Best agencies · Singapore

The best lead generation agencies in Singapore

B2B lead generation agencies serving Singapore, from full-service demand gen to cold-email and SDR specialists. The ones worth knowing in 2026, verified.

By Rahul Bageria, co-founder · Updated July 2026

Real Good GTM publishes this list, and we are on it. We do not rank ourselves first, we say where we fit and where we do not, and every agency is verified on its own site. Judge for yourself. Read how we evaluate.

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The short answer Verified July 2026

No single best, only the best for your buyers and your motion. The short version, by use case:

Best Singapore-founded SDR team

Konsyg

Sales-as-a-Service, call, email, and LinkedIn.

Best phone-led appointment setting

inCall Systems

In-house contact centre, ISO 27001 certified.

Best full-service demand gen

iSmart Communications

Inbound plus outbound, running since 2003.

Best cross-border into APAC

Callbox

Established global teams, with a Singapore office.

Our slice (that's us)

Real Good GTM

Signal-based, founder-led. Paris-based, serving the US and Europe primarily, also reaching into Southeast Asia. Not a local Singapore volume shop.

Every agency below is verified on its own site, July 2026. No paid placements, no affiliate links.

Book a Fit Check

At a glance

The Singapore lead gen agencies at a glance

Grouped by the job they do best, not ranked. Locations and models are taken from each agency's own site, checked July 2026. Most quote per scope, shown here as "custom."

Agency	What they do	Best-fit	Pricing	Based
Konsyg	Sales-as-a-Service	B2B wanting an SDR team	Custom	Singapore
inCall Systems	Telemarketing, appt setting	Phone-led programs	Custom	Singapore
Scenes City	AI-assisted telemarketing	SMB to mid-market	Custom	Singapore
iSmart Communications	Inbound + outbound demand gen	APAC B2B	Custom	Singapore
Digital Squad	Demand gen + performance	B2B and B2C	Custom	Singapore
Callbox	Multi-channel outbound	Multi-region APAC	Custom subscription	Singapore (+US)
Denave	Tele-digital demand gen	Enterprise IT and tech	Custom	Singapore (+IN)
Green Hat	ABM, demand gen	Enterprise B2B	Custom	Singapore (+AU)
Reachly	Multichannel, signal-tied	B2B across APAC	Custom	Bangkok, APAC
Real Good GTM	Signal-based outbound	Seed to Series A (US/EU)	Month to month	Paris (remote)

Details move. Treat this as a July 2026 snapshot and confirm on each agency's own site before you commit.

How we built this list

A practitioner read, not a reposted directory

We verified each agency on its own current site in July 2026: where it is based, what it does, who it serves, and its engagement model. We featured shops that genuinely serve the Singapore B2B market, with delivery you can point to, not directory listings wearing the label.

We run signal-based outbound ourselves, so the read on each shop comes from knowing the work. Where an agency had no independent review sample we could trust, we left the rating off rather than invent one.

How we built this list

→ Every agency verified on its own current site, July 2026
→ Singapore presence checked on each agency's own contact or about page
→ Ratings shown only where a credible independent sample exists (roughly 10+ on Clutch, G2 or Trustpilot), linked and dated
→ No affiliate links, no paid placements, no pay-to-list
→ We publish this list and we are on it. We do not rank ourselves first, and we say where we are not the fit
→ Grouped by fit, not ranked. If a fact could not be verified, we left it out

The real test

A Singapore desk, or an APAC shop pointed at the region?

Singapore lead gen splits between homegrown teams in-market and regional shops that run into Singapore, often delivered from offshore desks. Each buys you something different.

Local Singapore team

Reps who know the Singapore market

An in-market team works your timezone, knows local buyers, and respects the PDPA and the Do Not Call rules. Better market fit, but a smaller talent pool and usually a higher cost base than offshore delivery.

Use it when your buyers are in Singapore or the region and local nuance matters.

Regional or offshore desk

Cross-border coverage and scale

Many APAC shops deliver from the Philippines or India at a lower per-seat cost, running into Singapore and beyond. Reach and scale, but you trade some local nuance and timezone overlap.

Use it when you run multi-region APAC outbound or want efficient coverage across a large TAM.

The read

The axis that matters most in Singapore is the PDPA and the Do Not Call (DNC) Registry, plus the Spam Control Act for commercial email. An agency that dials or texts a Singapore number without scrubbing the DNC registers, or emails without a clear sender and unsubscribe, is a liability. Ask any agency here two things: who sends and dials, and where, and how do you keep us compliant with the PDPA and the DNC registry?

The agencies

The Singapore lead gen agencies, grouped by job

Grouped by what they are best at, not ranked one to nine. Read the group that matches where you are.

Group A

Singapore-founded outbound and appointment setting

Homegrown teams that run cold calling, email, and LinkedIn to book qualified meetings. The pick when you want an outsourced SDR motion delivered from Singapore.

01

Konsyg

Singapore Sales-as-a-Service

A Singapore-founded "Sales-as-a-Service" firm that runs your outbound sales development end to end: cold calling, email, LinkedIn, and appointment setting, on your behalf.

Best for

B2B and SaaS teams that want an outsourced SDR and closing team across APAC, EMEA, and North America.

Model & pricing (Jul 2026)

Outsourced sales teams on a retainer, quoted per scope. Pricing not published.

Where they're strong

Singapore-founded and registered, full-cycle sales development, and coverage well beyond just APAC.

Consider elsewhere if

You want a purely local, single-market program or fully published pricing. They run broad and quote per scope.

Bottom line

A strong Singapore-born pick when you want an outsourced sales team, not just a lead list.

Visit Konsyg Verified Jul 2026

02

inCall Systems

Singapore Telemarketing

A Singapore B2B telemarketing and demand-generation house with its own contact centre and proprietary database, serving ASEAN and the wider APAC region.

Best for

Teams that want outbound telemarketing, appointment setting, and event or webinar registration across Asia Pacific.

Model & pricing (Jul 2026)

Managed contact-centre campaigns, quoted per scope. Pricing not published.

Where they're strong

An in-house contact centre, ISO 27001 certification, and a proprietary contact database for APAC.

Consider elsewhere if

Your motion is email and LinkedIn led rather than phone. They are built around calling.

Bottom line

The pick when phone-led appointment setting into APAC is the job and data security matters.

Visit inCall Systems Verified Jul 2026

03

Scenes City Telesolutions

Singapore Appointment setting

A Singapore-headquartered, AI-assisted sales development agency running B2B and B2C lead generation, appointment setting, event registration, and surveys.

Best for

SMB to mid-market firms that want outbound telemarketing and appointment setting in Singapore and across APAC.

Model & pricing (Jul 2026)

Managed campaigns, quoted per scope. Pricing not published.

Where they're strong

AI-assisted calling across phone, email, LinkedIn, and WhatsApp, plus event and survey work.

Consider elsewhere if

You need a published price or an independently verified review sample. Neither is public.

Bottom line

A flexible, Singapore-headquartered option for multi-channel outbound and appointment setting.

Visit Scenes City Verified Jul 2026

Group B

Full-service demand generation

Teams that build pipeline through inbound and outbound together, content and SEO alongside prospecting. The pick when demand should compound, not just arrive as a lead list.

04

iSmart Communications

Singapore Demand gen

A Singapore B2B demand-generation agency, running since 2003, that blends AI-driven inbound with outbound telemarketing, LinkedIn, and email.

Best for

APAC B2B firms, from SaaS to cybersecurity to logistics, that want integrated inbound and outbound demand gen.

Model & pricing (Jul 2026)

Managed programs and retainers, quoted per scope. Pricing not published.

Where they're strong

A long track record since 2003, SEO and content alongside outbound, and marketing automation.

Consider elsewhere if

You want a single-channel, purely outbound engagement. Their strength is the blend.

Bottom line

The pick when you want inbound and outbound demand gen under one long-established Singapore roof.

Visit iSmart Verified Jul 2026

05

Digital Squad

Singapore Demand gen · paid

A founder-led, Singapore-based agency that runs demand generation alongside SEO, paid, content, and marketing automation.

Best for

B2B and B2C firms that want demand gen bundled with performance marketing.

Model & pricing (Jul 2026)

Retainer or project, quoted per scope. Pricing not published.

Where they're strong

Integrated demand gen and performance marketing, founder-led, with an AI-assisted approach.

Consider elsewhere if

You want cold-outbound SDRs and appointment setting. They lean inbound and paid.

Bottom line

A solid choice when demand should be built through content and paid, not just cold outreach.

Visit Digital Squad Verified Jul 2026

Not sure which model fits your stage? Book a fit check. We will tell you straight which of these is the right call, even when it is not us.

Book a Fit Check

Group C

Cross-border and regional scale

Established firms that run multi-country APAC programs from a Singapore office. The pick when coverage across the region, and scale, is the job.

06

Callbox

4.6 Clutch 119 Multi-channel

One of the oldest names in outbound, running since 2004 with delivery teams across seven countries, and a Singapore office as its APAC base.

Best for

B2B teams wanting established, multi-region outbound into Singapore and the wider APAC market.

Model & pricing (Jul 2026)

Subscription-based managed service, quoted per campaign scope. Pricing not published.

Where they're strong

Multi-region delivery, a long track record since 2004, and account-based plus event marketing under one roof.

Consider elsewhere if

You want a small, senior, single-market team or published pricing. Callbox is built for larger, cross-border programs.

Bottom line

The established cross-border pick when APAC coverage is the job, with a Singapore office to anchor it.

Visit Callbox Verified Jul 2026

07

Denave

Singapore · IN HQ Tele-digital

A large APAC B2B demand-generation and tele-plus-digital sales house, headquartered in India, running its APAC work from a Singapore office.

Best for

Enterprises, especially in IT and tech, wanting large-scale, multilingual demand gen across APAC from a Singapore base.

Model & pricing (Jul 2026)

Managed programs and outsourced tele-digital teams, quoted per scope. Pricing not published.

Where they're strong

Scale, multilingual delivery, data and sales-intelligence services, and webinar and event marketing.

Consider elsewhere if

You want a boutique, founder-led team or purely local delivery. Denave is built for scale, headquartered in India.

Bottom line

The pick when you need enterprise-scale, multilingual APAC demand gen out of a Singapore hub.

Visit Denave Verified Jul 2026

08

Green Hat

Singapore · AU HQ ABM · demand gen

An established full-service B2B marketing agency, founded in 2001 and headquartered in Melbourne, with a Singapore office and a focus on demand generation and ABM.

Best for

Enterprise B2B marketers wanting account-based marketing and demand-gen strategy and execution across ANZ and APAC.

Model & pricing (Jul 2026)

Retainer or project consulting, quoted per scope. Pricing not published.

Where they're strong

Running since 2001, deep ABM and demand-gen strategy, marketing automation, and content.

Consider elsewhere if

You want a phone-led SDR team booking meetings now. Green Hat is strategy and demand-gen led.

Bottom line

The pick for enterprise ABM and demand-gen strategy, with a Singapore office and ANZ roots.

Visit Green Hat Verified Jul 2026

Group D

Founder-led and cross-border

Smaller, senior teams that run the whole motion themselves. The pick at seed and early Series A, when you want operators, not a pod.

09

Reachly

Bangkok · APAC Founder-led · multichannel

An APAC-rooted, founder-led B2B lead-generation agency that runs multichannel campaigns tied to real buying signals to book qualified meetings, so clients avoid building an internal SDR team.

Best for

B2B companies that want outsourced qualified-meeting generation instead of hiring SDRs, with strong APAC coverage and a stronger presence in Singapore and Hong Kong.

Model & pricing (Jul 2026)

A monthly retainer based on scope, across channels and volume. Pricing not published.

Where they're strong

Signal-tied multichannel outreach across cold email, LinkedIn, cold calling, and LinkedIn content, a founder with 12-plus years in GTM, and clients across nine countries.

Consider elsewhere if

You want a Singapore-headquartered team or published pricing. Reachly is Bangkok-based across APAC, and its aggregate pipeline figures come from press, not its own site.

Bottom line

A founder-led APAC pick when you want signal-based multichannel outreach into Singapore and Hong Kong, calling included.

Visit Reachly Verified Jul 2026

10

Real Good GTM (that's us)

Paris · US/Europe Founder-led · signal-based

The two of us run signal-based outbound for seed to early Series A. You get booked pipeline plus a clear read on what to scale, and you keep everything we build. We are Paris-based, serving the US and Europe, and we also reach into Southeast Asia, so for Singapore we are the cross-border option, not a local volume shop.

Best for

Seed to early Series A founders still close to their own sales who want founders on the account, not a junior pod.

Model

A two-month start, then month to month, no lock-in. Signals over lists, built per segment.

Where we're strong

Founder-led delivery, signal-based rather than list-based outbound, and a learning memo on what actually converts.

Not for you if

You need enterprise-scale SDR volume, a big team, a Clay-credentialed badge, or a local Singapore desk in your timezone.

Straight talk

We are the right call for a specific slice, not everyone on this list. If outbound is not right for you yet, we will say so on the call.

Book a Fit Check

How to choose

Who each one is for

Find your situation below and start with the agency next to it. A sensible starting point, not the only right answer.

Want an outsourced SDR team

Konsyg for Singapore-founded Sales-as-a-Service, or inCall Systems for a phone-led contact centre.

Want inbound plus outbound together

iSmart Communications or Digital Squad, demand gen with content and paid alongside prospecting.

Running multi-country APAC outbound

Callbox or Denave, established teams built for regional scale and multilingual delivery.

Enterprise, account-based programs

Green Hat for ABM and demand-gen strategy, or iSmart for ABM with execution.

Phone-led, compliance-sensitive calling

inCall Systems, ISO 27001 certified, or Scenes City for AI-assisted telemarketing.

Selling into the US or Europe from Singapore

Real Good GTM (that's us), founder-led signal-based outbound. We say so if outbound is not right yet.

Putting it together

How we'd actually choose

We build this kind of system for a living, so here is the order we would run the decision in, whether or not we are on your list.

1

Start with the outcome you are buying

Meetings booked now points to an SDR or telemarketing team. Demand you build over time points to the demand-gen shops.

2

Check where delivery actually sits

A Singapore address does not always mean the callers sit in Singapore. Ask who sends and dials, and from where, before you sign.

3

Confirm PDPA and DNC, then signal versus volume

Get the compliance story straight, then match the model to your TAM. A small market rewards precision, a large one rewards coverage.

Want a second opinion? Book a fit check and we will tell you which of these fits your stage, even when it is not us.

Book a Fit Check

FAQ

Questions people ask

What does a B2B lead generation agency cost in Singapore?

Most Singapore agencies quote a monthly retainer per scope rather than publishing a price. Outsourced SDR and appointment-setting programmes typically start in the low thousands of dollars a month, and full-service demand gen runs higher. A few publish figures, most route you to a call, so confirm the current number on the agency's own site and match it to your stage.

Is cold email and cold calling legal in Singapore?

Both are possible, within rules. The Spam Control Act governs unsolicited commercial email and messages, requiring clear sender identification and a working unsubscribe, and any marketing call or text to a Singapore number must first be scrubbed against the Do Not Call (DNC) Registry under the PDPA. B2B outreach has room, but the agency's data sourcing and compliance story still matters. Ask how it stays compliant before you sign.

Should I hire a Singapore agency or a regional one?

If your buyers are in Singapore, a local team that works your timezone and knows the market is usually worth it. If you run outbound across Southeast Asia, a regional shop with offshore delivery can cover more ground at a lower per-seat cost. The deciding question is where the people who actually send and dial sit, and whether they know your market.

What is the difference between lead generation and appointment setting?

Lead generation is the broader job of creating and qualifying interest across channels. Appointment setting is the narrower one of booking a qualified meeting on your calendar, usually by phone and email. Many Singapore agencies do both, but the pricing and the metrics differ, so be clear which outcome you are buying.

Do these agencies do cold calling, or just email and LinkedIn?

It varies. Some Singapore shops are telemarketing-led, others are cold-email and LinkedIn specialists, and full-service teams blend all three. If phone is central to your motion, pick a team built for it and DNC-compliant. If your buyers respond better to email and LinkedIn, weight toward those specialists.

How do I choose a B2B lead generation agency in Singapore?

Start with the outcome you are buying, meetings or a system you keep, then match the stage, since some shops screen for revenue. Check where delivery sits, confirm the PDPA and DNC compliance story, and only then weigh the logo. This page groups the agencies by the job they do best so you can start from your situation.

About the author

Rahul Bageria

Co-founder of Real Good GTM. He has been a first business hire and Chief of Staff at seed-stage B2B startups, building outbound pipeline from the operator's chair. This roundup comes from running signal-based outbound for early-stage teams, and from verifying each agency on its own site, not a directory listing.

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