MarbleMap is Fusapp OÜ's first live vertical product — a no-commission, sealed-bid B2B marketplace for natural stone.

In many multi-category B2B marketplaces, the request flow starts with good intent but quickly becomes hard to manage. Buyers send needs through forms, emails, spreadsheets, or sales teams. Sellers receive scattered opportunities and try to decide which requests are worth their time. Marketplace operators sit in the middle, often without a clear view of what happened after the quote was sent.
This creates a familiar problem: the marketplace may generate activity, but the value is not always visible.
For sellers, especially premium members, this lack of visibility weakens the membership story. If they cannot see which RFQs they accessed, how their responses moved forward, whether they were shortlisted, or why an opportunity closed, the premium package starts to feel abstract. For buyers, the issue is different: too much noise, too little fit, and quote comparisons that are hard to evaluate.
MarketPortal helps turn this loose request flow into a vertical-specific RFQ process where each step is easier to track, compare, and explain.
Imagine a B2B marketplace serving several industrial or commercial categories. Buyers submit product or service needs through a general form. The operations team reviews the request, forwards it to a group of sellers, and waits for responses.
At first, this looks workable. But as categories grow, several gaps appear:
* Some requests are not detailed enough to quote properly. * Sellers receive opportunities that are not relevant to their capability or region. * Buyers get offers with different scopes, making comparison difficult. * The platform cannot clearly show sellers what happened after they replied. * Premium membership value is discussed mostly with assumptions, not evidence.
The most critical blind spot is after the quote. Did the seller respond on time? Was the offer viewed? Was the seller shortlisted? Did the buyer request a revision? Was the RFQ closed because of price, availability, scope mismatch, or no decision?
Without these signals, the platform loses one of its strongest levers: the ability to connect seller value to actual RFQ movement.
MarketPortal approaches the problem by structuring the request before it reaches sellers.
Instead of treating every buyer inquiry as a generic lead, the platform can shape it into a vertical-specific RFQ flow. That means each category can have the right fields, qualification rules, and comparison logic.
For example, a machinery request may need technical capacity, delivery location, warranty expectations, and installation details. A packaging materials request may require volume, material type, print requirements, delivery frequency, and compliance notes. A maintenance service request may depend on site location, response time, certification, and service window.
When the RFQ format reflects the category, three things improve:
1. Buyers submit clearer requirements. 2. Sellers understand whether the request is truly quotable. 3. The marketplace can compare responses on a more consistent basis.
This does not remove human judgment. It gives category teams a cleaner operating model.
A vertical marketplace should not simply broadcast every request to every seller. That creates fatigue and lowers trust.
With MarketPortal, the RFQ can be routed to sellers based on fit: category match, service area, capability, product scope, package level, or marketplace rules. The goal is not to maximize the number of notifications. The goal is to increase the quality of participation.
For premium sellers, this is especially important. Premium access should not be presented only as “more visibility.” It should be connected to better RFQ access, clearer participation status, and more actionable feedback.
A seller should be able to understand:
* Which RFQs were opened to them * Which ones they responded to * Whether their response was complete * Whether they entered the shortlist * What closure signal was recorded * What feedback can guide the next offer
This makes the premium package more concrete. It turns value from a sales claim into an operating record.
The Seller Premium Loop is the core commercial logic in this scenario.
It connects the seller’s premium membership to the RFQ journey in a way that both the seller and the marketplace operator can review.
A practical loop may look like this:
**RFQ access:** The seller receives access to relevant buyer requests based on marketplace rules and category fit.
**Response status:** The platform records whether the seller responded, missed the deadline, requested clarification, or submitted an incomplete offer.
**Shortlist feedback:** If the buyer narrows the list, the seller can see whether they were shortlisted or not, based on the level of feedback the marketplace chooses to expose.
**Closure signal:** When the RFQ closes, the marketplace records the reason or status: selected, not selected, cancelled, postponed, out of scope, no response, or under review.
**Membership conversation:** During renewal or account review, the platform can discuss premium value with visible participation data instead of vague statements.
This does not mean every buyer decision must be fully exposed. In B2B marketplaces, confidentiality and relationship management matter. The point is to create enough structured visibility to reduce uncertainty and improve trust.
For buyers, the experience becomes quieter and more relevant. They receive offers from sellers who are more likely to match the request, and they compare responses with a shared structure.
For sellers, premium membership becomes easier to evaluate. They can see where they participated, where they progressed, and where they lost momentum. Even when they do not win, the process gives them a clearer reason to stay active.
For the marketplace operator, the post-quote dark area becomes smaller. Category managers can see which RFQs attract responses, which seller groups are active, where buyers drop off, and which categories need better qualification.
This also strengthens renewal conversations. Instead of saying “you received visibility,” the platform can say, “these were the RFQs you accessed, these were the responses submitted, these were the shortlist signals, and these are the categories where your conversion path can improve.”
That is a more credible commercial discussion.
A B2B marketplace does not only need more leads. It needs better signals.
When RFQ access, response status, shortlist movement, and closure feedback are connected, the platform gains a clearer view of demand quality and seller engagement. Buyers get less noise. Sellers see the reason behind premium participation. Operators manage categories with more confidence.
MarketPortal is designed for this type of vertical marketplace workflow: structured RFQs, relevant seller invitation, premium value visibility, and post-quote follow-up that does not disappear after the first offer.
If you are building or improving a vertical RFQ flow, let’s talk about how MarketPortal can support your marketplace model: /iletisim