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Shirofune Case Study

We share the best case studies from real customers who have accompanied Shirofune

Direct Agents - Case Study

Direct Agents, a U.S.-based digital marketing agency, faced challenges with manual ad management tasks, especially with Amazon Ads, limiting their ability to focus on strategic initiatives. After integrating Shirofune’s automation, they reduced ad management time by up to 63%, freeing up resources for high-value tasks like audience segmentation and creative testing. The E-Commerce team saw a significant drop in workload from 125 hours to 45.8 hours per account. This automation led to impressive results, including a 75% increase in MQLs with only a 14% rise in ad spend. Direct Agents continues to expand Shirofune’s use across platforms, optimizing omni-channel marketing and driving long-term client success.

Zilker Partners - Case Study

Zilker Partners, a U.S.-based digital marketing agency, struggled to scale operations after shifting to a generalist model, with staff handling multiple tasks across paid media, SEO, and content. The lack of an integrated platform for real-time optimizations limited campaign effectiveness. By adopting Shirofune, they streamlined campaign management across platforms, enabling generalists to manage ad operations independently. In just one month, they onboarded 24 client accounts and doubled the account capacity per manager from 6 to 12. Automation saved up to 54 hours per month per manager. Zilker Partners now efficiently scales operations, allowing generalists to focus on strategic initiatives while managing high-performing campaigns across platforms.

Carrot-Top - Case Study

Carrot-Top, a patriotic products retailer, struggled with rising customer acquisition costs and inefficient, agency-led ad management. Delayed reports and rigid processes led to wasted spend and missed opportunities across platforms like Google and Meta. After adopting Shirofune’s AI-powered ad automation, Carrot-Top gained real-time budget control and cross-platform optimization. Within weeks, they cut CPA by 40%, improved off-season ROAS from 2.7 to over 5.0, and replaced manual workflows with fast, data-driven decisions. Now, Carrot-Top continues to scale with Shirofune, using AI to fine-tune campaigns and prioritize high-value customers.

Yamazen - Case Study

Yamazen implemented Shirofune to improve the efficiency of its Amazon ads for over 10,000 products. Facing challenges with limited resources and a complex ad management interface, Yamazen leveraged Shirofune's automation for bid adjustments and budget management. Within two months, ad-driven sales increased by 1.3 times, and ROAS improved by 18%. Daily reports from Shirofune enabled quick responses to demand changes, resulting in a streamlined and data-driven approach to campaign optimization, significantly enhancing Yamazen's advertising performance on Amazon.
Media Republic Case study

Media Republic - Case Study

Media Republic’s adoption of Shirofune’s ad automation platform led to a nearly 60% reduction in operational time, streamlining tasks across multiple platforms. Audit times dropped from 8 hours to 30 minutes, and paid search budget management was reduced from 17.3 to 2.1 hours per month. This efficiency boost allowed Media Republic to maintain ad spend while increasing conversions and customer lifetime value (LTV), ultimately doubling their ROAS and enhancing profitability to meet growing demand effectively.
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