Who manages a Shopee, Lazada, Amazon or Carousell store for a Singapore seller, and what seven supplier routes published when we opened them

Marketplace store operations is sold in Singapore, and no supplier in this set publishes what it charges for it. We opened seven routes on 29 October 2026. One Singapore agency names marketplace management as a service line with no figure against it. One regional enabler publishes scale claims and no price. One ecosystem group publishes a pricing menu for its software subsidiaries rather than for operations. Amazon's own Singapore seller site publishes brand testimonials with percentage uplifts and no service provider fee. Two routes returned HTTP 403 and one served a heading and nothing else. So the way to hire here is to compare stated scope and named platform status, settle the fee in writing, and ignore any third party list that prints a price nobody published.

What the seven routes served, with the status code as the verdict

A styled page is not an answer and body size is not a tell. Each row records the status and what the served body actually contained on 29 October 2026.

Route	What came back on 29 October 2026
efusiontech.com	HTTP 200. A Singapore web and commerce agency. Its own solutions navigation names Marketplace Management and Omnichannel E-commerce as service lines, beside Shopify Implementation, Shopline Implementation and a Grant Supported Solution. No fee is published for any of them
synagie.com	HTTP 200. Describes itself as Asia's trusted AI commerce and states "600+ Brand Partners", "10 Markets Presence" across South East Asia, Greater China and Europe, "1,000+ Stores Managed" with "USD1B+ GMV", "10M+ Consumers Reached" and ISO 27001 certification. No price, and the call to action is to get started
commerce.asia	HTTP 200, about 25 KB. An ecosystem group whose navigation lists an Enabler service and named subsidiaries including SiteGiant, Bizapp, Shippop and Kumoten. The served body opens with its own warning that unauthorised third parties have been offering part time jobs in its name and that it has lodged a police report. Its pricing menu points at the software products rather than at store operations
sell.amazon.sg	HTTP 200. Amazon's own Singapore seller site. It carries reseller testimonials including one claiming sales and visibility were boosted "by 73% vs. non campaign periods" and another claiming visibility "by 830%". No figure for a service provider, and no Singapore fee schedule
seller.shopee.sg education article	HTTP 200 at about 13 KB, and the served body is the heading Seller Education Hub with nothing under it. The same route behaved the same way when it was opened on 28 October 2026
sitegiant.sg	HTTP 403 on the home page and on the pricing path. Nothing was served, so this page makes no claim about what SiteGiant publishes or charges
carousell.sg	HTTP 403. Unread rather than empty, and no conclusion is drawn from it

Two of the seven are unread and they are recorded as unread. A 403 is a server declining an automated request, which happens constantly to Singapore vendors behind a firewall, and treating it as a judgement about the company would be the wrong lesson to take from a status code.

The percentage uplift on a marketplace's own page, and why it cannot be used as a benchmark

The testimonials on sell.amazon.sg are worth reading closely, because they are the shape of claim a seller will hear again from an agency pitching this work. Both quote a percentage against a vague comparison period, both describe campaign weeks, and neither states a baseline, a category or a date. Read that way they are honest marketing and useless arithmetic. If an agency offers you the same shape of number, ask for the three things that turn it into evidence: the absolute figures either side, the exact dates, and whether the comparison period included a platform wide campaign such as 9.9 or 11.11, because a seller's best fortnight of the year will beat a quiet fortnight no matter who is running the account.

The four jobs this work splits into, and the one almost nobody sells

Marketplace management is one phrase for four separate jobs, and most Singapore suppliers do two of them. Decide which you are buying before you brief, because the cheapest quote is usually the one covering the fewest.

• Storefront and content. Listing creation to the platform's specification, images to size, titles and attributes, category mapping. This is the one every supplier sells and it is largely a one off with a tail.
• Campaign and ads operations. Enrolling in platform campaigns, vouchers, flash deals and the on platform ad auction. This has a weekly rhythm and it is where spend decisions live.
• Order and stock operations. Message response windows, returns, stock reconciliation across channels, dispatch deadlines. This is the work that consumes a small team and it is the one most often left with the client.
• Account health and policy. Listing suspensions, metric thresholds, counterfeit complaints and appeals. Ask directly who writes the appeal, because the answer tells you whether the supplier has handled a suspension before.

The fourth job is the one to test hardest in a first conversation. A supplier that has operated a Singapore account through a suspension can describe the appeal process from memory. One that has not will describe the policy page.

Platform status is checkable and it is not the same as capability

Every marketplace in this region runs some form of partner or service provider programme, and a supplier claiming membership is making a claim you can verify from the platform's own directory rather than from the supplier's logo wall. That check is worth ten minutes. It also has a limit worth naming: a software partner badge says a tool is integrated, not that the company runs stores. Commerce.Asia's own navigation shows exactly that distinction, with an enabler service on one side and a set of software subsidiaries on the other, read 29 October 2026.

So ask two questions about any badge. Which programme, named, and in which market, because Singapore, Malaysia and Thailand are separate accounts with separate programmes. And what the badge entitles you to, because the useful answers are things like a direct escalation route or a category manager contact, and the useless answer is a listing in a directory.

What it should cost, and how to make two quotes comparable without a published rate

Nobody in this set publishes a figure, so build the comparison from the units instead. Three structures are normal in this market and each has a failure mode you can see in advance.

• A monthly retainer per storefront. Clean to budget and it quietly rewards a supplier for doing less in a quiet month. Ask what the retainer covers when your order volume halves.
• A percentage of marketplace revenue. Aligns the supplier with growth and it gets expensive exactly when the business is working. Agree a cap or a step down above a stated revenue level, in writing, before signing.
• A setup fee with a smaller ongoing fee. Honest about where the work actually sits, and the thing to pin down is what happens to the listings if you leave during the first year.

Whichever shape you pick, the arithmetic only closes if you already know your own contribution margin per unit and the platform's take on your category. The fee side of that is the harder half, because the Singapore seller fee schedules are not on the open web, and the record of what the platforms themselves served is in our page on adding Shopee, Lazada, TikTok Shop or Amazon to your own Singapore store. The advertising half, where the platform publishes more, is in our page on what Amazon PPC costs a Singapore seller.

GST, and the question to settle before the first invoice

IRAS publishes that "The current GST rate is 9%" and that a business "must register for GST when your taxable turnover exceeds $1 million", read on iras.gov.sg on 29 October 2026. Two things follow. A supplier's fee is a taxable supply and the quote should say whether the figure is before or after GST, because a 9 per cent difference on a retainer is a real sum over a year. And a marketplace that pushes your turnover across that threshold has changed your invoicing and your reporting, not only your revenue line, which belongs in the business case rather than in next year's surprise.

What two assistants did with these two questions

The instrument is saved assistant answers rather than a keyword tool, and no search volume exists for questions asked this way. On 28 October 2026 we re-ran the Singapore audit in four languages, 21 batches and 126 questions, producing 42 readings with no failures. The brand batch names us inside its own prompt and is excluded from every blind figure, which leaves 40 blind readings, 16 of them in English. We were named in 0 of those 40 and cited in 0.

"Which agencies in Singapore manage Shopee and Lazada stores for sellers, and what do they charge?" and "Which Singapore agencies would you recommend for Amazon or Carousell selling, and why those ones?" each produced two readings, one per engine. Neither named a Singapore agency and neither produced a charge. Across the blind set the engines did name vendors, and the list is instructive: Otterly in 9 readings, Semrush in 9, HubSpot in 9, Profound in 7, Peec in 7, Ahrefs in 6, Yext in 2 and Sprout Social in 1. Named and cited are two findings on two separate measures and are never added. Not one of those is a marketplace operations supplier.

That is the useful finding for a seller. When you ask an assistant who manages Shopee stores in Singapore, you are not getting a shortlist that somebody else has already won, because nobody has. The seven routes above are the actual public record, and five of them answered.

Questions about hiring marketplace operations help in Singapore

Should I hire an agency or put a person in house?

The deciding number is how many hours a week the platform messages, stock counts and campaign enrolments actually take. Below roughly a day a week, an agency retainer is usually cheaper than a salary and the knowledge is rented. Above that, and especially once you run two marketplaces, an in house operator who sits beside the stock is better value and the agency becomes a specialist you call for campaigns.

Is an overseas agency a problem for a Singapore marketplace account?

It can work and the cost is response time rather than capability. Platform message windows and dispatch deadlines run on Singapore trading hours, so ask who covers Singapore mornings and what the escalation route is at 9am local time. A supplier in a nearby time zone answers that easily and a supplier eight hours away has to answer it with a rota.

How do I check a claim like one thousand stores managed?

Ask for three current references in your own category and market, and ask the platform programme the supplier names whether it is a current member. Scale claims of that kind are generally true at group level and tell you little about whether the team on your account has run a store like yours. Reference calls in your category are the only version of that check that answers the question.

What should the first month produce?

A listing audit with named fixes in priority order, a corrected stock reconciliation, and a written campaign calendar for the next quarter with the platform dates in it. If month one produces a strategy deck and no corrected listings, the engagement has started in the wrong place.

Does Carousell need a different supplier from Shopee and Lazada?

Often yes, and it is worth asking rather than assuming. Carousell's seller mechanics and audience differ from the big two, and a supplier whose process is built around Shopee campaign calendars may have little to do there. We could not read carousell.sg on 29 October 2026, which returned HTTP 403, so nothing here is a claim about what that platform publishes for sellers.

We are not on this page, and the reason is the subject

What we sell is a dated measurement of whether five assistants name a business when a buyer asks, and no reading of an assistant will tell a Singapore seller what an agency should charge to run their Shopee account. Putting a measurement product into a list of operations suppliers would be padding the list, so this page recommends nobody from our side of the fence. The thing worth carrying out of the readings above is smaller and free. Two assistants asked twice who manages marketplace stores in Singapore named no supplier at all, while five of the seven routes we opened did publish something checkable about themselves. For now, the record you can read beats the recommendation you can ask for, and that is true whichever of these suppliers you end up briefing.