Struggling to fill your sales pipeline in the competitive Japanese B2B market? Whether you're a SaaS startup or an established enterprise expanding across Japan, the right outbound sales agency can accelerate growth, book qualified meetings, and create predictable revenue. Below are the top outbound sales agencies in Germany that specialise in appointment setting, lead generation, and pipeline growth.
SalesCaptain an intent-triggered outbound marketing and GTM agency for B2B companies. They go beyond static lists and generic outreach, using real buyer signals to engage accounts at the right moment with the right message, offer, and channel mix. Their three-layer system spans AI-insight campaigns, intent-signal campaigns, and inbound reactivation to create consistent pipeline and qualified meetings.
Highlights
Check them out: https://www.salescaptain.io/
Dentsu is the largest, most recognizable Japan-founded name on this list, and it still matters for outbound and B2B growth work because of its mix of brand strategy, customer experience, and business transformation. It is not a pure cold email shop, but if you need a partner that understands how messaging, targeting, data, and performance marketing fit into a larger sales pipeline, dentsu is hard to ignore. For companies trying to scale faster across different regions, dentsu brings a full team mindset rather than a narrow one-platform play. It is especially useful when outbound campaigns need to connect with broader marketing and revenue management goals.
Key highlights:
Check them out: https://www.dentsu.co.jp/en/
Symphony Marketing is a Tokyo-based B2B marketing agency built around demand generation, which makes it a strong choice when your outbound needs are more about qualified leads, booked meetings, and tighter alignment with the sales function than brute-force outreach. Their Demand Center framework is designed to generate marketing qualified leads and hand them off cleanly to sales reps, which is useful for companies that want better response rates and less wasted time on low-quality prospects. If your team needs help with messaging, follow ups, and lead nurturing as part of a larger outbound system, Symphony is a polished, enterprise-ready option.
Key highlights:
Check them out: https://www.symphony-marketing.co.jp/en/
Best Effort Marketing is a Tokyo-headquartered agency that positions itself as a practical marketing outsourcing partner for foreign companies in Japan. That makes it appealing for teams that need a dedicated team to handle list building, lead sourcing, outreach, and other time-saving work without building everything in-house. The agency’s own copy emphasizes one-stop marketing outsourcing, which is valuable when your sales pipeline needs coordinated support across marketing, content, and execution. For Japan market entry or outbound campaigns aimed at local customers, this is the kind of agency that can help you move from research to execution without dragging the process out.
Key highlights:
Check them out: https://besteffortmarketing.co.jp/en/
Yakumo Marketing is built for overseas companies trying to win in the Japanese market, and its messaging is all about one-stop support from strategy through execution. That matters for outbound because Japan B2B often needs careful research, localized messaging, and disciplined follow ups to turn prospects into conversations. Yakumo’s materials specifically mention lead generation and nurturing in Japan, so this is a strong fit when your outbound campaigns need more than a list and a cold email sequence. It is especially relevant for businesses that want a partner to help identify the right industries, craft messaging, and improve response rates while keeping the process grounded in local business realities.
Key highlights:
Check them out: https://yakumo-marketing.jp/
I&D is one of the clearest matches for a modern outbound agency on this list because its official site explicitly talks about lead generation, account based marketing, telemarketing, and lead nurturing. It says it has completed more than 3,000 projects and focuses on technology and manufacturing, which is helpful if your sales team needs qualified leads rather than generic traffic. This is a strong pick for businesses that want a dedicated team to support the SDR function with cold outreach, data-backed targeting, and better calendar fill. If your goal is more booked meetings, more efficient sales conversations, and fewer wasted calls, I&D is a serious Japan option.
Key highlights:
Check them out: https://www.iad.co.jp/english/
transcosmos is one of Japan’s biggest outsourcing names, and its sales support offering goes well beyond simple customer service. Its own materials describe outbound services that use data, digital marketing capabilities, lead generation, lead nurturing, and even sales closing support. That combination makes it a strong choice for companies that want one platform or one operating partner to manage outreach, chat, phone, and other channels at scale. transcosmos is especially interesting when you need a large, process-driven full team to support different regions, improve performance, and connect marketing activity to real revenue outcomes.
Key highlights:
Check them out: https://www.trans-cosmos.co.jp/english/
BELLSYSTEM24 is a Tokyo-headquartered BPO and contact-center company with a long operating history, and that makes it relevant whenever outbound sales needs reliable process management. While it is better known for contact center and outsourcing services than for pure cold outreach, its scale and CRM-related services make it a practical option for organizations that need structure around customer conversations, follow ups, and sales operations. For companies that want to reduce cost, improve management, and keep conversations moving, BELLSYSTEM24 is a strong operational partner. It is especially useful when outbound work needs to sit inside a bigger customer support or back-office system.
Key highlights:
Check them out: https://www.bell24.co.jp/en/
tele-net is an Osaka-based company that describes itself as a “sales-boosting” call center, which makes it highly relevant for outbound calling, appointment setting, and direct sales support. Its service pages and contact forms explicitly mention outbound service, and the company has been operating since 1994. That gives it a practical edge for firms that need a phone-first sales process, stronger response rates, and a partner that knows how to connect with customers by phone. If your outbound campaigns still rely heavily on cold calling, live follow ups, and fast qualification, tele-net is very much in the right lane.
Key highlights:
Check them out: https://www.tele-net.co.jp/en/
HITO-Communications is a major Japan-based sales support company with explicit sales outsourcing, outbound support, and nationwide coverage. Its site says it helps clients achieve sales targets, and it even breaks out outbound services such as new customer origination and promotion for existing customers. That makes it one of the strongest choices here for teams that want a dedicated team, a full team, and real operational scale behind their sales process. It is especially strong when businesses need outbound campaigns, phone work, and field or retail support to work together instead of sitting in separate silos.
Key highlights:
Check them out: https://hitocom.co.jp/en/
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