Brewery (Number of groups) (Click a Brewer to view coasters)	Sort by code	Sort by Production Dates *RED = CLOSED*	Sort by city	Sort by count
Madhouse Brewing	IA-MAD	2010-2019	Newton	14
Magnus Brewing Company	IA-MAGN	1889-1916	Cedar Rapids	5
Maquoketa Brewing	IA-MAQU	2021-	Maquoketa	1
Marto Brewing Co.	IA-MART	2019-	Sioux City	4
Mason City Brewing	IA-MASC	2013-	Mason City	1
Millstream Brewing Co.	IA-MILL	1985-	Amana	156
Mistress Brewing Co.	IA-MIST	2016-2022	Ankeny	30
Moehn's Western Brewery	IA-MOEH	1892-1915	Burlington	5
Iowa brewers with coasters:				8
Alternate brewer referencess:
total record count:				8