Riley Heating and Cooling (PHCC) · Lucas
Reliable 1 Heating Air Conditioning and Plumbing (PHCC) · Iowa Falls
Olsem Plumbing (PHCC) · Carroll
Oehl Plumbing & Heating (PHCC) · Amana
Mort's Plumbing & Heating (PHCC) · Iowa Falls
Mooney Heating & Cooling Inc (PHCC) · Marion
Monti Plumbing Heating & Electrical (PHCC) · Monticello
Molo Companies (PHCC) · West Des Moines
Moeller Furnace Co Inc (PHCC) · Fort Dodge
MGM Plumbing Heating and AC (PHCC) · Sac City
Master Plumbing, Heating & Cooling (PHCC) · Cedar Rapids
Mark's Plumbing and Heating (PHCC) · Sutherland
M & N Heating and Cooling (PHCC) · Rockwell
M & P Mechanical (PHCC) · Washington
Lins Heating and AC (PHCC) · Cedar Rapids
Kuenster Heating & Air (PHCC) · Kalona
Lane Plumbing & Heating Inc (PHCC) · Mount Union
Kelly Heating & Air (PHCC) · Iowa City
K & S Construction (PHCC) · West Branch
JP Plumbing & Heating (PHCC) · Marion
John's Heating & Air Conditioning Services LLC (PHCC) · Stanton
Jensen Heating & Air Conditioning (PHCC) · Grinnell
Joe & Matt's Plumbing and HVAC (PHCC) · Waukon
J & S Plumbing Heating & Air Conditioning (PHCC) · Kalona
Iowa's All Season Heating & Cooling (PHCC) · Waukee
Indianola Mechanical LLC (PHCC) · Indianola
Holt Plumbing & Heating (PHCC) · West Des Moines
Hadley Hardware, Inc (PHCC) · Richland
Graber Heating & Air Conditioning Inc (PHCC) · Kalona
General Parts LLC (PHCC) · Urbandale
Fred's Plumbing and Heating (PHCC) · Hospers
Freiburger Heating and Cooling (PHCC) · Dubuque
Fiedler HVAC (PHCC) · Libertyville
Fosters Kraus Mechanical Group Inc (PHCC) · Marion
Ehlen Plumbing & Heating Inc (PHCC) · Belle Plaine
Edwards Plumbing & Heating (PHCC) · Vinton
EC Mechanical (PHCC) · Storm Lake
Demmer Mechanical Corp (PHCC) · Dyersville
Country Heating & Cooling (PHCC) · Milo
Colony Heating & Cooling (PHCC) · Cedar Rapids
Casper Plumbing & Heating (PHCC) · Decorah
Caswell Plumbing Heating & Air Conditioning LLC (PHCC) · Inwood
Bunch Heating and Cooling (PHCC) · Marion
C and K Heating & Cooling (PHCC) · Ames
Boge Mechanical Systems LLC (PHCC) · Dyersville
Bill Jensen Heating & Cooling LLC (PHCC) · Winterset
Best Plumbing & Bath (PHCC) · Marion
Benson Heating & Air Conditioning (PHCC) · Eldon
Belland Plumbing & Heating (PHCC) · WIilliamsburg
Baxter Heating & Air (PHCC) · Baxter
Action Plus Plumbing Heating & Cooling (PHCC) · Bondurant
Albaugh PHC Inc (PHCC) · Tipton
A2Z Heating and Plumbing (PHCC) · Iowa City
Meskwaki Nation · Tama
Marv Smith Electric, Plumbing & Heating LLC (PHCC) · Fort Atkinson
HOMETOWN MECHANICAL (ABC) · DAVENPORT
DORRIAN HEATING AND COOLING, INC. (ABC) · WAUKEE
WYCKOFF HEATING & COOLING (THE CEU AUTHORITY) · CARLISLE
Venteicher Heating and Air Conditioning LLC (CEU AUTHORITY) · Riverside
ASPEN AIRE (THE CEU AUTHORITY) · ANKENY
PLAINS MECHANICAL SERVICES (CEU AUTHORITY) · SIOUX CITY
BEST HEATING, COOLING, AND ELECTRIC (CEU) · DES MOINES
BIRCH HEATING AND COOLING (CEU AUTHORITY) · DUBUQUE
8 FINGER HVAC (THE CEU AUTHORITY) · Martelle
INTEGRITY COMFORT SOLUTIONS, INC. (CEU) · Pella
Western Iowa Tech Community College · SIOUX CITY
TOTAL COMFORT GROUP (THE CEU AUTHORITY) · CLLIVE
Sawhill HVAC, LLC (ABC) · Ankeny
Family Heating & Cooling · Davenport
Iowa Western Community College · Council Bluffs
Metro Heating & Cooling, Inc. (CEU) · DES MOINES
GREENS APPLIANCE HEATING AND COOLING, INC. (CEU AUTHORITY) · DES MOINES
DES MOINES AREA COMMUNITY COLLEGE (CEU AUTHORITY) · Ankeny
AMERICAN MECHANICAL (ABC) · GRIMES
CW Suter · SIOUX CITY
HEARTLAND HEATING & COOLING (THE CEU AUTHORITY) · GRIMES
Rabe Hardware · Blairstown
Affordable Heating & Cooling · Anamosa
Lynn Furnace Heating & Cooling · Shenandoah
ADVANCED PLUMBING & HEATING, LLC (THE CEU AUTHORITY) · ORANGE CITY
Feick's Plumbing & Services (CEU) · Greenfield
Lenz Mechanical (CEU) · Urbandale
Pierson and Pierson (CEU) · Fairfield
C & D Refrigeration (CEU) · SPENCER
JOHNSON PROPANE HEATING & COOLING (THE CEU AUTHORITY) · BATTLE CREEK
515 Mechanical LLC (CEU) · Colfax
Prins Plumbing & Heating Inc. (CEU) · Hartley
BETH & KELLY, INC. DBA BENJAMIN FRANKLIN PLUMBING (THE CEU AUTHORITY) · AMES
Nally Plumbing & Heating (The CEU Authority) · Braddyville
Christians Sheetmetal, HVAC, Inc. · SPENCER
RJS Plumbing & Heating, Inc. (CEU) · CORNING
Midwest Comfort (CEU) · Des Moines
PRECISION AIR (THE CEU AUTHORITY) · ELDRIDGE
NORTH IOWA MECHANICAL LLC (CEU) · ALGONA
Gilbert Home Comfort · LEON
Central Iowa Sheet Metal Workers JATC LU 45 · DES MOINES
Anderson Mechanical Corporation (ABC) · PELLA
COMPLETE CONSTRUCTION SERVICES PLUMBING, HVAC & ELECTRICAL (THE CEU AUTHORITY) · Oskaloosa
Travis Mechanical & Controls, LLC (ABC) · Chariton
ODESSA MECHANICAL CONTRACTING INC. (THE CEU AUTHORITY) · Wapello
Beeline Heating and Cooling (ABC) · Ames
ADAMS PLUMBING & HEATING (THE CEU AUTHORITY) · OSAGE
KAPAUN & BROWN, INC. (ABC) · MARSHALLTOWN
KASPERBAUER SERVICE, INC. (ABC) · VAIL
Bell Brothers Heating and Air Conditioning, Inc. (ABC) · DES MOINES
CUNNINGHAM INC. (ABC) · Oskaloosa
BROOKWOOD INC. (ABC) · NEWTON
72 DEGREES HEATING & COOLING (ABC) · ANKENY
CLIMATE SOLUTIONS, INC (ABC) · Carroll
C & W SERVICES · EDDYVILLE
REMSBURG SERVICE, INC. (ABC) · Audubon
Obsidian Heating and Cooling (CEU) · Ankeny
Hawk-I Plumbing, Inc. · Storm Lake
NORTHEAST IOWA MECHANICAL SYSTEMS (THE CEU AUTHORITY) · ELGIN
CHARLOTTE PLUMBING, HEATING, & A/C (ABC) · CHARLOTTE
MINCKS HEATING AND AC (CEU) · BLOOMFIELD
CHOWN APPLIANCE (ABC) · NICHOLS
Direct Heating and Air LLC (ABC) · Altoona
OAKLEAF PROPERTY MANAGEMENT (CEU AUTHORITY) · SIOUX CITY
EXIRA PLUMBING, HEATING, AND ELECTRICAL, LLC (THE CEU AUTHORITY) · EXIRA
ALL SEASONS HVAC (ABC) · DES MOINES
Miller Mechanical (ABC) · Indianola
JORGENSEN ENTERPRISES, IN.C. DBA ALPHA & OMEGA (CEU) · HARLAN
Plumbers & Pipe Fitters JATC Local Union 125 · Cedar Rapids
Snyder Plumbing, Cooling, and Heating, LLC (CEU) · Stockport
Midwestern Mechanical · SPENCER
Geisler Builders · CEDAR FALLS
Vandemark Heating & Cooling · Woodbine
Frigitec Inc. · STORM LAKE
Carolan Builders · CEDAR FALLS
Iowa Department of Corrections · DES MOINES
Bergen Plumbing, Heating, & Cooling Inc. (BHSA) · WATERLOO
Barnhart Electric · IOWA FALLS
Service Legends · DES MOINES
Missouri Valley Sheet Metal, Inc. (CEU) · Logan
Loftus Heating and Air Conditioning · Logan
Kiers Plumbing & Heating, LLC. (CEU) · Hull
Modern Heating Inc. (CEU) · Cherokee
Sloan Plumbing and Heating and A/C (CEU) · Jefferson
VANS HEATING AND COOLING (ABC) · Stuart
LINAHON ELECTRIC, INC. (ABC) · MASON CITY
CHAS W GOERING (ABC) · GRIMES
MANAGEMENT PROFESSIONALS, INC. (ABC) · WEST DES MOINES
KOHLES & BACH, INC. (ABC) · JOHNSTON
FAREWAY STORES, INC. (ABC) · BOONE
WARNICK, INC. dba WARNICK MECHANICAL (ABC) · NEWTON
COMMERCIAL SERVICE INNOVATION (ABC) · BONDURANT
Pinnacle Heating & Cooling · Sioux City
RHINER'S PLUMBING, HEATING & COOLING. (ABC) · CLIVE
Bell Brothers Heating and Air Conditioning, Inc. · Des Moines
RJ Nelson Co · Council Bluffs
SANDEGRENS HEATING & AIR CONDITIONING · Ottumwa
BROOKER CORPORATION (ABC) · Newton
COMFORT SYSTEMS INC. (ABC) · DES MOINES
Baxter Heating & Air (CEU) · Baxter
Days Heating and Air · Bloomfield
ADVANTAGE SHEET METAL (ABC) · Dubuque
DREES COMPANY (ABC) · CARROLL
DAHL AIR CONDITIONING & HEATING, LLC (ABC) · VAN METER
CELLSITE SOLUTIONS, LLC (ABC) · CEDAR RAPIDS
DICKERSON MECHANICAL, INC (ABC) · COLFAX
MECHANICAL AIR SYSTEMS COMPANY (ABC) · MASON CITY
KINSETH PLUMBING AND HEATING (ABC) · BELMOND
G & H ELECTRIC (ABC) · ATKINS
E & J ELECTRIC (ABC) · SOLON
DW Mechanical Inc (ABC) · LYNNVILLE
B & J ELECTRIC (ABC) · GRAND MOUND
AIR CONTROL INC (ABC) · CLINTON
AIR COMFORT INC. (ABC) · CEDAR RAPIDS
WALSTRA PLUMBING & HEATING, INC. (ABC) · SIOUX CENTER
LONEMAN ELECTRIC & PLUMBING (ABC) · CARROLL
JOHNSON'S HEAT, A/C & REFRIGERATION INC. (ABC) · OSKALOOSA
H-H INC OF IOWA (ABC) · West Des Moines
DAN KELLY HEATING & COOLING INC. (ABC) · Muscatine
PRITCHARD BROS (ABC) · BOONE
HONEST HEATING AND COOLING, INC. (CEU AUTHORITY) · ALBION
STEIN HEATING & COOLING INC (CEU AUTHORITY) · WEBSTER CITY
WM. J. KRAUS & SON, INC. (THE CEU AUTHORITY) · KEOKUK
LYNCH HEATING AND PLUMBING (CEU AUTHORITY) · DAVENPORT
TOM'S PLUMBING AND HEATING, LLC (CEU AUTHORITY) · ARNOLDS PARK
4-M PLUMBING AND HEATING (THE CEU AUTHORITY) · Washington
RHA SERVICES · CLINTON
Kohles Mechanical Inc. (CEU) · Johnston
JONES MECHANICAL. INC. · RED OAK
DAN'S PLUMBING & HEATING, LLC (CEU) · Knoxville
SMITH HEATING & PLUMBING, INC. · WIOTA
HAMBURG ELECTRIC · HAMBURG
GLOBAL HEATING AND AC (THE CEU AUTHORITY) · CEDAR RAPIDS
MECHANICAL SALES IOWA, INC. (CEU) · Johnston
ROBERTS HEATING, COOLING AND PLUMBING (ABC) · Carlisle
REDMOND HVAC LLC. (ABC) · Ames
PROCTOR CORPORATION DBA PROCTOR MECHANICAL (ABC) · West Des Moines
CONVERSE CONDITIONED AIR (ABC) · AMES
MECHANICAL COMFORT, INC. (ABC) · Ames
AAA REFRIGERATION, LLC. dba DOVEL REFRIGERATION · Red Oak
SCHUSTER HEATING & PUMP CO., INC. (ABC) · Peosta
City Wide Heating & Air Conditioning, Inc (THE CEU AUTHORITY) · Windsor Heights
A&A Lakeside PHC LLC (THE CEU Authority) · Estherville
Advanced Heating & Air Conditioning (THE CEU AUTHORITY) · Fort Dodge
SAC & FOX TRIBE OF THE MISSISSIPPI IN IOWA - MESKWAKI NATION APPRENTICESHIP (ABC) · Tama
SOLON HEATING AND AIR CONDITIONING INC (THE CEU AUTHORITY) · Solon
Western Iowa Technical Community College · Sioux City
KRUCK PLUMBING & HEATING CO., INC. (ABC) · BOONE
POLK COUNTY HEATING AND COOLING, INC.(ABC) · POLK CITY
LOZIER HEATING AND COOLING (ABC) · WEST DES MOINES
HARDONS, INC. (ABC) · TAMA
CAMBLIN MECHANICAL INC. (ABC) · ATLANTIC
BROCKWAY MECHANICAL (ABC) · BURLINGTON
ALL SEASONS HEATING & COOLING INC. (ABC) · DUBUQUE
ACI MECHANICAL, INC. (ABC) · AMES
LOA HVAC SERVICES (ABC) · Des Moines
ALLENSWORTH HEATING AND COOLING (THE CEU AUTHORITY) · RED OAK
MAURER MECHANICAL (THE CEU AUTHORITY) · Des Moines
NORTH CENTRAL IOWA SERVICE (CEU AUTHORITY) · HUMBOLT
A PLUS SERVICE PLUMBING & HVAC, LLV (THE CEU AUTHORITY) · OTTUMWA
EAGAN MECHANICAL (THE CEU AUTHORITY) · MANCHESTER
JERNS HEATING AND AIR (THE CEU AUTHORITY) · West Burlington
JONES HEATING COOLING PLUMBING (THE CEU AUTHORITY) · Emmetsburg
VANDERLINDEN SERVICE (THE CEU AUTHORITY) · Leighton
BIANCHI HEATING & COOLING (THE CEU AUTHORITY) · Fort Dodge
ARNOLD MOTOR SUPPLY (THE CEU AUTHORITY) · Spencer
COMFORTEC INC (THE CEU AUTHORITY) · SPIRIT LAKE
EILANDER ENTERPRISES (THE CEU AUTHORITY) · Montezuma
MILLER ELECTRIC (THE CEU AUTHORITY) · INDIANOLA
I FAMILY HVAC INC (CEU AUTHORITY) · SPIRIT LAKE
PRECISION COMFORT (THE CEU AUTHORITY) · Runnells
HARDEN BROS PROPANE INC (THE CEU AUTHORITY) · Victor
VANDERPOOL CONTRACTING (THE CEU AUTHORITY) · Prole
SOLL'S SERVICE, INC. (ABC) · MANNING
AMES HEATING AND COOLING (ABC) · AMES
Cordray Heating and Cooling, LLC. · Fort Madison
KENNY'S SERVICE (THE CEU AUTHORITY) · Osage
BEST HVAC, LLC (THE CEU AUTHORITY) · Bettendorf
MILLER PLUMBING HEATING & ELECTRIC (ABC) · Menlo
ERVIN'S INCORPORATED (THE CEU AUTHORITY) · Wilton
Frantz & Gray Enterprises, LLC. (The CEU Authority) · Clarinda
TORKELSON PLUMBING & HEATING INC (The CEU AUTHORITY) · Forest City
D & L PLUMBING & HEATING, INC. (ABC) · ORANGE CITY
SEILER APPLIANCE, INC. (ABC) · POCAHONTAS
Big Mike's Custom Bath & HVAC, LLC · Clear Lake
LEON PLUMBING & HEATING (The CEU Authority) · Leon
TJARKS PLUMBING & HEATING (The CEU AUTHORITY) · Iowa Falls
AIRTECH LLC (THE CEU AUTHORITY) · Johnston
REEVES HEATING AND COOLING INC. (ABC) · NEWTON
LESTER MECHANICAL LLC (THE CEU AUTHORITY) · NEVADA
OLDSONS PLUMBING (THE CEU AUTHORITY) · Eagle Grove
IOWA ALL PRO HEATING & COOLING LLC (THE CEU AUTHORITY) · DES MOINES
4 SEASONS PHC (THE CEU AUTHORITY) · ALTA
BEDWELL BUILDERS (THE CEU AUTHORITY) · ST. CHARLES
DUITSMAN PLUMBING AND HEATING LLC (THE CEU AUTHORITY) · ESTHERVILLE
VAN'S ELECTRIC & CONSTRUCTION INC (THE CEU AUTHORITY) · NEW SHARON
MOSER MECHANICAL LLC (THE CEU AUTHORITY) · Colesburg
MUNYON PLUMBING & HEATING (THE CEU AUTHORITY) · KELLERTON
PRECISION PLUMBING, HEATING & COOLING (THE CEU AUTHORITY) · Centerville
BAUER PLUMBING & HEATING (THE CEU AUTHORITY) · EMMETSBURG
LEKWA HEATING AND COOLING (THE CEU AUTHORITY) · STORY CITY
DAYTON HEATING & AIR CONDITIONING (THE CEU AUTHORITY) · URBANDALE
B & G HVAC (THE CEU AUTHORITY) · MARSHALLTOWN
BAKER HEATING & COOLING LLC (THE CEU AUTHORITY) · REDFIELD
MEREDITH OPERATIONS CORP (THE CEU AUTHORITY) · DES MOINES
POLK COUNTY GOVERNMENT (THE CEU AUTHORITY) · DES MOINES
CARROLL CONTROL SYSTEMS, INC (CEU AUTHORITY) · CARROLL
EXCEL PLUMBING & HEATING LLC (CEU AUTHORITY) · ESTERVILLE
KLOEWER PLUMBING, HEATING AND AIR INC. (ABC) · DEFIANCE
Housers Air Conditioning and Heating Service · Glenwood
DES MOINES COMFORT, INC. (CEU AUTHORITY) · DES MOINES
MCCOY PLUMBING AND HEATING (THE CEU AUTHORITY) · OLDS
A1 MORRIS HEATING AND COOLING (THE CEU AUTHORITY) · DAVENPORT
E & J GEOTHERMAL, INC. (CEU AUTHORITY) · SOLON
NEXT GENERATION PLUMBING AND HEATING (CEU AUTHORITY) · MONTICELLO
AFFORDABLE SERVICES (CEU AUTHORITY) · OSKALOOSA
AREGUIN HEATING AND COOLING, LLC (CEU AUTHORITY) · MUSCATINE
FOPS, LLC (CEU AUTHORITY) · DAVENPORT
LEET'S REFRIGERATION (CEU AUTHORITY) · RIVERSIDE
MB ENTERPRISES DBA NEIGHBORS (CEU AUTHOITY) · AMES
CALLAWAY MECHANICAL (CEU AUTHORITY) · MT PLEASANT
NORTHWAY'S HEATING & COOLING (CEU AUTHORITY) · DES MOINES
NELSON'S PLUMBING, HEATING & ELECTRIC (CEU AUTHORITY) · FOREST CITY
MURPHY'S HEATING & PLUMBING, INC. (CEU AUTHORITY) · HAMPTON
JASON SMITH PLUMBING, HEATING AND COOLING (CEU AUTHORITY) · MT PLEASANT
RIVER CITIES HEATING, AIR CONDITIONING AND REFRIGERATION (CEU AUTHORITY) · SABULA
DES MOINES HEATING AND COOLING (CEU AUTHORITY) · DES MOINES
MODERN MECHANICAL (CEU AUTHORITY) · DES MOINES
KNOBBE PLUMBING AND HVAC (CEU AUTHORITY) · CARROLL
ETHINGTON HEATING AND COOLING, INC. (CEU AUTHORITY) · MARSHALLTOWN
LAKEPORT HEATING AND COOLING (CEU AUTHORITY) · SLOAN
LEMKE REPAIR (THE CEU AUTHORITY) · GUTHRIE CENTER
SERVICE ONE (CEU AUTHORITY) · DUBUQUE
B & K PLUMBING, HEATING, LLC (THE CEU AUTHORITY) · PRIMGHAR
J&N ELECTRIC LLC (THE CEU AUTHORITY) · OTTUMWA
SP HEATING AND COOLING (THE CEU AUTHORITY) · SHELDON
POTS PLUMBING AND HEATING (THE CEU AUTHORITY) · ACKLEY
HINDMAN & PERSON HEATING AND AC (THE CEU AUTHORITY) · OTTUMWA

Application windows open and close on each sponsor's schedule. Contact the sponsor directly to verify program details and apprenticeship-window timing before applying — eligibility and intake calendars vary by program and year.