B2B vs B2C: How Selling to Firms Differs From Selling to People

B2B means selling to other businesses; B2C means selling to people. The one difference that generates every other is how many customers there are and how large each one is. A seller with a few dozen buyers and a seller with fifty thousand answer identical questions in opposite directions. Neither kind is the better business.

Where does this comparison come from?

Anjani Stationers Private Limited, an invented stationery manufacturer, sells to other businesses. Setu Bazaar, an invented marketplace, is where people buy from the sellers on it. Every figure below belongs to one of them.

Finding revenue and margin on a set of statements is assumed here, so neither is explained. The shape of a marketplace, set out in full under Platform Businesses, and the test of whether one customer pays for itself, set out under Unit Economics, are assumed in the same way. Anjani and Setu are taken as given and set against each other, difference by difference.

What is the one difference that makes all the others?

Consider a household. A house that runs on one salary and a house that runs on four part-time earnings can bring in the same money in a year. The two houses do not feel the same. In the first house one conversation with one employer settles everything, and one bad month settles everything too. In the second house no single conversation matters much, and no single bad month does either, but there is nobody to have the conversation with when all four incomes soften at once.

The difference between those two houses is the entire comparison, and everything else follows from it. Every other difference between selling to businesses and selling to people follows from how many customers there are and how large each one is. Not from the product, not from the price, not from the channel. Count and size.

Anjani Stationers brought in Rs 2,70,00,000/- in the year. Anjani reached that through a few dozen business buyers. Taking thirty six as an illustration of what a few dozen means, the average buyer is worth Rs 7,50,000/- a year. Setu Bazaar brought in Rs 20,00,00,000/- of revenue. Setu reached that through fifty thousand people, each bringing Rs 4,000/-. The two per-customer figures set side by side are Rs 7,50,000/- against Rs 4,000/-. The ratio between them is a hundred and eighty seven and a half to one, and that ratio is the fact from which the rest unrolls.

Who actually makes the decision on each side?

When a business buys something, three things are true that are not true when a person buys something. There is a budget the spend has to sit inside. There is a procurementThe set of steps a business goes through to buy something: identifying the need, asking suppliers for offers, comparing them, and placing the order. process with steps somebody wrote down. And there is a named person who will be asked afterwards why this supplier and not another one.

A business buyer must justify the purchase to someone else and a person need not. That single asymmetry produces most of what people notice about selling to businesses. Justification is why the sale takes so long: the elapsed time is not the seller persuading the buyer, it is the buyer persuading the buyer's own organisation. The same requirement is why the seller has to supply things a consumer would never ask for, such as a specification sheet, a sample, a quotation valid for a stated period, and references. The same requirement is why the order arrives as a purchase orderA document a buying business issues to a supplier stating exactly what it is buying, at what price and on what terms. The supplier delivers against it and invoices against it. rather than as a payment. And it is why larger business purchases are often run as a tenderA formal request a buyer publishes inviting suppliers to submit sealed offers, usually with the rules for choosing between them written down in advance., where the rules for choosing are fixed before any offer is opened.

The person buying on Setu Bazaar has none of that. There is no budget line, no process, and nobody who will ask them to explain the purchase. The buyer sees a price, decides, and pays. The whole transaction can be shorter than the time it takes an Anjani buyer to find the right form.

One more consequence sits at the end of the business sale and has no consumer equivalent. Business purchases are usually made on credit termsThe agreed period between a supplier delivering and the buyer paying, and any discount for paying earlier., so Anjani delivers, then invoices, then waits. The Setu buyer pays at the moment of buying. So the business seller finances its buyer for a stretch of every sale and the consumer seller does not. The two sellers need different amounts of cash to run the same revenue.

What does concentration do to a business at once?

Concentration does two things at once, and most people have met only one of them.

Anjani Stationers has thirty six buyers. Suppose, as an illustration rather than a figure carried in from anywhere, that its largest single buyer accounts for 18.00 per cent of the year. The largest buyer's share is Rs 48,60,000/- of the Rs 2,70,00,000/-, with the other thirty five buyers making up the remaining Rs 2,21,40,000/-. If that buyer goes, 18.00 per cent of the year's revenue goes with it in one movement. There is no gradual version. Set against the rest of the accounts, the revenue that would leave is larger than the whole year's operating profit of Rs 41,50,000/-. How much profit would leave with it is a different question. Answering it needs a split of Anjani's costs into the part that disappears when the buyer disappears and the part that does not, and that split has not been given.

Fragility is the half everybody knows. Here is the other half. Because there are only thirty six of them, Anjani can name every single buyer. Anjani knows who signs, what they order, when they reorder and what they paid last year. When it wants a longer contract, a price change, a bigger volume or earlier payment, there is a person to call and a meeting to have. When the largest buyer starts drifting, Anjani can usually see it in the order pattern months before it becomes a decision, and it can go and ask. Anjani can build a switching costEverything a buyer would have to spend, redo or relearn in order to move to a different supplier, whether or not that appears on any invoice. into the relationship deliberately, by holding stock for that buyer or by matching its specification exactly.

The same property that makes a concentrated business fragile is the property that makes it negotiable. Not a trade-off between two different features. One feature, seen from two sides. Anyone who has learned only the fragility half has learned one side of one fact, and will systematically misread every concentrated business they meet.

Why is a diffuse customer base not simply safer?

Turn the same reasoning around and run it on Setu Bazaar.

Setu has fifty thousand buyers, each bringing Rs 4,000/- of revenue. Every Setu buyer is the same size, so the largest buyer is also the average buyer. The arithmetic comes out unusually clean. If Setu's largest single buyer walks away, Rs 4,000/- of Rs 20,00,00,000/- goes. The departure is one buyer in fifty thousand, or 0.002 per cent of the year. Set against Anjani's 18.00 per cent, that is a ratio of nine thousand to one for the same event. Nobody at Setu would notice. Nobody would be told. There is no meeting.

Now ask the second question, the one the fragility half never prompts. When Setu wants to change something about how its buyers behave, who does it talk to? The answer is nobody. There is no counterparty. Setu can change a price on a screen and watch what happens, but it cannot negotiate. Negotiation needs a party on the other side of the table, and Setu's other side has fifty thousand seats and no names worth calling. Every buyer is free to stop at any moment for reasons Setu will never learn.

And that is where the real exposure sits. Setu is not exposed to any one buyer. Setu is exposed instead to aggregate demandThe total amount of buying happening across a whole set of customers at once, rather than the buying done by any one of them., the crowd moving together. A tightening in household spending, a competing marketplace, a change in what people are willing to pay a delivery charge for: any of these moves thousands of buyers in the same direction in the same quarter, and none of them can be addressed by picking up a telephone. A diffuse customer base is not safe, it is differently exposed. The exposure has simply moved from one identifiable relationship into a crowd nobody can call.

How do the two cases compare, number by number?

Every component of the comparison is published below, so any line of it can be reworked. The counts and the largest-buyer share for Anjani are illustrations. Everything else is quoted from where each business was built.

Work the last line yourself in both directions. Rs 48,60,000/- divided by Rs 2,70,00,000/- is 0.18, so 18.00 per cent, and 18.00 per cent of Rs 2,70,00,000/- is Rs 48,60,000/- again. Rs 4,000/- divided by Rs 20,00,00,000/- is one fifty thousandth, or 0.002 per cent. Every Setu buyer is the same size, so that share is exactly one buyer out of fifty thousand. The same event, one customer leaving, carries nine thousand times the share of the year on one side than on the other. Not nine times. Nine thousand.

What is exactly the same in both arrangements?

The sameness matters as much as the difference, and the sameness is larger than it looks.

Both businesses have to clear the same test at the level of one customer: does one customer bring in more than the cost of serving that customer? Setu answers it with a number. Each buyer brings Rs 4,000/- of revenue and leaves Rs 2,000/- of contributionWhat is left of one sale after the costs that only exist because that sale happened. The remainder pays towards the costs that would exist anyway., a contribution margin of 50.00 per cent on the take. Anjani faces the identical question, and it stays unanswered because the cost side of Anjani's customer has not been given here.

Both then have to clear the same second test: do all the customers together cover the costs that would exist anyway? Setu's fifty thousand buyers at Rs 2,000/- each give Rs 10,00,00,000/- of contribution against fixed costsCosts that do not change with how many sales are made in a period: the rent, the engineering payroll, the insurance. of Rs 12,50,00,000/-, so Setu is losing Rs 2,50,00,000/- while every single buyer is profitable. Setu would need 62,500 buyers to break even, 25.00 per cent more than it has.

Setu's loss establishes less than it appears to. Setu's fixed costs outrun its contribution. Selling to people did not do that. Nothing in the arrangement of many small customers produces a loss. Another business with fifty thousand buyers and fixed costs of Rs 8,00,00,000/- would be making money on exactly the same customer list. The loss belongs to this one company's cost base, and reading it as evidence that selling to people is the worse business gets the finding exactly backwards.

The questions are identical and only the answers differ. The same three statements are read, in the same order, with the same tests applied. The labels therefore matter less than people assume: they describe where a business sits, not which questions it has to survive.

What does the trade feel like as the count moves?

The panel below moves the customer count while the year's revenue stays where it is. Two things hold as it moves. Holding a total fixed is exactly what forces one of the two to fall when the other rises, so the product of count and size never changes. And the cost of one departure moves from a large share of the year to a share too small to matter, without any point along the way where the arrangement becomes better or worse. The arrangement only becomes different.

Is one of the two the better kind of business?

No. The refusal is not modesty but a point about what any comparison can and cannot produce.

On a stated criterion, the two can be compared and the comparison is often decisive. Which one loses less revenue when a single customer leaves? Setu, by a factor of nine thousand. Which one has a counterparty to renegotiate terms with? Anjani, and Setu has none at all. Which one collects its money sooner? Setu collects at the moment of the sale. Anjani waits out its credit terms. Which one earns more from each customer? Anjani, Rs 7,50,000/- against Rs 4,000/-. Each of those is a real answer to a real question, and each is useful.

The unqualified question produces no answer. A comparison establishes difference and never preference. Preference needs a criterion, and the two categories supply none. B2B and B2C are descriptions of who is on the other side of the transaction. Neither description states an objective, so neither can say which is better at achieving one.

The unstated criterion is where bad reasoning hides. Ask what was measured whenever somebody claims that selling to businesses is the better model. Usually it is revenue per customer, or the ability to sign multi-year contracts. The opposite claim needs the same challenge. Usually it is the absence of any single customer who can wreck the year, or the speed of collection. Both are legitimate criteria. Neither was stated. Anyone claiming one kind is superior has smuggled in a criterion they did not state, and the first move is to ask them what it was. Once they say it, the argument usually becomes both smaller and correct.

What question separates the two faster than the labels do?

For anyone trying to establish which of these two shapes a business really has, the labels fail often. Plenty of businesses sell to both. A printing works that supplies offices during the week and walk-in customers at the weekend is neither one thing nor the other, and calling it either establishes nothing useful.

Ask one question instead, and it works on every business including the awkward ones. How much of this firm's revenue would leave with its largest customer? A single number answers it, and that number separates the two cases faster and more honestly than any label. At 18.00 per cent the business is one where one relationship carries a fifth of the year. At 0.002 per cent no relationship carries anything, and the crowd becomes the thing to watch.

A lender, an analyst and an owner-operator all use the question, and each of them uses it differently.

A borrower whose largest customer is a fifth of revenue has a repayment story that depends on one counterparty staying, so a lender asks the question before agreeing a working capital limit. The lender will often ask for that customer's name, the length of the relationship and the payment record, and will size the limit differently depending on the answers. The lender will also ask the reverse question on a diffuse borrower: not who the largest customer is, but how sensitive the whole customer base has been to past downturns.

An analyst reading a set of published accounts asks it because reporting standards require a company to disclose reliance on major customers where that reliance passes a stated level, so the answer is frequently sitting in the notes rather than needing to be estimated. The disclosure is the fastest single read on which of the two shapes a company actually has, and more reliable than any description of the business in the front half of the report.

An owner-operator asks it about their own business, and the honest version of the question has a second half: if that customer left tomorrow, how many months would it take to replace the revenue, and could the business pay its fixed costs meanwhile? A household running on one salary asks exactly this question when it decides how many months of expenses to keep aside. The arithmetic is the same and only the scale differs.

Where are the rules behind these two arrangements actually written?

In India the line between a business buyer and a person buying is drawn by a handful of public documents, listed below. Each sets its own periods, rates and thresholds, and each of those moves by notification rather than staying where a summary last found it.