I'm looking at information on a report about the global market for teff:

Global Teff Market Development Strategy Pre and Post COVID-19, by Corporate Strategy Analysis, Landscape, Type, Application, and Leading 20 Countries (360 Research Report, 27 April 2021)
https://www.360researchreports.com/global-teff-market-18118305
&
Teff Market 2021 : Corporate Strategy Analysis, Competitive Landscape, Definition, Future Development Status with Top 20 Countries Data (News Channel Nebraska Central, 27 July 2021)
https://central.newschannelnebraska.com/story/44391472/teff-market-2021-corporate-strategy-analysis-competitive-landscape-definition-future-development-status-with-top-20-countries-data

The actual report is extremely expensive unless one can get a sample copy...

Among interesting tidbits (teasers) from the articles is a list of "Major Players in Teff market":
* Conagra Brands Inc.
* SHILOH FARMS
* Amandin Organic Products
* CERES ORGANICS
* Tobia Teff, THE TEFF COMPANY
* Love Grain
* Mama Fresh Injera PLC
* Bob’s Red Mill Natural Foods
* PROBIOS S.p.A.

Curiously, the list of countries covered does not include the main producers, Ethiopia and Eritrea. The US & Canada are the North American countries in this list.

An academic article may complement the above in geographic focus and information:
Hyejin Lee, 2018, "Teff, A Rising Global Crop: Current Status of Teff Production and Value Chain," The Open Agriculture Journal, 12: 185-193
https://openagriculturejournal.com/VOLUME/12/PAGE/185/FULLTEXT/