Best Lead Gen Companies for S. Korean Brands Expanding Globally


South Korean tech and B2B companies are scaling faster than ever. From SaaS and cybersecurity to advanced manufacturing, logistics tech, AI, and industrial B2B, more South Korean brands are entering global markets—first across Southeast Asia (SEA), broader APAC, and Australia/New Zealand (ANZ), and then expanding into North America (US & Canada) once regional traction builds.

But expanding into new regions isn’t just about translation, localization, or marketing. It requires a partner who understands buyer behavior across multiple markets, can execute multi-channel outbound programs, and can generate qualified pipeline at scale. This is why fast-growing Korean companies are turning to specialized lead generation agencies for market expansion, capable of:

  • Helping you expand your customer base in South Korea and overseas
  • Delivering qualified leads across ASEAN, ANZ, NAM, and LATAM
  • Supporting outbound, ABM, and multi-region SDR operations
  • Navigating cultural nuance, enterprise buying patterns, and long B2B cycles

Below is a carefully curated list of the 10 best lead generation companies for South Korean brands expanding globally, selected for their regional strength, global reach, and proven ability to engage technical buyers across industries.

1. Callbox: AI-First Global Growth Engine for Korean Tech & B2B

Callbox is the leading global partner for South Korean B2B and tech companies entering APAC, SEA, ANZ, and North America. Callbox stands apart because it doesn’t just generate leads—it builds a continuous, compounding growth engine based on a powerful philosophy:

1. Callbox AI-First Global Growth Engine for Korean Tech & B2B

“From first touch to lifetime value — Callbox turns awareness into revenue and revenue back into awareness, creating a compounding growth cycle.”

Callbox accelerates revenue by engaging prospects immediately after they enter the awareness stage, converting them into qualified meetings, accepted opportunities, and long-term customers. Once they become customers, Callbox nurtures them into repeat buyers, advocates, and referral sources—feeding revenue back into the top of the funnel.

Their AI-first advantage is integrated into every part of the workflow—not as a gimmick, but as a performance multiplier:

  • AI-optimized outreach cadences for timing precision and relevance
  • AI-powered data acquisition & enrichment across APAC, ANZ, US, and LATAM
  • AI-assisted lead handoff that increases show rates and reduces drop-off
  • AI-supported SDRs who work faster, smarter, and more accurately

With multilingual, regionally distributed SDRs for the US, Singapore, Australia, Japan, and Latin America, Callbox acts as a strategic growth partner for South Korean brands—not a vendor. They are especially strong for SaaS, cybersecurity, cloud, AI, manufacturing tech, and enterprise B2B.

Targeting SEA, ANZ, or the US? Get region-ready with expert support.

Why do South Korean companies choose Callbox for multi-region expansion?

Callbox combines AI-driven precision, region-specific SDR expertise, and a full-funnel lifecycle model. This allows Korean companies to break into competitive APAC and Western markets faster, build a predictable pipeline, and drive long-term customer value.

See how a South Korean Internet Platform Company expanded its customer base in the Asia-Pacific Region.

2. Martal Group

Martal Group is known for its North America–based SDRs, valuable for South Korean brands entering the US and Canada after building APAC traction. Their teams are strong at speaking with enterprise buyers in IT, cybersecurity, manufacturing, and SaaS. As Korean companies expand westward, Martal provides native-sounding communication and familiarity with Western buying norms.

2. Martal Group

What challenges do South Korean companies face when first approaching US buyers?

US buyers expect clarity, speed, and direct explanation of value. Korean brands often underestimate the importance of concise messaging, cultural context, and fast follow-up. Establishing credibility early is key.

3. Belkins

Belkins specializes in personalized email outreach and multi-channel appointment setting. South Korean tech brands choose Belkins when entering the US, UK, and Australia, especially for early pipeline traction. Their outbound strategy excels at crafting tailored value propositions for niche technical buyers.

3. Belkins

4. Demand Inc.

Demand Inc. builds multi-channel outbound programs across US, Canada, Singapore, Australia, and Hong Kong. Their strength is precise targeting and role-based personalization. South Korean SaaS and AI companies use Demand Inc. when they need predictable appointment-setting across major Western and APAC tech hubs.

4. Demand Inc

Is multi-channel outreach more effective than email-only campaigns?

In most markets, yes. Combining email, LinkedIn, and voice outreach improves recognition, builds trust, and increases response rates—especially for technical decision-makers.

5. GrowthOps (APAC)

GrowthOps is one of the strongest enterprise-focused APAC partners for South Korean companies looking to expand into Singapore, Malaysia, Thailand, and Australia. Their ABM experience and regional buyer understanding make them ideal for large B2B deals involving long cycles and multiple stakeholders.

5. GrowthOps (APAC)

What makes APAC buyers different from Western buyers?

APAC buyers often value relationship-building and credibility signals early in the process. Western buyers tend to move faster but expect immediate clarity and proof of ROI.

See how South Korean brands get global buyers to say yes.

6. Mindravels (Asia)

Mindravels supports outbound and SDR services across India, Singapore, Vietnam, and Japan. They are a good fit for South Korean companies with technical products, especially companies selling cloud, software development, cybersecurity, or IT services.

6. Mindravels (Asia)

7. DMA Asia

DMA Asia strengthens APAC demand generation through a mix of inbound and outbound programs across India, Singapore, Hong Kong, and Australia. Korean companies expanding regionally use DMA Asia to build awareness and generate early-stage pipeline before launching US campaigns.

7. DMA Asia

Do APAC markets require different outreach pacing?

Yes. Some APAC markets respond well to structured, slower-paced nurturing, while others—like Singapore and Australia—expect faster engagement. Timing must match the regional norm.

8. NEXUS B2B

NEXUS B2B delivers B2B appointment setting across Southeast Asia, China, India, and Australia. Their SDR teams handle complex technical conversations, making them useful for Korean companies in manufacturing tech, IoT, industrial automation, and hardware-driven sectors.

8. NEXUS B2B

9. StratAgile

StratAgile, a regional APAC lead generation partner, supports ABM and digitally-driven B2B outreach. Korean companies targeting Singapore, Malaysia, and the Philippines use StratAgile for localized messaging and industry-specific targeting across enterprise sectors.

9. StratAgile

10. Martian & Machine (Singapore HQ)

Martian & Machine helps Korean startups and scaleups run performance-driven outbound and inbound programs across Singapore, Indonesia, Vietnam, and Australia. Their data-driven experimentation model is ideal for companies validating new markets before scaling globally.

10. Martian & Machine (Singapore HQ)

Why is market testing essential before scaling internationally?

Market testing reduces risk by validating messaging, ICP fit, pricing assumptions, and response patterns. It ensures teams invest in the right markets with the right strategy.

Key Takeaway

South Korean brands expanding globally need partners who understand regional differences, technical buyer psychology, enterprise sales cycles, and multi-region execution. The best lead generation companies help Korean brands build a bridge between their home market and new international audiences.

Callbox stands out as the AI-first growth engine that unifies awareness, revenue, and lifetime value — helping South Korean companies scale across APAC, SEA, ANZ, North America, and beyond.