Most of what matters when evaluating a marketing agency isn't market-specific — see our broader guide to choosing a marketing agency for the full breakdown on fee structures, contract terms, and general red flags, all of which apply equally in Singapore. This page covers what's actually different here.
PDPA and DNC: the one genuinely Singapore-specific check
Any agency running lead-generation advertising for a Singapore business is handling personal data under the Personal Data Protection Act (PDPA), and any follow-up contact (calls, SMS, WhatsApp) needs to respect the Do Not Call (DNC) Registry. This isn't optional or a nice-to-have — it's a compliance obligation that sits on your business, not just the agency, if it's handled badly.
Ask specifically: how do they screen a lead list against the DNC Registry before a follow-up campaign runs? What consent language appears at the point of data collection? An agency that gives a vague "yes we're PDPA compliant" without describing an actual process is a weaker answer than one that walks through the specific screening step. Check your own current follow-up messaging against the rules directly with our free PDPA & DNC Registry Checker, regardless of which agency you're evaluating.
Fee structure and contract terms — same principles, worth re-checking locally
Flat-fee and percentage-of-ad-spend models are both used in the Singapore market too, with the same tradeoff our broader guide covers: a percentage model scales the agency's revenue with your spend, which is worth being aware of when a budget increase is recommended. Get the fee structure in writing, and confirm what's excluded — ad spend, creative production and landing pages are commonly billed separately here as well.
Industry specialization in a regulated Singapore vertical
If you're in a regulated vertical — aesthetic or dental clinic advertising under MOH and SMC guidelines specifically — specialization becomes a real signal rather than a marketing label, the same way it does under KKM/MDC in Malaysia. MOH's rules differ from Malaysia's in real, specific ways (stricter treatment of before/after imagery and promotional pricing in several respects), so a Malaysia-only track record doesn't automatically transfer. Ask for evidence of Singapore-specific compliance experience, or check current copy directly against our free MOH Ad Compliance Checker.
How to compare Singapore agencies against each other
Comparing shortlisted agencies works better on evidence than on credentials. Three questions separate them quickly. Which of your benchmark figures come from accounts you manage in Singapore? Regional averages converted into SGD are not Singapore figures, and an agency that cannot separate the two is planning your budget against the wrong market. How do you verify that reported conversions are real? The blunt check is to count the enquiries the business actually received in a period and compare that against what the platform reported; where the two disagree, the platform figure is wrong until proven otherwise. Form-fills firing on page load, call tracking counting existing customers, and duplicate tags through both a tag manager and a hardcoded snippet all produce numbers that look better than reality, which is why they survive — nobody investigates a metric that is beating target. What would you decline to take on? An agency that recommends its own service regardless of the brief is selling rather than diagnosing.
Certifications are weaker evidence than they appear. Google and Meta partner badges are largely a function of managed spend volume and platform training completion, not of whether the work was any good, so they indicate scale rather than skill. They are worth noting and worth nothing on their own.
Additional red flags specific to how the work is structured
Beyond the universal ones covered in the broader guide, four structural signals are worth checking before signing, because each is difficult to reverse afterwards. Guaranteed positions or guaranteed lead volumes — no agency controls either, so a guarantee is either meaningless or is being met by buying low-quality volume. Reporting built entirely on platform-counted conversions with no verification against real enquiries, per the check above. Lead follow-up designed without separate marketing consent, or without a documented basis for calling a Singapore number, which places the PDPA and DNC exposure on you rather than on the agency — the substance of that obligation is set out earlier on this page. And contracts where the ad account, website or tracking configuration is not owned by you: if leaving the agency means leaving the account history behind, the switching cost is being engineered rather than earned.
What this doesn't cover
Same caveat as our broader guide: this is about evaluation criteria, not a ranking of specific agencies. We're not a neutral judge of our own competitors, and a list claiming to be one would be exactly the kind of unverifiable claim this page warns against elsewhere.