Where is Additive located?

Additive is headquartered in San Francisco, United States.

How many employees does Additive have?

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

Where does Additive rank among its competitors?

Additive ranks 7th amongst 102 active competitors, of which 12 are funded. It stands 8th in terms of total funding among its competitors. The most recent competitor to raise funding was Byron, which secured $9.1M in Jun, 2026.

Who are the top competitors of Additive?

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

7^th among 102 active competitors

Employee Count

22 as on Jul 31, 2026

Similar Companies

Cleo & 2172 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 are Venky Iyer and Dwight Crow.

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

Venky Iyer: Co-Founder of Additive.
Dwight Crow: Founder of Additive.

View details of Additive's Founder profiles and Board Members

Additive's employee count trend

Additive has 22 employees as of Jul 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, Morristown (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, TechSquare Labs & 13 others	53/100
4th	Juno 2023, Rancho Santa Fe (United States), Seed	AI-powered tax preparation platform for tax professionals	$12M	Bonfire Ventures, Xfund & 1 others	49/100
5th	Materia 2023, New York City (United States), Acquired	Provider of an AI platform for tax, audit, and accounting professionals	$6.3M	Spark Capital, Haystack & 3 others	42/100
6th	Byron 2025, San Francisco (United States), Seed	Developer of artificial intelligence agents for business tax return preparation	$9.1M	Square Peg Ventures, Sorenson Capital & 2 others	37/100
7th	Additive 2023, San Francisco (United States), Acquired	Provider of AI-driven software for extracting tax data from documents	-	Mantis VC	34/100
8th	SurePrep 2002, Irvine (United States), Acquired	Provider of tax automation software	-	Bregal Sagemount	31/100
9th	Sigma Tax Pro 2013, Delray Beach (United States), Funding Raised	Cloud-based tax preparation solutions for tax professionals	-	-	29/100
10th	SmartWiz 2023, Birmingham (United States), Seed	Tax software solution for tax professionals	$700K	Google	29/100