What Nuclia does

Nuclia was a Barcelona-based AI startup founded in 2019 that built an Agentic Retrieval-Augmented Generation (RAG) platform designed to connect enterprise proprietary content with generative AI systems. The platform's core technology stack consists of NucliaDB as the underlying vector database, Retrieval Agents that decompose user questions into sub-questions and dynamically orchestrate queries across knowledge boxes, SQL databases, MCP servers, and internet search, and REMi — a proprietary evaluation model that continuously monitors answer relevance, context relevance, and groundedness. Supporting components include the AI Sync Agent for continuous content synchronization, Ingestion AI Agents that process 30+ file formats (documents, spreadsheets, audio, video, images), Prompt Lab for prompt optimization, and PII anonymization tools.

The product supports 40+ LLM configurations (OpenAI, Azure OpenAI, Anthropic Claude, Google Gemini) and is LLM-agnostic, allowing customers to swap models via single configuration changes without re-indexing. Compliance posture includes SOC 2 Type II, ISO 27001, and GDPR certifications. The go-to-market combined a product-led growth motion — a no-code dashboard at rag.progress.cloud with a 14-day free trial and self-serve onboarding — with enterprise field sales delivered through Progress Software after the June 30, 2025 acquisition (~$50M).

Target customer segments span enterprise organizations (knowledge management, AI-powered search, customer support, engineering documentation), legal firms (compliance-driven verifiable answers), content-heavy associations and publishers, and developers / AI/ML engineers integrating via API and SDK. Named evidence of adoption is thin in the source data: one unnamed law firm and one Sitefinity-related enterprise customer are referenced. Prior to acquisition, Nuclia had raised approximately $5.9M across seed rounds from Elaia and Crane Venture Partners and was explicitly described as pre-revenue.

Name

Nuclia

Legal name

Nuclia

Website

https://nuclia.com

Company type

Private

Founded year

2019

Operating status

Acquired

Headcount range

11–50 employees

Short description

Nuclia, founded in Barcelona in 2019 and acquired by Progress Software in June 2025, built an Agentic RAG-as-a-Service platform that connects enterprise proprietary content to generative AI systems, serving enterprise organizations, legal firms, content-heavy associations, and developers with verifiable, source-cited answers.

Ownership category

akta.pro rank

Product category

AI Knowledge Management Software

NAICS

Software Publishers (5132), Software Publishers (51321)

SIC

Services-Prepackaged Software (7372)

akta.pro primary industry

Metadata, Catalog & Semantic Layer for Data Platforms (HDAEABAJ)

Keywords

• Agentic RAG platform
• Retrieval-augmented generation
• Enterprise knowledge layer
• Vector database software
• Generative AI search

Headquarters

HQ city

Barcelona

HQ country

Spain

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Software

Cost components

Technology or R&D, Personnel, Infrastructure, Marketing or Sales, Operations

Revenue model

1. RAG-as-a-Service Subscription: Nuclia operates as a SaaS RAG-as-a-Service provider, generating recurring subscription revenue from organizations deploying agentic RAG technology to enable GenAI applications over their proprietary business data.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels6 records

Core offering

Nuclia provides an Agentic RAG-as-a-Service platform that enables organizations to deploy generative AI applications grounded in their proprietary business data. The platform ingests 30+ file formats, indexes them through the NucliaDB vector database, and uses retrieval agents with dynamic sub-question analysis to deliver source-cited, audit-logged answers via APIs, SDKs, or no-code widgets, integrating with 40+ LLM providers.

Product overview

Nuclia, acquired by Progress Software in June 2025, offers a unified Agentic RAG platform for AI agents and LLMs. The core product RAG-as-a-Service provides an agentic knowledge layer that connects enterprise content to AI experiences. The platform consists of the NucliaDB vector database as the foundation, with modular components including AI Sync Agent for data synchronization, Model Context Protocol (MCP) integration for external tool connectivity, RAG Evaluation Model (REMi) for quality monitoring, and Prompt Lab for prompt optimization. The platform supports 30+ content types (documents, audio, video, images) and integrates with 40+ LLM providers including OpenAI, Azure OpenAI, Anthropic Claude, and Google Gemini.

Differentiator

Problem solved

Functional benefit

Brands

• NucliaDB: RAG database product - part of the Progress Agentic RAG solution suite
• RAG-as-a-Service
• Modular RAG

Products and services

• RAG-as-a-Service A SaaS RAG-as-a-Service product enabling organizations to deploy agentic RAG capabilities over their proprietary business data. Provides a managed knowledge layer for ingestion, indexing, retrieval, and answer generation, supporting 30+ file formats.
• Modular RAG A modular approach to RAG that allows organizations to customize components including ingestion pipelines, retrieval strategies, and LLM configurations for specific use cases.
• NucliaDB The vector database component of the RAG platform that stores and indexes enterprise content for semantic search and retrieval, forming the foundation of the knowledge layer.
• AI Sync Agent An AI agent that automates continuous data synchronization from external sources into the knowledge layer, keeping the indexed knowledge base continuously updated as enterprise content changes.
• Model Context Protocol (MCP) A protocol integration that enables retrieval agents to query Model Context Protocol servers as data sources within a single response, allowing connection to external tools and services.
• RAG Evaluation Model (REMi) A built-in RAG evaluation model that continuously monitors three key quality metrics (answer relevance, context relevance, and groundedness) to ensure AI accuracy over time.
• Prompt Lab An interactive tool for testing and refining prompts used in the RAG pipeline, allowing users to optimize answer quality before deployment.
• Context Box A knowledge container that indexes enterprise content into a governed, continuously updated foundation for AI-powered retrieval and answer generation.

Quantifiable outcome

• Reduces time to AI deployment from months to weeks
• +2 more outcomes

Named customers2 records

Segments4 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration6 records

AI capability12 records

Feature8 records

Partnerships

One partnership is on record.

• Progress SoftwarecoreStrategic or Co-development Partner · 30 June 2025Progress Software acquired Nuclia on June 30, 2025, extending its Data Platform capabilities with advanced agentic RAG technology. The acquisition, reportedly around $50 million, helps Progress accelerate customer GenAI initiatives and expand access to agentic RAG technology across a broader market.

Scale indicators5 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Pinecone: Managed vector database purpose-built for production RAG and semantic search. Directly competes with NucliaDB and Nuclia's RAG-as-a-Service in the enterprise retrieval layer, offering similar ingestion, indexing, and similarity search primitives with a SaaS delivery model.
• Weaviate: Open-source vector database with managed cloud offering for AI-native applications. Competes with Nuclia on enterprise retrieval, hybrid search, and generative search workflows, with comparable multi-modal ingestion and LLM integration capabilities.
• Qdrant: Open-source vector search engine with managed cloud and on-prem deployment. Targets the same enterprise RAG and semantic search use cases as Nuclia, emphasizing high-performance similarity search and Rust-based reliability for production workloads.
• Vectara: Generative AI platform focused on enterprise RAG-as-a-Service with built-in hallucination mitigation and grounding. Closely comparable to Nuclia's positioning as an end-to-end agentic RAG layer for enterprise content, including legal and regulated verticals.
• Glean: Enterprise AI search and assistant platform indexing workplace data across SaaS applications. Competes with Nuclia in the enterprise knowledge layer category, offering RAG-powered answers grounded in proprietary business content for similar buyer personas.

Emerging players

• LangChain: Open-source LLM orchestration framework with LangGraph for agentic workflows and LangSmith for evaluation. Adjacent to Nuclia's retrieval-agent architecture and addresses similar developer and AI/ML engineer personas building RAG applications.
• LlamaIndex: LLM data framework for ingestion, indexing, and retrieval over enterprise content. Comparable to Nuclia's developer-facing API/SDK surface and overlaps on multi-source retrieval and query transformation capabilities.
• Hebbia: AI knowledge worker platform for financial services and legal that ingests, indexes, and reasons over enterprise documents. Overlaps with Nuclia's RAG-for-legal positioning and enterprise knowledge management use cases.

Broad incumbents

• Cohere: Enterprise LLM and RAG platform offering Command models, Embed, and RAG capabilities with enterprise security. Competes with Nuclia in enterprise retrieval and grounded generation, though as a broader foundation-model-and-tools incumbent rather than a specialized RAG layer.

Regional players

• K2view: Enterprise data integration and AI platform with GenAI data fabric capabilities. Comparable to Nuclia's data unification and governed knowledge layer concept, particularly for large enterprises needing source-of-truth data products for AI grounding.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/nuclia_

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds2 records

Investors2 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Nuclia