Open source focus

Open Source Alternatives to Grant Thornton

4 open source Assurance options similar to Grant Thornton, ranked by named competitors first, sector overlap, and our 0-100 AI-readiness score. Each profile notes license and self-hosting where we have it.

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April57
FintechNew York, United States$78.0M
Open source
Centora30
AccountingLeatherhead, United Kingdom
Open source
Marssian14
FintechTel Aviv, Israel
Open source
ER
ERPNext0
Enterprise SoftwareBangalore, India
Open source · Self-hostable

Company	Sector	License	HQ	Funding	Score
April	Fintech	Open source	New York, United States	$78.0M	57
Centora	Accounting	Open source	Leatherhead, United Kingdom	—	30
Marssian	Fintech	Open source	Tel Aviv, Israel	—	14
ERERPNext	Enterprise Software	Open source · Self-hostable	Bangalore, India	—	0