SellerUpSellerUp
Marketplace agency. Allegro · Amazon · AI

We rank sellers on top of Allegro and automate the routine with AI

More sales without manual spreadsheets, late nights, or guesswork. Strategy, launch, analytics and AI automation — under one KPI.

€12M+client GMV on marketplaces
50+sellers launched from scratch
4.8xavg. ROAS on Allegro Ads
Pain points

Sound familiar?

Here's what we hear from sellers every week.

01

Sales dropped — and nobody knows why

A month ago your revenue was 2x higher, now it's quiet. The marketplace dashboard shows charts, but no clear diagnosis.

02

Ads are eating your margin

CPCs go up, ROAS goes down. Raising the budget is scary, cutting it is scarier.

03

You're drowning in Excel

Analytics get assembled by hand — 6+ hours a week. Formula errors hide for weeks and decisions arrive late.

04

No system — just chaos

CRM, warehouse, marketplace and accounting all live in separate tabs. Numbers don't match, and there's no single source of truth.

Process

How we work

No month-long ramp-up. First results by week two.

  1. 01

    48-hour diagnosis

    We look at your accounts, revenue, competitors. Show what we fix first and where the quick wins are.

  2. 02

    KPI-driven roadmap

    A 30/60/90-day plan with metrics, budget and ownership. You know exactly what you're paying for.

  3. 03

    Launch and optimization

    Team: strategist, analyst, PPC manager, content editor. Weekly report + call. No "we'll get back to you."

  4. 04

    Scale

    Once baseline metrics are stable, we add SKUs, markets, automation. We exit your operations and leave the growth.

Case studies

Case studies

Public metrics coming soon. Private cases — we'll show them on a call under NDA.

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Why us

Why Sellerup

We're sellers, not "theory consultants"

We've launched SKUs on Allegro and Amazon, we've lost thousands of euros on our own tests. You're buying experience, not a pitch deck.

Data, not gut feelings

We build dashboards in Looker/Metabase, connect marketplace APIs. Decisions come from numbers, not "I think".

One team — the whole stack

Strategy, content, ads, analytics, AI automation. You don't hire a copywriter, a PPC specialist and a dev separately.

KPI or money back

Metrics go into the contract. If we miss — we fix at our own cost. No "circumstances changed".

Contact

Send a request — we'll reply in 48 hours

5 short questions so we get the context and don't send you a generic proposal.

How do you currently sell? *
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