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Customer Stories

Real results with AI-powered HR

See how leading organizations deploy Eva to transform their HR operations and employee experience.

What are Eva case studies? These are documented implementations of Vistry's Eva AI HR platform at enterprise organizations. Each case study includes measurable outcomes such as ticket reduction percentages, hours saved, accuracy rates, and ROI metrics—demonstrating how AI transforms HR operations.

Proven Results Across Industries

67%

HR inquiries automated

Specialty Chemicals

22.5%

Zendesk ticket reduction

Multiple clients

750+

Hours saved annually

Enterprise deployment

95%

First-response accuracy

Across all deployments

Envu

Envu

Agriculture / Specialty Chemicals1,000+

67% HR inquiries automated, 22% ticket reduction

"Eva has elevated our HR operations, driving efficiency, and enhancing employee engagement. Its impact on benefits administration & workforce support has been a game-changer, and we're excited to expand its role across our global HR functions."

Laura Jacob

Chief Human Resources Officer (CHRO)

67%

Inquiries automated

22%

Ticket reduction

750+

Hours saved

95%

First-response accuracy

27 sec

Avg response time (from 2.4 hrs)

44%

Drop in follow-up inquiries

88%

Employees rated "very helpful"

83

Net Promoter Score

4.4/5

Satisfaction score

$150K

Est. annual savings

IntegrationMicrosoft Teams, Office365

Challenges

  • High volume of benefits questions during open enrollment
  • Response times averaging 2.4 hours frustrating employees
  • Complex HR documents across multiple countries
  • HR team spending excessive time on routine questions
  • Limited data-driven insights on employee concerns

Solutions

  • Deployed Eva with ZenoChat AI for natural language processing
  • Integrated with Office365, payroll, and benefits providers
  • Built extensive knowledge base covering policies and compliance
  • Enabled 24/7 multilingual support across global offices
  • Provided real-time analytics on trending topics and gaps

Envu, a global leader in crop protection, pest management, and specialty chemicals, deployed Eva to transform HR operations. During open enrollment season, Eva delivered instant, accurate answers to complex benefits questions while automating the majority of routine HR inquiries. The implementation resulted in dramatic improvements in efficiency and employee satisfaction, freeing HR specialists to focus on strategic initiatives.

Circuit of The Americas

Circuit of The Americas

Entertainment / Sports10,000+ staff, 450,000 visitors

845 queries handled, 21 hours saved during F1 Grand Prix

"Eva is completely amazing and transformed our staffing preparedness for operations, security, F&B, etc. at our flagship Formula 1 Grand Prix event and we look forward to deploying it more broadly to other motorsports and concert events."

Scott Wessels

VP of Commercial Partnerships, COTA

845

Queries handled

21 hrs

Staff time saved

24/7

Multilingual support

<2 wks

Deployment time

10,000

Staff members supported

450,000

Event visitors

30+

Languages available

IntegrationGoogle Drive, Concept3D

Challenges

  • First-day chaos with temporary workers lacking guidance
  • Inadequate training for event protocols and customer service
  • Language barriers among diverse, multilingual workforce
  • Staff inundated with queries on schedules and locations
  • High volume of inquiries risking delays and inefficiencies

Solutions

  • Deployed Eva with Concept3D mapping for wayfinding
  • Built event-specific knowledge base in under 2 weeks
  • Enabled multilingual support for international staff
  • Provided real-time processing for instant responses
  • Integrated temporary network boosters for coverage

Circuit of The Americas (COTA) deployed Eva for their flagship Formula 1 Grand Prix event, supporting 10,000 staff members and managing operations for 450,000 visitors. Eva transformed what was previously first-day chaos into orchestrated excellence through AI-powered instant support.

Frequently Asked Questions

Common questions about Eva deployment and results

What results have companies achieved with Eva?+
Companies using Eva have achieved significant results: Envu saw a 22% reduction in HR tickets with 95% retrieval accuracy. COTA saved 21 hours per week while serving 10,000 staff and 450,000 visitors. A specialty chemicals company automated 67% of HR inquiries with a 95% first-response accuracy rate.
What industries use Eva?+
Eva is used across multiple industries including agriculture/crop science (Envu), entertainment and sports (Circuit of the Americas), specialty chemicals, food service, and more. The platform adapts to industry-specific HR policies and compliance requirements.
How quickly can Eva be deployed for events?+
Eva can be deployed in under 2 weeks using the cloud-based platform. Circuit of the Americas successfully deployed Eva for their Formula 1 event, handling 845 queries from staff and providing 24/7 multilingual support across a 450,000-visitor event.
What HRIS integrations does Eva support?+
Eva integrates with major HRIS platforms including Workday, BambooHR, SAP SuccessFactors, ADP Workforce Now, and UKG Pro. It also connects with Microsoft Teams, Slack, SharePoint, Google Drive, Confluence, Box, and Notion.

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67%

Inquiries automated

22%

Ticket reduction

750+

Hours saved

95%

Accuracy

2026-10-06T15:48:00Z

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