Ontotext Overview

  • Year Founded
  • 2000

Year Founded

  • Status
  • Private

  • Employees
  • 200

Employees

  • Latest Deal Type
  • Buyout/​LBO
  • (Announced)

  • Financing Rounds
  • 8

  • Investments
  • 1

Ontotext General Information

Description

Developer of a semantic technology platform designed to bring together metadata and content for information analysis. The company's platform utilizes knowledge graphs and automated reasoning to link unstructured data, enabling enterprise clients to identify meaning across diverse datasets and improve data management.

Contact Information

Formerly Known As
Sirma AI
Ownership Status
Privately Held (backing)
Financing Status
Private Equity-Backed
Corporate Office
  • 111R Tsarigradsko Shosse Boulevard
  • Synergy Tower, Floor 12
  • Sofia, 1784
  • Bulgaria
+359 02
Primary Industry
Database Software
Other Industries
Business/Productivity Software
Corporate Office
  • 111R Tsarigradsko Shosse Boulevard
  • Synergy Tower, Floor 12
  • Sofia, 1784
  • Bulgaria
+359 02

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Ontotext Valuation & Funding

Deal Type Date Amount Valuation/
EBITDA
Post-Val Status Debt

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Ontotext Comparisons

Description
Primary
Industry
HQ Location
Employees
Total Raised
Post Valuation
Last
Financing
Details
Developer of a semantic technology platform designed to bring together metadata and content for information analysis. Th
Database Software
Sofia, Bulgaria
200 As of 2026

New York, NY
 

Needham, MA
 
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Ontotext Competitors (30)

One of Ontotext’s 30 competitors is Stardog, a Venture Capital-Backed company based in New York, NY.

Company Name Financing Status Location Employees Total Raised Last Financing Date/Type Last Financing Amount
Stardog Venture Capital-Backed New York, NY
OpenLink Software Corporation Needham, MA
Profisee Private Equity-Backed Alpharetta, GA
Reltio Formerly VC-backed Redwood City, CA
TopQuadrant Private Equity-Backed Raleigh, NC
You’re viewing 5 of 30 competitors. Get the full list »

Ontotext Patents

Ontotext Recent Patent Activity

Publication ID Patent Title Status First Filing Date Technology (CPC) Citations
US-20140006333-A1 Correcting inferred knowledge for expired explicit knowledge Inactive 21-Jun-2012
US-20140156587-A1 Rdf data warehouse via partitioning and replication Inactive 19-Jun-2012

Ontotext Signals

Growth Rate

Weekly
Growth
Weekly Growth

Size Multiple

Median
Size Multiple

Key Data Points

Similarweb Unique Visitors

Majestic Referring Domains

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Ontotext Investors

Investor Name Investor Type Holding Investor Since Participating Rounds Contact Info

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Ontotext Investments (1)

Ontotext’s most recent deal was a Buyout/LBO with Semantic Web Company. The deal was made on 23-Oct-2024.

Company Name Deal Date Deal Type Deal Size Industry Lead Partner
Semantic Web Company 23-Oct-2024 Buyout/LBO Business/Productivity Software
To view Ontotext’s complete investments history, request access »

Ontotext Affiliates

Subsidiaries (1)

Name Industry Location Year Founded
Semantic Web Company Vienna, Austria 2004

Ontotext FAQs

  • When was Ontotext founded?

    Ontotext was founded in 2000.

  • Where is Ontotext headquartered?

    Ontotext is headquartered in Sofia, Bulgaria.

  • What is the size of Ontotext?

    Ontotext has 200 total employees.

  • What industry is Ontotext in?

    Ontotext’s primary industry is Database Software.

  • Is Ontotext a private or public company?

    Ontotext is a Private company.

  • What is Ontotext’s current revenue?

    The current revenue for Ontotext is .

  • How much funding has Ontotext raised over time?

    Ontotext has raised $3.64M.

  • Who are Ontotext’s investors?

    Korlatolf Felelossegu Tarsasag, Carpathian Partners, European Bank for Reconstruction and Development, Integral Capital Group, and Portfolion have invested in Ontotext.

  • Who are Ontotext’s competitors?

    Stardog, OpenLink Software, Profisee, Reltio, and TopQuadrant are some of the 30 competitors of Ontotext.

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