Latka logo

Top 29 Plagiarism Checker Software SaaS Companies in May 2026

As of May 2026, there are 29 SaaS companies in Plagiarism Checker Software. They have combined revenues of $288.8M and employ 2.5K people. They have raised - and serve - customers combined.

Plagiarism Checker Software is designed to identify instances of plagiarism within text documents by comparing submissions against various databases and online resources. This software is widely used within educational institutions, publishing houses, and businesses that require the verification of original content. Typical features include text comparison algorithms, reports detailing matched content, and tools for citation assistance to help users maintain academic integrity and ensure proper attribution of sources. These tools are essential for educators to uphold standards of academic honesty, allowing them to detect potential cheating as well as unintentional plagiarism. In publishing, they assist in maintaining originality while evaluating manuscripts. Common users of this software include teachers, students, academic institutions, publishers, and content creators seeking to verify the originality of their work, thus preventing legal and reputational risks associated with plagiarism.

Companies
29
Revenue
$288.8M
Funding
-
Employees
2.5K

Filters

Sorting: Highest -> Lowest

Filters

Top Plagiarism Checker Software Companies

Showing 10 of 7 companies ranked by annual revenue.

1
Compilatio

Chavanod, Auvergne-Rhône-Alpes, France

Compilatio is a leader in developing the culture of integrity. We support teachers, students and writing professionals on a daily basis to - Detect similarities and AI-generated content - Prevent plagiarism and ghostwriting - Take action for authenticity For more information about our services, please visit the product section or visit our website: https://www.compilatio.net/en

Revenue
$4.4M
Customers
-
Year founded
2005
Funding
-
Team size
40
Growth
-
2
Silk Data

Warsaw, Masovian Voivodeship, Poland

Silk Data was founded by PhD-titled experts with 80 years of combined academic and business experience, to help companies automate routine tasks and improve their digital products through AI-based technology of human language understanding. We provide ready-made and build custom software solutions that challenge the following tasks: - text understanding and analytics - extraction of insights, key data, and personal information out of texts - classification and categorization of documents and other textual content - giving personalized content recommendations - finding semantically similar stuff, and etc. Companies from legal, regulation, research, marketing domains trust our expertise as well as publishing houses, online retail, and software providers. Please reach out via LinkedIn or [email protected] to ask for a demo or a free consultancy.

Revenue
$3.7M
Customers
-
Year founded
2013
Funding
-
Team size
34
Growth
-
3
Resonance Technology

Singapore, Singapore

We craft delightful software. Like building a great product, our software is honest, simple, purposeful, and elegantly designed so that it can be useful for its end users worldwide. Resonance Technology aspires to build a company where employees are empowered to explore, learn, and perform at their highest capacity when delivering the best.

Revenue
$3M
Customers
-
Year founded
2018
Funding
-
Team size
27
Growth
-
4
Smodin

Casper, Wyoming, United States

We’re changing the EdTech space with intuitive AI writing tools to help students, content creators, and teachers reach their full potential. Smodin is a multilingual company focused on addressing the largest learning challenges facing students. Our mission is to provide users with intelligent technology that boosts their productivity and understanding. We offer a wide range of tools, including our industry-leading AI detector, our rewriter and humanizer tools, plagiarism detectors, and homework solvers that make writing as stress-free as possible. Created in 2017, Smodin started from founder Kevin Danikowski’s belief that every student or writer could excel with the right tools. Over five different careers and countless hours working with students of all abilities, he saw the same learning roadblocks come up again and again. One of the biggest hurdles? Writing an essay. This inspired him to create Smodin’s first tool: the Essay Writer. From there, Smodin built additional tools to speed up content creation—like a citation generator, text summarizer, and tools to detect and bypass AI. Today, Smodin serves millions of students, writers, and educators in 40+ languages.

Revenue
$1.5M
Customers
-
Year founded
2017
Funding
-
Team size
14
Growth
-
5
Prepostseo

Faisalabad, Punjab, Pakistan

By Developing 175+ online tools for students, writers and SEO experts, PREPOSTSEO is one of the top free tools websites.

Revenue
$1.4M
Customers
-
Year founded
-
Funding
-
Team size
13
Growth
-
6
Advacheck

Tallinn, Harjumaa, Estonia

Advacheck secures academic integrity for universities by detecting exact word matches and synonym swapping. Its advanced algorithms conduct a comprehensive internet search to deliver accurate and focused results.

Revenue
$1.2M
Customers
-
Year founded
-
Funding
-
Team size
11
Growth
-
7
PlagiarismCheck.org

Bromley, Kent, United Kingdom

Inspired by educators who seek better solutions for focusing on helping students to succeed, we developed a modern similarity detection software. An advanced algorithm that catches text manipulations, grammar mistakes, and verifies authorship to prevent academic dishonesty. Easily integrated with the most popular LMS, it provides data on students' and institutions' success. Join us for a demo by clicking Learn more

Revenue
$1.1M
Customers
-
Year founded
2015
Funding
-
Team size
10
Growth
-

Inclusion Criteria

- The software must provide mechanisms for detecting copied or closely paraphrased content. - It should offer reports that detail both matched content and possible sources. - The solution must be suitable for use in academic settings, such as schools and universities. - It must support various document formats for upload and analysis. - Not just a basic text comparison tool; must also provide deeper analysis features like citation assistance or checking against multiple databases.