B2B BuyersNanum Consulting corporate training · In-person/OnlineView course →
Need in-house training on this topic?
Get a curriculum and quote tailored to your needs right away.
Ask About Training
Last updated 13 Sep 2026 · Reviewed by John Kim

FAQ

Both matter, but quality that fits your ICP comes first. Poor leads waste sales resources.
Inbound draws customers to you; outbound means reaching out first. Use them together.
Combine content, search, and seminars (inbound) with cold outreach (outbound).
Tighten your ICP criteria and raise the value of your lead magnet to filter for genuinely interested prospects.