Arbolus Intelligence

Weaviate

weaviate.com · Amsterdam-Zuidoost, Netherlands

Weaviate is an open-source vector database company that provides a cloud-native platform for building AI-powered search, recommendation, and retrieval-augmented generation applications. Its software and managed cloud services help developers and enterprises store, index, and query high-dimensional embeddings at scale to power semantic search and generative AI use cases. The company generates revenue through hosted Weaviate Cloud Service (WCS) subscriptions and enterprise support offerings.

  • Database & Data Storage
  • MLOps & ML Platforms
Listed in
Revenue
$9.0M
Employees
120
Founded
2019
Headquarters
Amsterdam-Zuidoost, Netherlands

What 6 Arbolus experts think of Weaviate

NPS scores are favorable, ranging from 8 to 10: three of six experts (50%) gave scores of 9 or 10, and the other three gave 8. Renewal intent is available for only two experts: one indicated yes and one was unsure. Implementation tenure shows four of six (66.7%) at more than one year, one under a year, and one unsure. Qualitative feedback praises vector search and RAG capabilities while noting engineering effort, potential cost growth, and workload tuning needs.Overall Customer Sentiment: Positive

Who reviewed Weaviate

Total customers 6 6 current · 0 former
Reviews growth +5 in six months
Seniority of respondents
  • C-Suite 17% (1)
  • Director 17% (1)
  • Manager 67% (4)
Engineering Engineer Manager NPS 9 Submitted Aug 2026
Strategy Partner C-Suite NPS 8 Undecided Submitted Dec 2025
Engineering Leader Director NPS 8 Will renew Submitted Jul 2026

Employer names and spend open in the full report, along with the other 3 customers.

Everything 6 customers told us about Weaviate.

Employer names, spend, renewal intent and every written answer behind the numbers on this page.

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Sentiment

50 Net Promoter Score, from 6 scored reviews
  • Promoters 3
  • Passives 3
  • Detractors 0

Cumulative NPS by month

+1 over 4 months
  • Dec 8
  • Jul 8
  • Aug 8
  • Sep 9

Net Promoter Score across 1 reviews, accumulated up to each month. Category median 50 across 1 companies.

Praised

  • Improve Cost Predictability
  • Simplify Operations
  • Strengthen AI/ML Ecosystem Fit
  • Strong Semantic and Vector Search

Criticised

  • Performance and Ecosystem Displacement
  • Lower-Cost Alternatives
  • Simpler Managed Solutions
  • Potential Cost Growth

What customers say

Strong Semantic and Vector Search
“I rely on Weaviate for scalable vector and semantic search, including fast similarity searches across large datasets of high-dimensional embeddings.”
Useful Foundation for RAG
“I use Weaviate to store document embeddings and retrieve relevant information for an LLM, which helps reduce irrelevant responses and improve answer quality.”
Flexible Search and Data Modeling
“I value the combination of flexible data modeling, filtering, and support for AI workflows when building production applications.”

Renewal intent

Plan to renew 50%
  • Will renew 1
  • Undecided 1
  • Not renewing 0

Plan to renew, by seniority

  • C-Suite 0% 1 answer
  • Director 100% 1 answer
  • 8/10 Average score from customers who will renew
  • 8/10 Average score from undecided customers

Report

Customer Report - Sep 2026 Sep 2026 6 + 2

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