For vendors
Win work. Pay nothing.
Join free. Bid fairly. Get discovered—and paid—without network fees or email black holes.
Vendor flow
How selling works—step by step
From free signup to invoice—watch the path. Simple and fair.
Step 1 of 5
Join free
Create your profile once. Upload docs. Stay ready.
Vendor profile
- StatusVerified
- DocsTax + certificates
- CostFree forever
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Why vendors choose KSource
0% fees
To participate
One for all buyers
Your profile
Sealed & fair
Bidding
Network effect
Join once and become visible to enterprise buyers actively sourcing—growth without marketing spend.
Build once, bid everywhere
Upload certifications and compliance docs once. Your verified profile travels with every new buyer invite.
End of the black hole
Real-time dashboard for RFQ deadlines, negotiation rounds, and invoice status—plus an AP Query Board to dispute and resolve payment blocks directly in-portal. No more ‘Did you get my invoice?’ emails.
Level playing field
Comparative statements and centralized scorecards force evaluation on price, specs, and compliance—not just relationships.
Ironclad IP protection
Proposals and attachments lock with Customer-Managed Encryption Keys (CMEK) until official bid opening.
Keep what you bid
No invoice cut. No supplier subscription. Zero network fees.
Ready to bid with zero fees?
Join the marketplace free—or talk to us if you want a quick walkthrough.