Where is Additive located?

Additive is headquartered in San Francisco, United States.

How many employees does Additive have?

As of May 31, 2026, the latest employee count at Additive is 22.

Is Additive a funded company?

Additive is a funded company, having raised a total of $***** in its 1st and only funding round.

Where does Additive rank among its competitors?

Additive ranks 22nd amongst 89 active competitors, of which 11 are funded. It stands 11th in terms of total funding among its competitors. The most recent competitor to raise funding was K1x, which secured $175M in Apr, 2026.

Who are the top competitors of Additive?

Additive's top competitors include K1x, HubSync and Ledgible. Among them, K1x secured the most recent funding round in April, 2026.

Additive - 2026 Company Profile, Team, Funding & Competitors

Company Details

Provider of AI-driven software for extracting tax data from documents. The software supports various tax forms and processes large tax packages. It extracts footnotes and statements, including complex tables, for review and export. The software integrates with existing workflows through an add-in and API.

Key Metrics

Founded Year

2023

Location

San Francisco, United States

Stage

Acquired

Investors

Mantis VC

Ranked

22^nd among 89 active competitors

Employee Count

22 as on May 31, 2026

Similar Companies

Cleo & 1897 more

Exit Details

Acquired by Thomson Reuters (Sep 16, 2025)

View Additive's full profile

Additive got acquired by Thomson Reuters on Sep 16, 2025.

Click here to take a look at Additive's acquisition in detail

Additive is a funded company. Additive has 1 institutional investor.

View details of Additive's funding rounds and investors

The founders of Additive is Dwight Crow.

Here are the details of Additive's key team members:

Dwight Crow: Founder at Additive.ai of Additive and founder of 1 other company.

View details of Additive's Founder profiles and Board Members

Additive's employee count trend

Additive has 22 employees as of May 26. Here is Additive's employee count trend over the years:

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Top competitors of Additive include K1x, HubSync and Ledgible. Here is the list of Top 10 competitors of Additive, ranked by Tracxn score:

Rank	Company Details	Short Description	Total Funding	Investors	Tracxn Score
1st	K1x 2022, Chicago (United States), Series B	Provider of AI-powered automation software for K-1, K-3, and 990 tax reporting	$210M	Sumeru Equity Partners, Edison Partners	56/100
2nd	HubSync 2019, Alexandria (United States), Series B	Provider of a platform for tax workflow and client management	$105M	Nashville Capital Network, Thoma Bravo	54/100
3rd	Ledgible 2014, Atlanta (United States), Series A	Provider of a platform for digital asset tax and accounting	$20M	EJF Investments, TTV Capital & 12 others	54/100
4th	Materia 2023, New York City (United States), Acquired	Provider of an AI platform for tax, audit, and accounting professionals	$6.3M	Spark Capital, Allen Institute for Artificial Intelligence ... & 3 others	42/100
5th	Juno 2023, Rancho Santa Fe (United States), Seed	AI-powered tax preparation platform for tax professionals	$12M	Bonfire Ventures, Xfund & 1 others	42/100
6th	SurePrep 2002, Irvine (United States), Acquired	Provider of tax automation software	-	Bregal Sagemount	31/100
7th	Sigma Tax Pro 2013, Delray Beach (United States), Funding Raised	Cloud-based tax preparation solutions for tax professionals	-	-	29/100
8th	SmartWiz 2023, Birmingham (United States), Seed	Tax software solution for tax professionals	$700K	Google	29/100
9th	Corvee 2015, Fort Lauderdale (United States), Series A	Tax planning software for accountants and tax professionals	$10M	-	29/100
10th	Protax 2001, New York City (United States), Unfunded	App-based tax consulting solutions for individuals and businesses	-	-	29/100
22nd	Additive 2023, San Francisco (United States), Acquired	Provider of AI-driven software for extracting tax data from documents	-	Mantis VC	27/100