Demand generation makes the right people aware of you and interested in what you do before they start shopping. Lead generation finds specific people who fit your market and starts a conversation with them that can end in a sales call. The first builds interest across a whole market. The second puts names, replies and meetings on your desk.
For a founder-led B2B company with one budget and a thin pipeline, buy lead generation first. For most B2B offers that means outbound: cold email and LinkedIn outreach to decision-makers you picked on purpose. Demand generation earns its place next, as the thing that makes those conversations easier to win.
One condition sits above both. If the offer is vague, neither motion will fix it, so check the offer before you pay anyone.
How do demand generation and lead generation differ?
Demand generation works on people who are not buying yet. Think content, webinars, podcasts, social posts, a founder who publishes regularly, paid campaigns that teach rather than ask. Most of it is ungated, so nobody fills in a form. It succeeds when more of the right people know your name and think of you once the problem gets urgent.
Lead generation works on named people. It turns a market into a list and gets some of those people to respond: an inbound demo request, a gated download, or an outbound message that earns a reply. It succeeds when you are in conversations with people who fit, and some of those conversations become sales calls.
Both exist because most of your market is not shopping on any given day.
Professor John Dawes of the Ehrenberg-Bass Institute, in research for LinkedIn's B2B Institute, points out that companies switch providers of services like software or legal advice about once every five years. That leaves roughly 20% of a market buying in a given year and about 5% in a given quarter.
Demand generation is built for the other 95%. Les Binet and Peter Field, in their B2B report for LinkedIn's B2B Institute, use the psychologists' term for what it creates: mental availability, meaning your company is the name a buyer thinks of first when the need finally shows up.
Buyers also do most of the work before they call anyone. 6sense, which sells software for exactly this kind of marketing, surveyed 2,509 recent B2B buyers for its 2024 Buyer Experience Report. About 69% of the purchase process happened before buyers engaged a seller, and 81% had picked a favorite vendor before speaking with sales.
Read that as a vendor making its own case. Even so, the direction makes sense. If you wait for buyers to arrive, you mostly meet people who already chose. Outbound is one of the few ways to be in the conversation before the shortlist exists.
| Demand generation | Lead generation | |
|---|---|---|
| Funnel stage | Top: people who are not shopping yet | Middle and bottom: people who fit and can be asked for a conversation |
| Who it talks to | The whole market | Named people who fit your ideal customer profile |
| Gated or not | Mostly free to read, watch and share | Asks for something: a reply, a form, a meeting |
| Typical tactics | Content, webinars, podcasts, social posts, brand campaigns | Outbound email and LinkedIn, gated offers, demo request forms |
| What it needs from you | Opinions, expertise and proof worth publishing, week after week | A defined ICP, one clear offer and time on sales calls |
| What it produces | Awareness, trust, inbound interest over time | Replies, conversations, booked sales calls |
| First signal | Months, often quarters | Weeks after the first messages go out |
| What goes wrong | A growing audience that never turns into calls | Calls with people who have no reason to pick you |
Which agency sells which?
Agency websites mix these words freely, so read the service list and the case studies, not the headline. This is what usually sits behind each label.
| If the agency calls itself | It usually sells | What reaches your desk | Search for it as |
|---|---|---|---|
| Demand generation agency | Content, paid social, webinars, account-based programs | Reach, engagement, inbound interest, "pipeline influenced" reports | B2B demand generation agency, B2B content agency |
| Outbound lead generation agency | Target lists, cold email, LinkedIn outreach, reply handling | Replies, conversations, booked calls | outbound agency, cold email agency |
| Appointment setting agency | Outreach focused on getting a meeting booked | Meetings on your calendar | appointment setting agency |
| Marketing agency offering "lead gen" | Ads, landing pages and forms | Form fills you still have to qualify | check what its case studies count |
Where we sit: Smirnov Consulting Group is a Prague-based B2B outbound lead generation agency that runs cold email and LinkedIn campaigns for founder-led B2B companies and books qualified sales calls. That is the second row.
If you are choosing between the second and third rows, I compared them in lead generation or appointment setting.
Is outbound demand generation or lead generation?
Outbound is lead generation. It picks the person before it says a word, and it is judged on replies and booked calls.
Content sits on the other side of that line, and I am blunt about its role for most B2B companies: "Content isn't demand gen, it's a supporting mechanism for outbound." I explained what that means for a founder's own posting in five honest answers about LinkedIn content.
There is a twist, though. Run the 95-5 math on your own campaign and most people you contact are out of the market this quarter. A good-fit buyer who replies "not right now" has still learned your name, what you do and that you were polite about it. That is demand, created one person at a time.
So outbound does some demand generation as a side effect, but only if you treat those replies properly. Log every "not now" with a date and a reason, and come back when the date arrives. Campaigns that file them as dead leads throw away the part of outbound that compounds.
What should a founder-led company buy first?
The standard advice is to balance both. That fits a marketing department with two teams and two budgets. With one budget line, splitting it in half usually buys two programs too thin to tell you anything. I would rather see one motion done properly.
The right first purchase depends on two things: where the company is today, and how your customers buy.
Decide by where the company is
| Where you are | Buy first | What the first 90 days should show you |
|---|---|---|
| Nobody has paid for this exact offer yet | Neither. Sell it yourself, to people you can reach directly | A first paying client and the exact words they used to say yes |
| The offer sells through your network and referrals, but the calendar has fewer calls than you need | Lead generation, usually outbound | A defined list, messages going out, replies, the first booked calls, and which segment and message get answers |
| Outbound or referrals book calls reliably, but prospects arrive knowing little about you | Add demand generation close to the sale | Case studies and posts that answer what calls keep raising, and prospects mentioning them |
| Referrals or inbound already fill the calendar, cycles are long, buyers research for months | Demand generation on top of what works | Proof published where buyers look, prospects mentioning it on calls; revenue impact comes later |
| You cannot explain in a single sentence who you serve and what you fix | Neither yet | Fix the offer first: one audience, one problem, one proof point |
Lead generation goes first for a simple reason: you can count it. Replies and calls tell you within weeks whether the market wants the offer as you describe it. The questions prospects ask on those calls are also the best raw material for any demand generation you add later.
Decide by how your customers buy
Company stage is half the answer. The other half is the shape of the sale.
- A few large accounts, long cycles, a group decides: run outbound to named people at a named account list, and aim your demand generation at those same accounts. The person you book has to convince colleagues you never meet. If the 6sense finding holds, they form their favorite from whatever they find about you.
- Mid-size deals, one or two decision-makers, a call needed to close: lead generation first, and it will carry most of the load for a long time. Demand generation here is mostly proof a buyer can check before the call.
- Small deals bought without a sales call: an outbound agency is usually the wrong purchase. If a customer is worth less than the time and money it takes to book and run a call, that product grows through search, content and a sign-up page.
- A small, known market with a few hundred possible buyers: contact every one of them with outbound and publish for the same few hundred people. In a market that small, both motions hit the same names, and the line between them blurs.
- A large market where companies rarely switch providers: lead generation now, to catch the few in market this quarter, and demand generation in the background, so the rest remember you when their contract comes up.
If your real question is about channels rather than vendors, I wrote up whether inbound or outbound should come first separately.
Signs it is time to run both
Starting with one motion does not mean staying there. Beyond prospects who arrive knowing nothing about you, three signs say it is time to add demand generation next to outbound:
- The "not now" log holds a growing list of dates in the next two quarters
- The same objections come up on call after call, and your answer exists only in your head
- Referrals have slowed, and a stranger checking you out finds nothing that shows your work
How should one budget be split between the two?
A useful reference point comes from that same Binet and Field report, The 5 Principles of Growth in B2B Marketing. Working from B2B campaigns in the IPA Databank between 1998 and 2018, their data suggested efficiency peaks at around 46% of the budget on brand building and 54% on activation, the part that turns existing interest into sales.
The authors warn against following that split too precisely, because their sample only allows a rough estimate. Their B2B sample was under 50 cases, all entered for effectiveness awards, skewed toward the UK and toward relatively big budgets. The same report says long-term brand effects only start to outweigh short-term sales effects after six months.
For a founder with one budget line, I take three things from it:
- Even for big advertisers, the side that converts interest into sales gets the larger share. Starting with lead generation is not anti-marketing.
- Demand generation needs at least two quarters before you judge it. If you cannot fund it for six months without panicking in month two, do not start it yet.
- Your first demand generation can be founder time: turning the questions from last week's sales calls into posts and case studies. A second agency can wait until that habit exists.
Which one is actually broken?
Before you buy anything new, read what your current numbers are telling you. The symptom usually points to the fix.
| What you see | What it usually means | What to change first |
|---|---|---|
| Few replies from a list that fits your ICP | The message or the offer, rarely a lack of awareness | Rewrite the offer and the first lines before buying demand generation |
| Plenty of replies, mostly "not now" | Timing, exactly what the 95-5 math predicts | Log dates and reasons, come back when they are due, keep publishing so you are remembered |
| Positive replies, few booked calls | The first ask is too big | Offer a smaller first step |
| Calls held, but prospects know nothing about you and ask for proof | Missing demand generation close to the sale | One case study with a result and a date range, and a profile that says who you help |
| Deals stall once your contact takes it to colleagues | The rest of the buying group never heard of you | Give your contact something to forward: a one-page case study or a short video |
| Inbound arrives but rarely fits | Demand generation aimed at the wrong people | Narrow who the content is written for |
| People say "I see your posts" but nobody books | Interest exists and nobody asks | Add lead generation: a direct ask to people who already know you |
Why can lead generation alone still fail?
Lead generation alone won't save your business, and demand generation won't either. Both carry your offer to more people. Neither one improves it.
Often the real problem sits further up. You might not have a lead gen problem at all; you might have a packaging problem. Packaging is how the offer reads to a stranger: who it is for, the result it promises, the proof behind it and the first small step you ask for.
Once it is right, the same volume and the same effort start producing very different results. The post on picking one offer for one audience walks through what shifts once the packaging lands.
Run this check before you sign with either kind of agency:
- Could a stranger repeat what you sell after reading your LinkedIn headline and the first line of your website?
- Do you have a case study that shows a real result, with a number and a date range?
- Are you selling one clear offer, or a list of services to pick from?
- Is your first ask small enough that a busy decision-maker can say yes in one reply?
If two or more answers are no, a demand gen agency will spread a vague message wider, and a lead gen agency will deliver it to more inboxes.
If the answers are mostly yes and you are ready to hire, start with eight questions worth asking a lead gen agency before you sign.
How do demand gen and lead gen work together?
Once lead generation books calls reliably, demand generation stops being a separate program and becomes support for the sales conversation. My shortest version: "Marketing is what makes selling easier." Strong marketing means easy conversations and easy sales. Weak marketing means objections, resistance and a slow pipeline.
There is survey data on how content moves buyers before anyone sells to them. In LinkedIn's February 2024 summary of the B2B report it ran with Edelman, 75% of decision-makers and C-suite executives said one piece of expert content had sent them to look into something that was not on their list before.
In the same summary, 70% of C-suite leaders said content had at least occasionally made them question whether to stay with an existing supplier.
LinkedIn sells the ads this kind of content runs on, and people describe their own behavior generously in surveys, so treat the numbers as a direction. Still, that second figure is how a "not now" turns into a "now": the prospect starts doubting the provider they already have.
For a founder-led company, the demand generation that helps outbound most is close to the sale. A profile that explains the offer. Case studies with numbers. A short video of you walking through how you work. Posts that answer the objections you keep hearing on calls.
The loop runs both ways, and it can run every week:
- After each call, write down the questions and objections in the prospect's own words
- Once a week, answer the one that came up most in public, as a post, a short video or a section of a case study
- Put the best answers where a prospect lands after your first message: your LinkedIn headline, your featured section, the case study page on your site
- On every call, ask what the prospect looked at before the meeting, and keep a tally
- Once a month, go through the "not now" log and write again to everyone whose date has arrived
If you buy the two from different agencies, give both the same ICP and the same account list, and ask the demand generation side to aim at the accounts your outbound team is contacting. Then judge it by one question asked on every call: had they heard of you before the first message?
Quick answers on demand gen and lead gen
Is a demand generation agency the same as a marketing agency?
Mostly, yes. A demand generation agency is a marketing agency focused on building interest among future buyers through content, social, events and brand campaigns. It rarely starts one-to-one conversations with named decision-makers. If you want conversations and booked calls, look for an outbound lead generation or appointment setting agency instead.
Is account-based marketing demand gen or lead gen?
Account-based marketing is a way of choosing who to target, a named list of accounts, and it can run either motion. Ads and content shown to those accounts are demand generation. Outreach to named people at those accounts is lead generation. If you run it, point both motions at the same list.
How do I measure demand generation and lead generation?
Measure lead generation by replies, positive replies, booked calls, calls held and deals from those calls. Measure demand generation by how many prospects already knew you before the first call, inbound requests and people searching your name. Ask every prospect on a call what they checked before the meeting.
Does a founder-led company need both demand gen and lead gen?
Eventually, yes. With one budget and a thin pipeline, start with lead generation, because it produces conversations you can count and learn from. Add demand generation once calls come in reliably, and aim it at the questions and objections those calls reveal.
How fast does each one show results?
Lead generation gives a first signal within weeks of the first messages going out: replies, then booked calls. Demand generation works over quarters, because it targets people who are not shopping yet. Judge each on its own clock, and never cancel demand generation after one quiet month.