When was Diamond Foundry founded?

Diamond Foundry was founded in 2012 and became a unicorn in 2021, reaching the milestone in 9 years. It raised its 1st funding round 3 years after its incorporation.

Where is Diamond Foundry located?

Diamond Foundry is headquartered in San Francisco, United States.

Who is the current CEO of Diamond Foundry?

R Martin Roscheisen of Diamond Foundry.

How many employees does Diamond Foundry have?

As of Mar 31, 2026, the latest employee count at Diamond Foundry is 335.

Is Diamond Foundry a funded company?

Diamond Foundry is a funded company, having raised a total of $315M across 2 funding rounds to date. The company's 1st funding round was raised for an undisclosed amount in a Seed round on Nov 11, 2015.

How much is Diamond Foundry worth?

The latest valuation of Diamond Foundry is $1.8B as of Apr 27, 2021.

When was the latest funding round of Diamond Foundry?

Diamond Foundry's latest funding was a $200M Series D round on Mar 15, 2021, with participation from 1 investor.

Is Diamond Foundry a Advanced Materials company?

The primary sectors of Diamond Foundry are Advanced Materials and Analog and Mixed Signal ICs.

Where does Diamond Foundry rank among its competitors?

Diamond Foundry ranks 1st amongst 71 active competitors, of which 24 are funded. It stands 1st in terms of total funding among its competitors. The most recent competitor to raise funding was Tagore, which secured $2M in Jul, 2025.

Who are the top competitors of Diamond Foundry?

Diamond Foundry's top competitors include Cambridge GaN Devices, AGNIT Semiconductors and Wolfspeed. Among them, Tagore secured the most recent funding round in July, 2025.

Diamond Foundry - 2026 Company Profile, Team, Funding & Competitors

Diamond Foundry is a series D company based in San Francisco (United States), founded in 2012 by R Martin Roscheisen. It operates as a Technology company that specializes in creating diamonds using sustainable and eco-friendly methods. Diamond Foundry has raised $315M in funding, with a current valuation of $1.8B. The company has 71 active competitors, including 24 funded and 11 that have exited. Its top competitors include companies like Cambridge GaN Devices, AGNIT Semiconductors and Wolfspeed.

Sectors and market segments that Diamond Foundry operate in

Diamond Foundry serves in the High Tech, Chemicals and Materials Tech, Semiconductors market segments.The primary business model of Diamond Foundry are:

Company Details

Diamond Foundry is a technology company that specializes in creating diamonds using sustainable and eco-friendly methods. They offer innovative diamond wafer technology and insights.

Website: www.df.com/
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Key Metrics

Founded Year

2012

Location

San Francisco, United States

Stage

Series D

Total Funding

$315M in 2 rounds

Latest Funding Round

Series D, Mar 15, 2021, $200M

Post Money Valuation

$1.8B as on Apr 27, 2021

Investors

Future Shape & 7 more

Ranked

1^st among 71 active competitors

Employee Count

335 as on Mar 31, 2026

Similar Companies

AKHAN Semiconductor & 15 more

View Diamond Foundry's full profile

Diamond Foundry has raised a total funding of $315M over 2 rounds. Its first funding round was on Nov 11, 2015. Its latest funding round was a Series D round on Mar 15, 2021 for $200M. 1 investor participated in its latest round. Diamond Foundry has 8 institutional investors.

Here is the list of recent funding rounds of Diamond Foundry:

Date of Funding	Funding Amount	Round Name	Post-Money Valuation	Revenue Multiple	Lead Investors	Other Investors
Mar 15, 2021	$200M	Series D	$1.8B	-	-	Fidelity Investments
Nov 11, 2015	Undisclosed	Seed	-	-	-	Vast Ventures, Caspian Venture Capital

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View details of Diamond Foundry's funding rounds and investors

The founders of Diamond Foundry is R Martin Roscheisen. R Martin Roscheisen is the CEO of Diamond Foundry.

Here are the details of Diamond Foundry's key team members:

R Martin Roscheisen: Founder & CEO of Diamond Foundry and founder of 2 other companies, Nanosolar and EGroups.

View details of Diamond Foundry's Founder profiles and Board Members

Diamond Foundry's employee count trend

Diamond Foundry has 335 employees as of Mar 26. Here is Diamond Foundry's employee count trend over the years:

Employee count trend for Diamond Foundry

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Top competitors of Diamond Foundry include Cambridge GaN Devices, AGNIT Semiconductors and Wolfspeed. Here is the list of Top 10 competitors of Diamond Foundry, ranked by Tracxn score:

Rank	Company Details	Short Description	Total Funding	Investors	Tracxn Score
1st	Diamond Foundry 2012, San Francisco (United States), Series D	Technology company that specializes in creating diamonds using sustainable and eco-friendly methods	$315M	Future Shape, Fidelity Investments & 6 others	57/100
2nd	Cambridge GaN Devices 2016, Taiwan, Series C	Developer of gallium nitride transistors and semiconductors for power electronics	$60M	Parkwalk, BGF & 26 others	65/100
3rd	AGNIT Semiconductors 2019, Bengaluru (India), Seed	Manufacturer of gallium nitride (GaN) semiconductors for radio-frequency applications	$4.87M	3one4 Capital, Zephyr Peacock & 2 others	59/100
4th	Wolfspeed 2015, Durham (United States), Public	Provider of radio frequency-based ICs	-	JANA Partners, Benson Family Private Equity ... & 2 others	58/100
5th	AXT 1986, Fremont (United States), Public	Compound semiconductor substrate manufacturers	-	Herald Investment Management, Fortune Venture Investment Group ... Read more	55/100
6th	HexaTech 2001, United States, Series B	Manufacturer of high-quality aluminum nitride substrates for semiconductor devices	$11.6M	Intersouth Partners, H.I.G. Capital & 4 others	54/100
7th	Tagore 2011, Arlington Heights (United States), Series A	Provider of GaN semiconductor technology for RF and power applications	$8.69M	Celesta Capital, America’s Seed Fund	53/100
8th	Flosfia 2011, Kyoto (Japan), Series C	Developer of gallium oxide power semiconductors and thin film deposition solutions	$14.2M	Energy & Environment Investment, Mirai Creation Fund ... & 8 others	52/100
9th	AKHAN Semiconductor 2012, Gurnee (United States), Series B	Provider of synthetic diamond materials for the semiconductor industry	$25.7M	-	51/100
10th	Pallidus 2015, Houston (United States), Series B	Innovating silicon carbide wafer technology for next-generation power electronics applications	$94.6M	Raptor Group	49/100