Grower's Secret

OverviewSuggest Edit

The Grower’s Secret Story began in 1995 on a mushroom farm on Maui with a phone call that started a collaboration between two long time friends, Bryan Hiromoto and Wesley Chun.  Together, they identified several species of edible mushroom that produced nematicidal compounds.  One mushroom was soon found to produce a compound that significantly stimulates plant growth.  In 1998, Advanced Biological Research, LLC (ABR better known as Albert Pleus, Bryan Hiromoto, Randy Harve) was formed and the process to produce large quantities of this compound in a liquid fermentation culture was developed.  Field validation was conducted in Hawaii and by third party researchers with the support of a federal grant.  By 2003, large bioreactor incubation was established and the growth enhancer was sold commercially as Liquid Compost Factor and in retail stores such as Ace Hardware, KMart, and Long's Drugs as PGE.  

In 2010, Chaz Berman agreed to commercialize the material and ABR became Grower’s Secret, Inc.  The plant growth enhancer was rebranded as Grower’s Secret Professional (GSP), marketing efforts were expanded, and the company explored expanding the product line.  After enhancing fish emulsion with GSP, the company has added several organic fertilizers and supplements to their product line.  In 2014, we added an organic, high nitrogen fertilizer derived from soy beans called Grower’s Secret Nitrogen 13-0-0 to our family.  

By 2015, GSI added Earth Emulsion 2-3-3.  Today, we offer 4 products, all designed to sustainably increase agricultural productivity.  And we are always looking to follow in our founder's footsteps to conceive, design and produce Innovative Organic Solutions so farmers have more choices to grow sustainably.

HQConcord, US
Employee Ratings3.8

Recent NewsAll News

Latest Updates

Employees (est.) (Jun 2020)13
Cybersecurity ratingAMore

Key People/Management at Grower's Secret

Charles Berman

Charles Berman


Grower's Secret Office Locations

Grower's Secret has offices in Concord and Honolulu
Concord, US (HQ)
5143 Port Chicago Hwy suite a
Honolulu, US
1541 S Beretania St #101
Show all (2)

Grower's Secret Financials and Metrics

Summary Metrics

Founding Date


Grower's Secret total Funding

$9.6 m

Grower's Secret latest funding size

$8 m

Time since last funding

6 years ago
Grower's Secret's latest funding round in June 2014 was reported to be $8 m. In total, Grower's Secret has raised $9.6 m
Show all financial metrics

Grower's Secret Cybersecurity Score

Cybersecurity ratingPremium dataset



SecurityScorecard logo

Grower's Secret Online and Social Media Presence

Embed Graph

Grower's Secret Blogs

Holiday Wishes

Happy Holidays from all of us at Grower's Secret.

End of Year Buyer Program

Take advantage of Grower's Secret End of Year pricing. Why wait . . .  when you can have an immediate supply for your growers. 

Education Series: Potassium & Rice

Potassium Requirements and Fertilization of Rice and Irrigated SoybeansThe University of Arkansas has published a report on potassium's effects and requirement for fertilizing rice and soybeans. In this informative report learn about:

Are You Prepared For Fall Planting?

Fall planting is approaching and now is a good time to begin thinking about your needs and the amount of nutrient materials you require for this transition. With many of our materials, you can use less and save money.Ask Kim and Chuck about our current specials which will save you even m…

Ferti-Facts: Nickel

Ferti-Facts:  Nickel, It Just Makes Good “Cents” Introduction Nickel (Ni) is the 24th most abundant element in the Earth’s crust with concentrations ranging from 80 to 125 ppm. Combined with the estimated 20% Ni content of the Earth’s core, nickel jumps to the fi…
Show more

Grower's Secret Frequently Asked Questions

  • When was Grower's Secret founded?

    Grower's Secret was founded in 1998.

  • Who are Grower's Secret key executives?

    Grower's Secret's key executives are Charles Berman.

  • How many employees does Grower's Secret have?

    Grower's Secret has 13 employees.

  • Who are Grower's Secret competitors?

    Competitors of Grower's Secret include Rootility, Pines International and Enko Chem.

  • Where is Grower's Secret headquarters?

    Grower's Secret headquarters is located at 5143 Port Chicago Hwy suite a, Concord.

  • Where are Grower's Secret offices?

    Grower's Secret has offices in Concord and Honolulu.

  • How many offices does Grower's Secret have?

    Grower's Secret has 2 offices.