What corporate vendor onboarding actually looks like (a consultant's field notes)

Last week, I started getting onboarded as a vendor by a large agribusiness group. Within 48 hours of the first conversation, I was looped into emails with Enterprise Applications Managers, Innovation Specialists, and IT operations teams across two countries.

This is what that process actually looks like from the outside.

The difference between a freelancer engagement and a corporate vendor relationship

When you work with a startup or a small agency, the engagement is usually informal. Someone has a problem, you talk about it, you agree on a scope, you invoice and get paid. The relationship is between you and one person.

Corporate vendor relationships are different. You’re not engaging with a person — you’re engaging with a procurement process. The person who found you and wants to work with you is usually not the person who controls the budget, signs the contract, or approves your invoices. They’re your internal champion. Your job is to make their job easy.

This distinction changes how you approach everything from the first conversation.

What to have ready

By the time you get a call from a large enterprise, you should have these documents ready to send within a few hours:

Business documentation. Depending on jurisdiction: GST registration certificate, PAN card, company registration documents, bank account details on official letterhead. In India, this is non-negotiable — procurement teams need it before they can create a vendor record. Have a PDF package ready.

A short company profile. One page. What you do, where you’re registered, how long you’ve been operating. Enterprise procurement teams see hundreds of vendors. Make this easy to file.

References. At least two, from companies the prospect can verify exist. These don’t have to be on-demand calls — an email from a past client confirming the engagement is often sufficient for smaller contracts.

Your standard NDA. You should have one. Don’t wait for theirs. Sending your own first sets a tone — it signals you’ve done this before. Most enterprise NDAs are mutual and broadly reasonable; the things to watch for are excessive IP assignment clauses and non-solicitation terms that would prevent you from working in adjacent markets.

How commercials actually work

Independent consultants often undercharge in corporate engagements because they anchor to agency day rates or freelance platform pricing. The comparison isn’t correct.

An enterprise is not hiring you instead of a freelancer. They’re hiring you instead of a consulting firm. Price accordingly. A senior consultant billing directly saves the enterprise the consulting firm’s markup (typically 40–80% on top of what the actual practitioner earns). That value should be shared.

Set a day rate, not an hourly rate. Enterprises think in days. Be clear about what a “day” means — I define it as 6 billable hours, with communication and coordination included, not counted separately.

Invoice at the end of each month or milestone, whichever comes first. Net-30 is standard for enterprise; some push to net-45 or net-60. Know your floor before you negotiate.

Direct billing matters

Always bill directly, not through an intermediary if you can avoid it. When you bill through an agency or a third party, you lose visibility into the client relationship, your rate is squeezed by their margin, and you can end up in a situation where your contract is with the agency, not the client — which is a problem if the agency relationship ends.

If the enterprise prefers to work through a local entity for compliance reasons, there are ways to structure this without losing control of your commercial relationship. Get a lawyer to review it.

What happens next

After you pass procurement, you’ll be introduced to the technical teams. This is where the actual work starts. But the vendor onboarding phase — the paperwork, the approvals, the commercial negotiation — takes longer than most consultants expect. Budget two to four weeks. Don’t count on revenue from this client until you have a signed contract and a purchase order number.

The first engagement with a large enterprise is often slow and bureaucratic. The second engagement, once you’re a known vendor in their system, is usually much faster. That’s the payoff for doing the first one properly.