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Iowa

* Not an exhaustive list

B | C | D | E | F | G | H | I | K | L | M | N | O | P | R | S | V | W

Bettendorf

Alcoa, Inc.

Bettendorf

Phillips Petroleum Co.

Bettendorf

Riverside Powerhouse

Burlington

Iowa Southern Utilities

Burlington

Systems Ia. Ammo Plant

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Cedar Rapids

Archer Daniels Midland Co.

Cedar Rapids

Interstate Power

Cedar Rapids

Iowa Power & Light Co.

Cedar Rapids

Lincoln Sales & Service, Inc.

Cedar Rapids

Mealey Goss Dexter

Clear Lake

Chappell Clinic

Clinton

Archer Daniels Midland

Clinton

Chemplex Corp.

Clinton

Chicago NW Railroad

Clinton

Clinton Corn Processing Co.

Clinton

Dale Dithmart Constructor

Clinton

Hawkeye Chemical

Clinton

Interstate Power & Light

Columbus Junction

Iowa Beef Packers

Council Bluffs

Iowa Power & Light

Creston

Green Valley Chemical

Cumming

Nanabijou, Inc.

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Davenport

C. Ewert Plumbing & Heating

Davenport

Hormel Foods Corp.

Davenport

Ideal Plumbing & Heating

Davenport

Iowa-Illinois Taylor Insulation

Davenport

Nicols Wire

Davenport

Northwest Plumbing

Davenport

Oscar Meyer

Davenport

Phillips Petroleum Co.

Davenport

Putman Building

Davenport

Quad-City Boiler

Davenport

Ragan Co.

Davenport

Sears Manufacturing

Davenport

Thomas Construction

Decorah

AASE Haugen Homes

Decorah

C D & Q, Inc.

Decorah

Decorah Comm School Dist.

Decorah

Lang's Dairy Equipment

Des Moines

Capital City Boiler

Des Moines

Electronic Engineering Co.

Des Moines

Iowa Power & Light

Des Moines

Pittsburg-Des Moines Steel

Des Moines

Rock Island Transit

Des Moines

Strosnider Concrete, Inc.

Des Moines

West Des Moines School District

Des Plaines

DuPont

Des Moines

Construction Products (CPI)

Des Moines

Highland Potato Chip Co.

Des Moines

Ms. Clark Foods

Des Moines

Weber Potato Chip Co.

Dubuque

Dubuque Packing

Dubuque

F I, Inc.

Dubuque

Norby Distributing

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Eddyville

Iowa Southern Utilities

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Fairfield

Pierson Plumbing & Heating

Fort Dodge

Farmland Industries

Fort Dodge

Northwoods Living, Inc.

Fort Dodge

Oil Chemical Atomic Workers

Fort Dodge

Trimark Physicians Group, Inc.

Fort Doge

New Cooperative, Inc.

Fort Madison

California Chemical

Fort Madison

Champion Paper Mill

Fort Madison

Chevron Chemical

Fort Madison

First Mississippi Corp.

Fort Madison

Sinclair Chemical

Fort Madison

Sinclair Oil & Gas Co.

Ft. Madison

First Mississippi Plant

Ft. Madison

Freuhauf

Ft. Madison

Ortho Chemical

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Grainger

St. John's

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Hiawatha

Midwest Janitorial Services

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Iowa Falls

Weldon's Construction

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Keokuk

Hubinger

Keokuk

Sheller Globe

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Lansing

Interstate Power & Light Power Plant

Lansing

Interstate Power Co.

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Marshalltown

Iowa Electric

Marshalltown

Iowa Energies

Mason

Hydro-Tile

Mason

Smith Plumbing & Heating

Mason City

HyCross Hatchery

Mason City

Mason County Powerhouse

Mason City

Matthews Machine Shop

Montpelier

Interstate Power

Mt. Joy

Caterpillar

Muscatine

Louisa Generating Station

Muscatine

Monsanto Company

Muscatine

Muscatine Power

Muscatine

Temp Associates-Marshalltown, Inc.

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New Hampton

Sara Lee

Newton

Maytag Co.

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Osage

MonRay Windows

Ottumwa

Ottumwa Boiler

Ottumwa

Ottumwa Hospital

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Palo

Duane Arnold Energy Center

Palo

Iowa Electric Light & Power Plant

Pella

Pella Municipal Power Plant

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Rudd

Hoovers Hatchery

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Salix

Iowa Public Power

Shenendoah

J & R Furniture and Carpet

Sioux City

Thompson Electric Company

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Wayland

Fred Grant Builders

Wayland

Tschantz Brothers Carpenters

West Des Moines

West Des Moines Community School Dist.

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