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Federal Contractors
We found 551 contractors.
1 2 3| Contractor | Zip |
|---|---|
| 42/40 ARCHITECTURE INCORPORATED CHICAGO, IL Professional, Scientific, and Technical Services : Architectural Services | 60604 |
| A E A LABORATORIES INC MORTON GROVE, IL Professional, Scientific, and Technical Services : Testing Laboratories | 60053 |
| AAR CORP. WOOD DALE, IL Professional, Scientific, and Technical Services : Engineering Services | 60191 |
| ACCREDITATION ASSOCIATION FOR AMBULATORY HEALTH CARE, INC. SKOKIE, IL Professional, Scientific, and Technical Services : All Other Professional, Scientific, and Technical Services | 60077 |
| ACCUITY INC. SKOKIE, IL Professional, Scientific, and Technical Services : Custom Computer Programming Services | 60076 |
| ACE AND ACME CONSULTING EVANSTON, IL Professional, Scientific, and Technical Services : Engineering Services | 60201 |
| ACGT INCORPORATED WHEELING, IL Professional, Scientific, and Technical Services : Testing Laboratories | 60090 |
| ACTIONFRONT DATA RECOVERY LABS SCHAUMBURG, IL Professional, Scientific, and Technical Services : Custom Computer Programming Services | 60173 |
| ADVANCE ELECTRONIC INSTRUMENTS, INC CHICAGO, IL Professional, Scientific, and Technical Services : Environmental Consulting Services | 60607 |
| ADVANCED HORIZONS INC ELMHURST, IL Professional, Scientific, and Technical Services : Computer Systems Design Services | 60126 |
| ADVANCED INTEGRATED SOFTWARE TECHNOLOGY CHICAGO, IL Professional, Scientific, and Technical Services : Computer Facilities Management Services | 60653 |
| ADVANCED LIFE SCIENCES INC WOODRIDGE, IL Professional, Scientific, and Technical Services : Research and Development in Biotechnology | 60517 |
| AECOM RESERVOIR DESIGN PARTNER CHICAGO, IL Professional, Scientific, and Technical Services : Engineering Services | 60601 |
| AJ RHEM AND ASSOCIATES INCORPORATED CHICAGO, IL Professional, Scientific, and Technical Services : Other Computer Related Services | 60606 |
| ALEXETER TECHNOLOGIES, LLC WHEELING, IL Professional, Scientific, and Technical Services | 60090 |
| ALION IPS CORPORATION CHICAGO, IL Professional, Scientific, and Technical Services : Engineering Services | 60616 |
| ALION SCIENCE AND TECHNOLOGY C CHICAGO, IL Professional, Scientific, and Technical Services | 60616 |
| ALION-CATI CORPORATION CHICAGO, IL Professional, Scientific, and Technical Services | 60616 |
| ALLEN SAMPSON SAINT CHARLES, IL Professional, Scientific, and Technical Services : All Other Professional, Scientific, and Technical Services | 60174 |
| ALTMAYER FRANK OWNER CHICAGO, IL Professional, Scientific, and Technical Services : Environmental Consulting Services | 60623 |
| AMERICAN NUCLEAR SOCIETY INCORPORATED LA GRANGE PARK, IL Professional, Scientific, and Technical Services : Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) | 60526 |
| AMERICAN PLANNING ASSOCIATION CHICAGO, IL Professional, Scientific, and Technical Services : Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) | 60603 |
| AMERICAN RESOURCE SOLUTIONS INCORPORATED AURORA, IL Professional, Scientific, and Technical Services : Environmental Consulting Services | 60506 |
| AMERICAN STUDENT DENTAL ASSOCIATION CHICAGO, IL Professional, Scientific, and Technical Services : Other Services Related to Advertising | 60611 |
| ANDERSON PAUL R GENEVA, IL Professional, Scientific, and Technical Services : Environmental Consulting Services | 60134 |
| AON RISK SERVICES COMPANIES INCORPORATED CHICAGO, IL Professional, Scientific, and Technical Services : All Other Professional, Scientific, and Technical Services | 60601 |
| APPLIED MATERIAL SYSTEMS ENGINEERING INCORPORATED SCHAUMBURG, IL Professional, Scientific, and Technical Services | 60194 |
| APPLIED REAL ESTATE ANALYSIS, INC. CHICAGO, IL Professional, Scientific, and Technical Services : Administrative Management and General Management Consulting Services | 60605 |
| APPLIED THIN FILMS INCORPORATED EVANSTON, IL Professional, Scientific, and Technical Services : Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) | 60201 |
| APPLIED WATCH TECHNOLOGIES LIMITED LIABILITY COMPANY CRYSTAL LAKE, IL Professional, Scientific, and Technical Services : Other Computer Related Services | 60014 |
| ARCHIVIO RIVERSIDE ASSET MANAGER, LLC CHICAGO, IL Professional, Scientific, and Technical Services : Architectural Services | 60610 |
| ARIES DESIGN AUTOMATION, LLC CHICAGO, IL Professional, Scientific, and Technical Services | 60660 |
| AT KEARNEY INCORPORATED CHICAGO, IL Professional, Scientific, and Technical Services : Administrative Management and General Management Consulting Services | 60606 |
| ATLAS LANGUAGE SERVICES INCORPORATED CHICAGO, IL Professional, Scientific, and Technical Services : Translation and Interpretation Services | 60631 |
| AXION BUSINESS SOLUTIONS LLC CHICAGO, IL Professional, Scientific, and Technical Services : Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) | 60610 |
| AZURE HORIZONS INCORPORATED OAK PARK, IL Professional, Scientific, and Technical Services : Other Computer Related Services | 60302 |
| B L A INC OAK BROOK, IL Professional, Scientific, and Technical Services : Surveying and Mapping (except Geophysical) Services | 60523 |
| BAILEY EDWARD DESIGN INCORPORATED CHICAGO, IL Professional, Scientific, and Technical Services : Architectural Services | 60610 |
| BAKER & MC KENZIE L.L.P. CHICAGO, IL Professional, Scientific, and Technical Services : Offices of Lawyers | 60601 |
| BAKER & MCKENZIE CHICAGO, IL Professional, Scientific, and Technical Services : Offices of Lawyers | 60601 |
| BARCODES INCORPORATED (0210) CHICAGO, IL Professional, Scientific, and Technical Services : Other Computer Related Services | 60604 |
| BARRY E SIMON PC ARLINGTON HEIGHTS, IL Professional, Scientific, and Technical Services : Other Scientific and Technical Consulting Services | 60004 |
| BASU, ANIRBAN CHICAGO, IL Professional, Scientific, and Technical Services : Research and Development in the Social Sciences and Humanities | 60637 |
| BAUER LATOZA STUDIO LIMITED CHICAGO, IL Professional, Scientific, and Technical Services : Architectural Services | 60616 |
| BAXTER & WOODMAN, INC. CRYSTAL LAKE, IL Professional, Scientific, and Technical Services : All Other Legal Services | 60012 |
| BELL BOYD AND LLOYD LIMITED LIABILITY COMPANY CHICAGO, IL Professional, Scientific, and Technical Services : Offices of Lawyers | 60602 |
| BENSINGER, DUPONT & ASSOCIATES, INC CHICAGO, IL Professional, Scientific, and Technical Services : Other Management Consulting Services | 60606 |
| BEY CLIFFORD WARNER LOCKPORT, IL Professional, Scientific, and Technical Services : All Other Professional, Scientific, and Technical Services | 60441 |
| BIOTOOLS INCORPORATED WAUCONDA, IL Professional, Scientific, and Technical Services | 60084 |
| BISHOP, WILLARD LLC BARRINGTON, IL Professional, Scientific, and Technical Services : Marketing Consulting Services | 60010 |
| BLACKMAN KALLICK BARTELSTEIN L.L.P. CHICAGO, IL Professional, Scientific, and Technical Services : Offices of Lawyers | 60606 |
| BLOOD & MARROW TRANSPLANT INFORMATION NETWORK HIGHLAND PARK, IL Professional, Scientific, and Technical Services : Administrative Management and General Management Consulting Services | 60035 |
| BLUE CROSS AND BLUE SHIELD ASSOCIATION CHICAGO, IL Professional, Scientific, and Technical Services : Administrative Management and General Management Consulting Services | 60601 |
| BLUE TECH INCORPORATED (2850) AURORA, IL Professional, Scientific, and Technical Services : Other Computer Related Services | 60505 |
| BODYCOTE POLYMER BROUTMAN LABORATORY MELROSE PARK, IL Professional, Scientific, and Technical Services : Testing Laboratories | 60160 |
| BOYD WINSTON MUNDELEIN, IL Professional, Scientific, and Technical Services | 60060 |
| BRAND ENHANCING STRATEGY TEAM CALUMET CITY, IL Professional, Scientific, and Technical Services : Human Resources Consulting Services | 60409 |
| BRONNER GROUP LIMITED LIABILITY COMPANY CHICAGO, IL Professional, Scientific, and Technical Services : Administrative Management and General Management Consulting Services | 60602 |
| BSP SOFTWARE LLC PARK RIDGE, IL Professional, Scientific, and Technical Services : Custom Computer Programming Services | 60068 |
| BUCKINGHAM FOUNTAIN LP CHICAGO, IL Professional, Scientific, and Technical Services : Other Management Consulting Services | 60601 |
| BUSINESS DECISIONS INCORPORATED CHICAGO, IL Professional, Scientific, and Technical Services : Administrative Management and General Management Consulting Services | 60659 |
| CADWALLADER CORPORATION CHICAGO, IL Professional, Scientific, and Technical Services : Offices of Lawyers | 60611 |
| CAMBRIDGE PARTNERS AND ASSOCIATES INCORPORATED PALATINE, IL Professional, Scientific, and Technical Services : All Other Professional, Scientific, and Technical Services | 60067 |
| CAPITAL H GROUP LLC CHICAGO, IL Professional, Scientific, and Technical Services : Administrative Management and General Management Consulting Services | 60606 |
| CARACAL INCORPORATED (4438) BUFFALO GROVE, IL Professional, Scientific, and Technical Services : Custom Computer Programming Services | 60089 |
| CARDINAL LAW GROUP LIMITED EVANSTON, IL Professional, Scientific, and Technical Services : All Other Professional, Scientific, and Technical Services | 60201 |
| CARE COMMUNICATIONS INCORPORATED CHICAGO, IL Professional, Scientific, and Technical Services : All Other Professional, Scientific, and Technical Services | 60606 |
| CAREERBUILDER, LLC CHICAGO, IL Professional, Scientific, and Technical Services : Human Resources Consulting Services | 60601 |
| CARLSON PETER M LA GRANGE, IL Professional, Scientific, and Technical Services : All Other Professional, Scientific, and Technical Services | 60525 |
| CAROL, ESTELLE OAK PARK, IL Professional, Scientific, and Technical Services : Graphic Design Services | 60302 |
| CASALINO, LAWRENCE CHICAGO, IL Professional, Scientific, and Technical Services : All Other Professional, Scientific, and Technical Services | 60610 |
| CBS RADIO CHICAGO, IL Professional, Scientific, and Technical Services : Advertising Agencies | 60611 |
| CDW GOVERNMENT INCORPORATED VERNON HILLS, IL Professional, Scientific, and Technical Services : Other Computer Related Services | 60061 |
| CENTER FOR CONFLICT RESOLUTION CHICAGO, IL Professional, Scientific, and Technical Services : Offices of Lawyers | 60603 |
| CENTRAL BRAIN TUMOR REGISTRY OF THE U.S. HINSDALE, IL Professional, Scientific, and Technical Services : All Other Professional, Scientific, and Technical Services | 60521 |
| CENTRANCE, INC. MORTON GROVE, IL Professional, Scientific, and Technical Services : Engineering Services | 60053 |
| CETERIS, INC. LIBERTYVILLE, IL Professional, Scientific, and Technical Services : Other Scientific and Technical Consulting Services | 60048 |
| CHAOS CONSULTING INCORPORATED DES PLAINES, IL Professional, Scientific, and Technical Services : Administrative Management and General Management Consulting Services | 60016 |
| CHARLES PIETRI WESTERN SPRINGS, IL Professional, Scientific, and Technical Services : Other Scientific and Technical Consulting Services | 60558 |
| CHASE, GAY BROADVIEW, IL Professional, Scientific, and Technical Services : Human Resources Consulting Services | 60155 |
| CHERSKOV & FLAYNIK CHICAGO, IL Professional, Scientific, and Technical Services : Offices of Lawyers | 60606 |
| CHICAGO DEFENDER CHARITIES CHICAGO, IL Professional, Scientific, and Technical Services : Display Advertising | 60653 |
| CHICAGO DENTAL SOCIETY CHICAGO, IL Professional, Scientific, and Technical Services : Other Scientific and Technical Consulting Services | 60611 |
| CHICAGO GEAR D O JAMES CORPORA CHICAGO, IL Professional, Scientific, and Technical Services : Building Inspection Services | 60612 |
| CHICAGO INTERFACE GROUP INC CHICAGO, IL Professional, Scientific, and Technical Services : Custom Computer Programming Services | 60614 |
| CHICAGO MANUFACTURING CENTER CHICAGO, IL Professional, Scientific, and Technical Services : Administrative Management and General Management Consulting Services | 60604 |
| CHICAGO PARTNERS, L.L.C. CHICAGO, IL Professional, Scientific, and Technical Services : All Other Professional, Scientific, and Technical Services | 60603 |
| CHICAGO STATE UNIVERSITY CHICAGO, IL Professional, Scientific, and Technical Services | 60628 |
| CHILDRE, DAVID ROSELLE, IL Professional, Scientific, and Technical Services : Other Management Consulting Services | 60172 |
| CHILDREN'S MEMORIAL HOSPITAL CHICAGO, IL Professional, Scientific, and Technical Services : Research and Development in the Social Sciences and Humanities | 60614 |
| CHRISTENSEN CONSULTING FOR SAFETY EXCELLENCE LTD CRYSTAL LAKE, IL Professional, Scientific, and Technical Services : Administrative Management and General Management Consulting Services | 60014 |
| CITY OF ELGIN (5862) 1310978 ELGIN, IL Professional, Scientific, and Technical Services : Public Relations Agencies | 60120 |
| CLARION ASSOCIATES INCORPORATED CHICAGO, IL Professional, Scientific, and Technical Services : All Other Professional, Scientific, and Technical Services | 60605 |
| CLARK STREET DESIGN GROUP ( A JOINT VENTURE) CHICAGO, IL Professional, Scientific, and Technical Services : Architectural Services | 60631 |
| CLAUSS, BRIAN PARK RIDGE, IL Professional, Scientific, and Technical Services : Other Scientific and Technical Consulting Services | 60068 |
| CLEAN AIR FLOW INCORPORATED DEERFIELD, IL Professional, Scientific, and Technical Services : Testing Laboratories | 60015 |
| CLINICAL DESIGN GROUP INC CHICAGO, IL Professional, Scientific, and Technical Services : Other Scientific and Technical Consulting Services | 60622 |
| COGHLAN SELLERS CONSULTING INCORPORATED SCHAUMBURG, IL Professional, Scientific, and Technical Services : Administrative Management and General Management Consulting Services | 60173 |
| COHASSET ASSOCIATES, INC. CHICAGO, IL Professional, Scientific, and Technical Services : Offices of Lawyers | 60611 |
| COMPOSITE CUTTER TECHNOLOGY INCORPORATED ROUND LAKE, IL Professional, Scientific, and Technical Services | 60073 |
| COMPSYCH EMPLOYEE ASSISTANCE PROGRAM INCORPORATED CHICAGO, IL Professional, Scientific, and Technical Services : Human Resources Consulting Services | 60611 |
| COMPUTER PROJECTS OF ILLINOIS INCORPORATED WESTMONT, IL Professional, Scientific, and Technical Services : Custom Computer Programming Services | 60559 |
| CONSOER TOWNSEND ENVIRODYNE EN CHICAGO, IL Professional, Scientific, and Technical Services : Engineering Services | 60601 |
| CONSTRUCTION TECHNOLOGY LABORATORIES INCORPORATED SKOKIE, IL Professional, Scientific, and Technical Services | 60077 |
| CONSULTATIVE EXAMINATIONS LTD. CHICAGO, IL Professional, Scientific, and Technical Services : All Other Professional, Scientific, and Technical Services | 60646 |
| CONSULTING STRATEGIES LIMITED LIABILITY COMPANY DEERFIELD, IL Professional, Scientific, and Technical Services : Other Management Consulting Services | 60015 |
| CONTAINERLESS RESEARCH INCORPORATED EVANSTON, IL Professional, Scientific, and Technical Services | 60202 |
| COOK COUNTY BUREAU OF HEALTH SERVICES CHICAGO, IL Professional, Scientific, and Technical Services : All Other Legal Services | 60612 |
| CORPORATE LEARNING INSTITUTE LISLE, IL Professional, Scientific, and Technical Services : Administrative Management and General Management Consulting Services | 60532 |
| CRAIG, LESLEY CHICAGO, IL Professional, Scientific, and Technical Services : Administrative Management and General Management Consulting Services | 60639 |
| CYPRESS SYSTEMS CONSULTING INCORPORATED DOWNERS GROVE, IL Professional, Scientific, and Technical Services : Other Computer Related Services | 60515 |
| DABEAZ LLC CHICAGO, IL Professional, Scientific, and Technical Services : Custom Computer Programming Services | 60637 |
| DANIEL COFFEY AND ASSOCIATES CHICAGO, IL Professional, Scientific, and Technical Services : Architectural Services | 60606 |
| DANIELLE ASHLEY ADVERTISING INC CHICAGO, IL Professional, Scientific, and Technical Services : Media Buying Agencies | 60601 |
| DARNAULT CHRISTOPHE J G CHICAGO, IL Professional, Scientific, and Technical Services : Environmental Consulting Services | 60607 |
| DATA INNOVATIONS INC NORTHBROOK, IL Professional, Scientific, and Technical Services : Other Computer Related Services | 60062 |
| DAVID BURNS RAILWAY CONSULTING RIVER FOREST, IL Professional, Scientific, and Technical Services : Administrative Management and General Management Consulting Services | 60305 |
| DAVID KLEINER CONSULTING SCHAUMBURG, IL Professional, Scientific, and Technical Services : Engineering Services | 60195 |
| DAVID T GENTRY OAK PARK, IL Professional, Scientific, and Technical Services : Administrative Management and General Management Consulting Services | 60302 |
| DE ARMOND, ELIZABETH CHICAGO, IL Professional, Scientific, and Technical Services : All Other Professional, Scientific, and Technical Services | 60661 |
| DEFINED EXHIBITS INCORPORATED CHICAGO, IL Professional, Scientific, and Technical Services : Display Advertising | 60632 |
| DELPHI INTERNATIONAL RESEARCH LIMITED LIABILITY COMPANY NAPERVILLE, IL Professional, Scientific, and Technical Services : Administrative Management and General Management Consulting Services | 60540 |
| DELTA RESEARCH COMPANY CHICAGO, IL Professional, Scientific, and Technical Services : Administrative Management and General Management Consulting Services | 60603 |
| DENTAL ASSISTING NATIONAL BOARD, INC. CHICAGO, IL Professional, Scientific, and Technical Services : All Other Professional, Scientific, and Technical Services | 60611 |
| DESMOND ASSOCIATES, INC ELGIN, IL Professional, Scientific, and Technical Services : Architectural Services | 60123 |
| DIGI TRAX CORPORATION LINCOLNSHIRE, IL Professional, Scientific, and Technical Services : Custom Computer Programming Services | 60069 |
| DIGITAL DESIGN CORPORATION ARLINGTON HEIGHTS, IL Professional, Scientific, and Technical Services : Engineering Services | 60004 |
| DIGITAL ONLINE TECHNOLOGIES INCORPORATED CHICAGO, IL Professional, Scientific, and Technical Services : Other Management Consulting Services | 60602 |
| DIGITAL OPTICS TECHNOLOGIES INCORPORATED ROLLING MEADOWS, IL Professional, Scientific, and Technical Services : Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) | 60008 |
| DIGITAL TECH CORPORATION NAPERVILLE, IL Professional, Scientific, and Technical Services : Engineering Services | 60564 |
| DIVERSIFIED SERVICES NETWORK INCORPORATED NAPERVILLE, IL Professional, Scientific, and Technical Services : Custom Computer Programming Services | 60565 |
| DIVERSIFIED TELECOMMUNICATIONS CHICAGO, IL Professional, Scientific, and Technical Services : All Other Professional, Scientific, and Technical Services | 60605 |
| DJL CONSULTING CHICAGO, IL Professional, Scientific, and Technical Services : Research and Development in the Social Sciences and Humanities | 60657 |
| DOBRILOVIC STEVAN D CHICAGO, IL Professional, Scientific, and Technical Services | 60611 |
| DOCULABS INCORPORATED CHICAGO, IL Professional, Scientific, and Technical Services : Administrative Management and General Management Consulting Services | 60606 |
| DOLIK & ASSOCIATES, INC. MOUNT PROSPECT, IL Professional, Scientific, and Technical Services : Other Computer Related Services | 60056 |
| DOLPHIN CREATIVE PROMOTION SKOKIE, IL Professional, Scientific, and Technical Services : Other Services Related to Advertising | 60077 |
| DOUBLE D ENTERPRISE INC CHICAGO, IL Professional, Scientific, and Technical Services : Other Specialized Design Services | 60606 |
| DR DAVID DRANOVE (1388) HIGHLAND PARK, IL Professional, Scientific, and Technical Services : Other Management Consulting Services | 60035 |
| DRAZNIN, ANN L, ESQUIRE CHICAGO, IL Professional, Scientific, and Technical Services : Offices of Lawyers | 60606 |
| DUEL, DENNIS J & ASSOC MUNDELEIN, IL Professional, Scientific, and Technical Services : Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) | 60060 |
| DVORAK MARKETING GROUP PALATINE, IL Professional, Scientific, and Technical Services : All Other Professional, Scientific, and Technical Services | 60067 |
| ELECTRICAL CONTRACTORS INCORPORATED MUNDELEIN, IL Professional, Scientific, and Technical Services : All Other Professional, Scientific, and Technical Services | 60060 |
| ELECTROKINETIC SIGNAL RESEARCH, INC. CHICAGO, IL Professional, Scientific, and Technical Services : Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) | 60612 |
| ELITE ELECTRONIC ENGINEERING, INC. DOWNERS GROVE, IL Professional, Scientific, and Technical Services : Testing Laboratories | 60515 |
| ELLEN J ALEXANDER EVANSTON, IL Professional, Scientific, and Technical Services : All Other Legal Services | 60201 |
| EMERY AND ASSOCIATES INC VERNON HILLS, IL Professional, Scientific, and Technical Services : Other Scientific and Technical Consulting Services | 60061 |
| ENERTRONICS ENGINEERING CORP MUNSTER, IN Professional, Scientific, and Technical Services : Engineering Services | 46321 |
| ENGINEERING SYSTEMS INC. AURORA, IL Professional, Scientific, and Technical Services : All Other Legal Services | 60504 |
| ENTERPRISE SYSTEMS CONSULTING GLENVIEW, IL Professional, Scientific, and Technical Services : Custom Computer Programming Services | 60025 |
| ENTERPRISE WAREHOUSING SOLUTIO PALOS HILLS, IL Professional, Scientific, and Technical Services : Custom Computer Programming Services | 60465 |
| ENVIRONMENTAL CONSULTING GROUP, INC. CHICAGO, IL Professional, Scientific, and Technical Services : Environmental Consulting Services | 60607 |
| ENVIRONMENTAL DESIGN INTERNATIONAL INCORPORATED CHICAGO, IL Professional, Scientific, and Technical Services : Engineering Services | 60604 |
| ENVIRONMENTAL HEALTH CONSULTIN OAK PARK, IL Professional, Scientific, and Technical Services : Environmental Consulting Services | 60304 |
| ENVIRONMENTAL PROTECTION INDUSTRIES, INC. SOUTH HOLLAND, IL Professional, Scientific, and Technical Services : Testing Laboratories | 60473 |
| EPICH, BRETT K CHICAGO, IL Professional, Scientific, and Technical Services : All Other Professional, Scientific, and Technical Services | 60638 |
| EPIR LIMITED BOLINGBROOK, IL Professional, Scientific, and Technical Services | 60440 |
| EPIR TECHNOLOGIES INCORPORATED BOLINGBROOK, IL Professional, Scientific, and Technical Services | 60440 |
| EPSILON LAMBDA ELECTRONICS CORP. WEST CHICAGO, IL Professional, Scientific, and Technical Services | 60185 |
| EUBANKS & ASSOCIATES INC GLENVIEW, IL Professional, Scientific, and Technical Services : Landscape Architectural Services | 60025 |
| EUROMONITOR INTERNATIONAL INC CHICAGO, IL Professional, Scientific, and Technical Services : All Other Professional, Scientific, and Technical Services | 60604 |
| EVANSTON NORTHWESTERN HEALTHCARE CORPORATION EVANSTON, IL Professional, Scientific, and Technical Services | 60201 |
| EX LIBRIS (USA) INC. DES PLAINES, IL Professional, Scientific, and Technical Services : Other Computer Related Services | 60018 |
| EXECSECURE LIMITED LIABILITY COMPANY CHICAGO, IL Professional, Scientific, and Technical Services : Other Computer Related Services | 60605 |
| EXHIBIT DESIGN CENTRAL , INC WILMETTE, IL Professional, Scientific, and Technical Services : Other Specialized Design Services | 60091 |
| FAIRMONT HOTEL MANAGEMENT LIMITED PARTNERSHIP (2587) CHICAGO, IL Professional, Scientific, and Technical Services : Advertising Agencies | 60601 |
| FENOMTEK INCORPORATED INVERNESS, IL Professional, Scientific, and Technical Services : Custom Computer Programming Services | 60067 |
| FERMI RESEARCH ALLIANCE LIMITED LIABILITY COMPANY BATAVIA, IL Professional, Scientific, and Technical Services | 60510 |
| FISCAL ADVISING CONSULTING CHICAGO, IL Professional, Scientific, and Technical Services : Offices of Certified Public Accountants | 60614 |
| FLOWMASTER USA INC SKOKIE, IL Professional, Scientific, and Technical Services : Other Computer Related Services | 60077 |
| FLUIDCLARITY LTD OAK PARK, IL Professional, Scientific, and Technical Services : Environmental Consulting Services | 60302 |
| FOREST ONE INC ITASCA, IL Professional, Scientific, and Technical Services : Geophysical Surveying and Mapping Services | 60143 |
| FOSTER GROUP THE INCORPORATED CHICAGO, IL Professional, Scientific, and Technical Services : Other Computer Related Services | 60611 |
| FOUNDATION OF RESEARCH AND EDUCATION IN HEALTH INFORMATION M CHICAGO, IL Professional, Scientific, and Technical Services : Administrative Management and General Management Consulting Services | 60601 |
| FOX RIVER GRAPHICS, INC CARPENTERSVILLE, IL Professional, Scientific, and Technical Services : Other Computer Related Services | 60110 |
| FRANK CHALOUPKA SAINT CHARLES, IL Professional, Scientific, and Technical Services : Other Scientific and Technical Consulting Services | 60174 |
| FREEDMAN, STEVEN I DEERFIELD, IL Professional, Scientific, and Technical Services : Engineering Services | 60015 |
| FUNCTIONAL COATING TECHNOLOGY LIMITED LIABILITY COMPANY EVANSTON, IL Professional, Scientific, and Technical Services | 60201 |
| GAMMA TECHNOLOGIES INC WESTMONT, IL Professional, Scientific, and Technical Services : Engineering Services | 60559 |
| GAMMON GROUP INCORPORATED THE JOLIET, IL Professional, Scientific, and Technical Services : Graphic Design Services | 60432 |
| GARD ANALYTICS, INC PARK RIDGE, IL Professional, Scientific, and Technical Services : Research and Development in the Social Sciences and Humanities | 60068 |
| GEOTECH ENVIRONMENTAL SERVICES, INC. BARRINGTON, IL Professional, Scientific, and Technical Services : Geophysical Surveying and Mapping Services | 60010 |
| GERMANN INSTRUMENTS INCORPORATED EVANSTON, IL Professional, Scientific, and Technical Services : Engineering Services | 60203 |
| GESSE, TANYA CHICAGO, IL Professional, Scientific, and Technical Services : Translation and Interpretation Services | 60611 |
| GIBBONS, ROBERT D LTD CHICAGO, IL Professional, Scientific, and Technical Services : Other Scientific and Technical Consulting Services | 60614 |
| GILLES, BLAINE PALATINE, IL Professional, Scientific, and Technical Services : Other Scientific and Technical Consulting Services | 60067 |
| GINKGO ENTERPRISE, LLC DARIEN, IL Professional, Scientific, and Technical Services : Process, Physical Distribution, and Logistics Consulting Services | 60561 |
| GIRL ON RUN CHGO CHICAGO, IL Professional, Scientific, and Technical Services : All Other Professional, Scientific, and Technical Services | 60622 |
| GIVEN AARON OSWEGO, IL Professional, Scientific, and Technical Services : All Other Professional, Scientific, and Technical Services | 60543 |
| GLASGOW GLENN P PHD RIVER FOREST, IL Professional, Scientific, and Technical Services : Engineering Services | 60305 |
| GLOBAL GRID FORUM ARGONNE, IL Professional, Scientific, and Technical Services : Custom Computer Programming Services | 60439 |
| GLOBALVIEW SOFTWARE, INC CHICAGO, IL Professional, Scientific, and Technical Services : Marketing Research and Public Opinion Polling | 60606 |
| GLOCOMS INCORPORATED CHICAGO, IL Professional, Scientific, and Technical Services : Administrative Management and General Management Consulting Services | 60611 |
| GLOWACKI, RICHARD ORLAND PARK, IL Professional, Scientific, and Technical Services : Administrative Management and General Management Consulting Services | 60462 |
| GOLIN/HARRIS INTERNATIONAL, INC. CHICAGO, IL Professional, Scientific, and Technical Services : Marketing Consulting Services | 60601 |
| GONZALEZ PARTNERS INCORPORATED CHICAGO, IL Professional, Scientific, and Technical Services : Architectural Services | 60601 |
| GOOD, WILLIAM PARK RIDGE, IL Professional, Scientific, and Technical Services : Administrative Management and General Management Consulting Services | 60068 |
| GOULD & PAKTER ASSOCIATES, LLC CHICAGO, IL Professional, Scientific, and Technical Services : All Other Legal Services | 60606 |
| GRACE ANALYTICAL LABORATORY IN BERKELEY, IL Professional, Scientific, and Technical Services : Engineering Services | 60163 |
| GRALL COMPANY INC, THE LEMONT, IL Professional, Scientific, and Technical Services : Research and Development in Biotechnology | 60439 |