Executive Summary
Japanese firm Zenken has deployed ChatGPT Enterprise across its organization to streamline its web marketing and overseas human resources businesses. By leveraging the platform's secure environment and advanced reasoning models, Zenken has automated knowledge work, transformed its sales cycle, and improved international communications. The adoption resulted in significant time savings for employees, measurable increases in sales win rates, and substantial cost reductions from decreased outsourcing.
Key Takeaways
* High Adoption & Time Savings: The company reports over 90% weekly active usage, saving each employee 5 to 15 hours per month.
* Measurable Sales Impact: Zenken achieved a 15-20% increase in proposals passing initial review, a 5-10% lift in new deal win rates, and a ~30% rise in final proposal approval rates.
* Significant Cost Reduction: The company cut annual outsourcing costs by 50 million yen by handling tasks like translation and content creation in-house.
* Core Use Cases: Key applications include in-depth client research, personalized sales proposal generation, strategic analysis using advanced reasoning models, and high-quality multilingual translation for its HR business.
* Security as a Prerequisite: A critical factor for adoption was ChatGPT Enterprise's guarantee that customer data would not be used for model training, ensuring the security of sensitive client and internal information.
Strategic Importance
This case study serves as a powerful testimonial for OpenAI, demonstrating tangible ROI and validating ChatGPT Enterprise's value proposition for security-conscious corporate clients in complex B2B sales environments.