| LOCKTON COMPANIES LLP | INSURANCE BROKER | $1,904,248 |
| CELERITY IT LLC | CONSULTANTS | $1,299,280 |
| BRE IMAGINATION OFFICE HOLDCO | Real Estate and Rental and Leasing | $1,202,742 |
| 1625 MASSACHUSETTS AVENUE NW C | Real Estate Property Managers | $1,136,685 |
| 1625 MASSACHUSETTS AVENUE LLC | Real Estate Property Managers | $927,932 |
| RAVINIA ACQUISITIONS LLC | Real Estate Property Managers | $684,051 |
| UNITED AIR LINES | Air Transportation - Scheduled | $672,360 |
| THOMAS MCGEE L.C. | Insurance Agencies and Brokerages | $517,953 |
| APTIFY CORPORATION | Stationery and office supplies | $468,165 |
| SOFTWARE ONE INC | Operating systems software, computer: prepackaged | $434,607 |
| DELTA AIR LINES INC | Air Transportation - Scheduled | $411,940 |
| WILLIAMS & CONNOLLY LLP | Attorneys, Legal Services | $340,049 |
| WITHUMSMITH+BROWN PC | Income tax return preparation services without acc | $312,750 |
| INMAN QUARTERS | Real Estate and Rental and Leasing | $305,367 |
| PYRAMID CONSULTING INC | CONSULTANTS | $281,080 |
| STOC OWNER LLC | Real Estate and Rental and Leasing | $265,094 |
| INTERNATIONAL PLAZA PARTNERS L | Real Estate Property Managers | $260,158 |
| US POSTAL SERVICE-HERNDON | Postal Service | $255,950 |
| PREMIER TECHNOLOGY ADVISORS LL | CONSULTANTS | $254,748 |
| HERTZ FORUM HOLDINGS, LLC | Real Estate Property Managers | $252,463 |
| AT&T | Telephone Communications | $211,306 |
| THOMSON REUTERS - WEST | Books, magazines, publications, periodicals, & new | $193,479 |
| DELL MARKETING LP | CONSULTANTS | $186,257 |
| DOMINION ENERGY | Utilities | $181,377 |
| ADMIRAL SECURITY SERVICES | Building maintenance services, nec | $160,323 |
| PC MALL | Computer Equipment | $155,719 |
| 2592935 ONTARIO INC | Real Estate Property Managers | $143,628 |
| KELLY PRESS INC | Printing | $139,956 |
| AIPA PROPERTIES LLC | Real Estate Property Managers | $132,162 |
| STATUSLABS.COM | Public Relations Agencies | $125,000 |
| SUNTRUST | Banks | $123,646 |
| CERIDIAN EMPLOYER SERVICES | Payroll Services | $121,589 |
| HILTON HOTELS | Hotels & Motels | $120,986 |
| CARPATHIA HOSTING LLC | INTERNET SERVICE | $118,320 |
| DATAWATCH SYSTEMS | Security Systems Services | $113,304 |
| VALO CATERING 15412927 | Restaurant/Catering | $110,706 |
| EMPYREAN BENEFIT SOLUTIONS INC | CONSULTANTS | $108,260 |
| ABLE MOVING & STORAGE INC | Moving and Storage | $93,597 |
| JONES LANG LASALLE | Real Estate Property Managers | $92,713 |
| ARE-LEI PHOENIX GATEWAY | Real Estate and Rental and Leasing | $89,791 |
| FIRST REAL PROPERTIES LTD | Real Estate Property Managers | $83,007 |
| QUEST MANAGEMENT SERVICES LIMITED | MANAGEMENT FIRM | $81,281 |
| NEOPOST | Equipment & furniture rental & leasing | $80,918 |
| 1499 MASSACHUSETTS AVENUE, INC | Real Estate and Rental and Leasing | $78,979 |
| 100 MERRICK ROAD REALTY LLC | Real Estate Property Managers | $76,054 |
| IRON MOUNTAIN | Storage, general | $73,974 |
| USI INSURANCE SERVICES LLC | Insurance Carriers and Related Activities | $73,338 |
| ONE DIVERSIFIED LLC | CONSULTANTS | $69,125 |
| QUORUM ANALYTICS INC | Systems analysis and design, computer software | $67,800 |
| COLONIAL PARKING | Parking Lots and Garages | $67,457 |
| FEDERAL EXPRESS | Air Transportation, Scheduled | $66,148 |
| US SECURITY ASSOCIATES INC | Investigation and Security Services | $65,629 |
| MICROSOFT LICENSING GP | Applications software, computer: prepackaged | $65,392 |
| FEDERAL EXPRESS | Air Transportation - Scheduled | $59,922 |
| SHARP BUSINESS SYSTEMS | Office equipment | $57,590 |
| WELLS FARGO BANK | Bank | $57,247 |
| GATEWAY HOUSTON PARTNERS LLC | Real Estate and Rental and Leasing | $55,060 |
| ARAMARK REFRESHMENT SERVICES | Special Foodservices | $51,501 |
| LATITUDE INC | Temporary Help Services | $50,843 |
| RP CBP EULESS LLC | Real Estate Property Managers | $50,718 |
| VERIZON | Telephone Communications | $48,885 |
| OFFICETEAM | Temporary Help Services | $47,319 |
| LOBO STRATEGIES LLC | CONSULTANTS | $43,587 |
| TRANSPERFECT DOCUMENT | Court Reporting and Stenotype Services | $42,914 |
| EPIC QUEBEC INC IN TRUST | Real Estate Property Managers | $42,765 |
| ALLEN BROOK | Consultant | $42,308 |
| JAMES W JOHNSON | Attorneys, Legal Services | $41,854 |
| IMPACT OFFICE | Office Supplies, Stationery and Gift Stores | $41,595 |
| MARITIM PROARTE HOTEL | Hotels & Motels | $41,338 |
| BRIGHTVIEW LANDSCAPE SERVICES | Landscape and Horticultural Services | $41,128 |
| TABLEAU SOFTWARE INC | Computers, peripherals & software | $38,730 |
| SUNBELT RENTALS INC | Misc. Equipment Rental & Leasing | $37,731 |
| ONIX NETWORKING CORP | Network systems integration, computer | $36,000 |
| MIDTOWN PERSONNEL INC | Temporary Help Services | $35,566 |
| ICIMO INC | Software programming, custom | $35,260 |
| SITECORE USA INC | Operating systems software, computer: prepackaged | $34,299 |
| CISION US INC. | On-Line Information Services | $33,957 |
| BOF AZ PHOENIX GATEWAY CENTER | Real Estate and Rental and Leasing | $31,125 |
| ESTERA | ATTORNEYS LEGAL SERVICES | $31,091 |
| CARBOGEN CORPORATION | Real Estate Property Managers | $30,984 |
| THE PARK'S EDGE AT SHELBY FARM | Real Estate and Rental and Leasing | $29,407 |
| CALEYWRAY | Attorneys, Legal Services | $29,104 |
| IPXI GATEWAY CENTRE INVESTORS | Real Estate Property Managers | $29,028 |
| NUVI LLC | Software systems analysis and design, custom | $28,640 |
| COX COMMUNCATIONS | INTERNET SERVICE | $28,555 |
| ATT*BILL PAYMENT | Telephone Communications | $27,865 |
| BREDHOFF & KAISER PLLC | Attorneys, Legal Services | $27,441 |
| DIGITAL VIDEO GROUP | Photographic cameras, projectors, equipment and su | $26,508 |
| MHC SOFTWARE, INC | Software systems analysis and design, custom | $26,312 |
| JETBLUE AIRWAYS | Air Transportation - Scheduled | $25,044 |
| OAG WORLDWIDE, INC. | Books, magazines, publications, periodicals, & new | $24,675 |
| CINTAS | Other Management Consulting Services | $24,584 |
| COMCAST | Cable and other pay TV services | $24,579 |
| LESCAULT AND WALDERMAN, INC. | CONSULTANTS | $23,723 |
| SLATE ENCLAVE LLC | Computer programming services | $22,500 |
| AESTHETIC ANSWERS | Signs | $22,162 |
| BLUEBOLT INC | Professional and Management Development Training | $21,976 |
| Murray B Munro | ALPA Member | $21,205 |
| REAL MAGNET | Marketing Consulting Services | $20,875 |
| RELIANT TECHNOLOGY LLC | Computers, peripherals & software | $18,834 |
| A- PLUS CLEANING SERVICES | Office cleaning service | $18,613 |
| ARC EXCESS & SURPLUS | Insurance Carriers and Related Activities | $18,500 |
| ARTHUR MORRIS & COMPANY | INDEPENDENT AUDIT FIRM | $18,126 |
| LINK SYSTEMS INC | Educational Services | $18,000 |
| JAZZ AVIATION LP | Air Transportation - Scheduled | $17,405 |
| COURTYARD BY MARRIOTT- | Hotels & Motels | $17,184 |
| PLANE SCIENCES | Software systems analysis and design, custom | $16,730 |
| CERIDIAN CANADA LTD. | Payroll Services | $16,643 |
| EXCEL COURIER INC | Courier services, except by air | $16,386 |
| UNIVERSITY OF NEW HAMPSHIRE | Colleges, Universities and Professional Schools | $16,262 |
| SAINT GERMAIN CATERING | Restaurant/Catering | $16,077 |
| FEDERAL EXPRESS | Mail delivery, shipping & air private | $15,660 |
| BJ'S RESTAURANTS 537 | Restaurant/Catering | $15,545 |
| TREASURER OF VIRGINIA | Goverment - Finance, taxation, & monetary policy | $15,447 |
| AVIATION WEEK | Books, magazines, publications, periodicals, & new | $15,300 |
| ATLANTIC METRO | INTERNET SERVICE | $15,273 |
| LIFEWORKS US INC | Professional and Management Development Training | $14,783 |
| GLENBOROUGH GATEWAY OFFICE | Real Estate Property Managers | $14,772 |
| COVEO SOFTWARE CORP | Computer Equipment and Software Wholesalers | $14,400 |
| PP*JEFFLUBINST | Retail-Misc General Merchandise Stores | $14,310 |
| DOMINION MECHANICAL | Building maintenance services, nec | $14,140 |
| CURVATURE LLC | Network systems integration, computer | $14,124 |
| CTM NA INC OPS | Travel Services | $13,970 |
| ADOBE SYSTEMS INC | Prepackaged software | $13,666 |
| INQUEST CONSULTING LLC | CONSULTANTS | $13,593 |
| ATLANTA OFFICE LIQUIDATORS INC | Office Furniture | $13,171 |
| SPIRIT AIRLINES, INC. | Air Transportation - Scheduled | $13,142 |
| INDEED | Employment Services | $12,946 |
| CENTRE FOR ASIA PACIFIC | Books, magazines, publications, periodicals, & new | $12,940 |
| IN *JOBTARGET | Services-Educational Services | $12,432 |
| G&I VIII BROOK CHASE LLC | Real Estate Property Managers | $11,864 |
| WORLD TRAVEL INC | Travel Agencies | $11,365 |
| IFALPA | ASSOCIATIONS | $11,310 |
| WHISTLE STOP DIGITAL | Software Publishers | $11,250 |
| AWARDS LIMOUSINE SERVICE | Taxicabs | $10,958 |
| APL*APPLE ONLINE STORE | Services-Membership or ganizations | $10,895 |
| COMED | Utilities | $10,618 |
| BUREAU OF NATIONAL AFFAIRS | Books, magazines, publications, periodicals, & new | $10,539 |
| HILTON INTERNATIONALS | Hotels & Motels | $10,521 |
| ENVOY AIR | Air Transportation - Scheduled | $10,474 |
| BUSINESS WIRE, INC. | Newspaper, Periodical, Book and Database Publisher | $10,428 |
| MONOPRICE, INC. | Computer & office Equipment | $10,033 |
| FEDERAL PAINTING LLC | Building maintenance services, nec | $10,002 |
| Larry Roesch Chrysler Jeep Dod | Automobile Dealers | $10,000 |
| FIBERLIGHT LLC | INTERNET SERVICE | $9,636 |
| INFORMA INVESTMENT SOLUTIONS | Investment research | $9,483 |
| FLIK INTERNATIONAL CORP | Foodservice Contractors | $9,440 |
| FATPIPE INC | Computers, peripherals & software | $9,280 |
| BLUE JEANS NETWORK, INC. | Cellular & Other Wireless Telecommunications | $9,261 |
| WASHINGTON METRO BLDG SERVICES | Building maintenance services, nec | $9,250 |
| COOLEY LLP | Attorneys, Legal Services | $9,103 |
| ICIMS.COM | CONSULTANTS | $8,923 |
| Brian K Shury | ALPA Member | $8,923 |
| TOWN OF HERNDON | Goverment - Finance, taxation, & monetary policy | $8,819 |
| GLASSDOOR INC | Advertising | $8,809 |
| Richard A Hale | ALPA Member | $8,352 |
| GEORGIA POWER | Utilities | $8,319 |
| COALESCENT INC | CONSULTANTS | $8,250 |
| Gaffel Haus Berlin | Restaurant/Catering | $8,109 |
| INFOR 100003566 | Software | $8,081 |
| EMIRATES AI | Air Transportation, Scheduled | $7,923 |
| RAINFOCADOBE AM19 | Training | $7,860 |
| PITNEY BOWES | Postal Service | $7,778 |
| ZOHO CORPORATION | Computer software publishers | $7,772 |
| Ellen G Brinks | ALPA Member | $7,729 |
| VANDERPOOL FROSTICK & NISHANIA | Attorneys, Legal Services | $7,706 |
| BANK OF MONTREAL | Bank | $7,504 |
| JEPPESEN SANDERSON INC | Books, magazines, publications, periodicals, & new | $7,378 |
| COMMUTAIR | Air Transportation - Scheduled | $7,333 |
| SQ *TYSONS' BIERGAR | Restaurant/Catering | $7,311 |
| LEARN UPON LIMITED | Books, magazines, publications, periodicals, & new | $7,188 |
| MELISSA DATA CORPORATION | CONSULTANTS | $7,100 |
| Marc Duffy-Vincelette | ALPA Member | $7,069 |
| Alberto E Gaspari | ALPA Member | $7,047 |
| Thomas L O Toole | ALPA Member | $7,023 |
| MCQUOWN CONSULTING LLC | COMMUNICATIONS TRAINING | $7,000 |
| FISK TECHNOLOGIES | Telecomunications | $6,962 |
| Robert A Fulton | ALPA Member | $6,730 |
| AFL-CIO LAWYERS COORDINATING C | Labor Unions and Similar Labor Organizations | $6,650 |
| ATLASSIAN PTY LTD | Computer programming services | $6,500 |
| LEARNING TREE INTERNATIONAL | Colleges, Universities and Professional Schools | $6,380 |
| HYATT REG RESTON EVNT | Hotels & Motels | $6,363 |
| EXPERIMENTAL AIRCRAF | Drive In Campsites | $6,348 |
| INTERNATL SOCIETY OF | Services-Educational Services | $6,310 |
| John A Taylor | ALPA Member | $6,227 |
| THE FAIRMONT HOTELS WAIL | Hotels & Motels | $5,941 |
| Daniel J Gradwohl | ALPA Member | $5,916 |
| DCJOBS.COM | Employment Services | $5,915 |
| CLEANERS2U | Drycleaning plants, except rug | $5,803 |
| CAPITOL EXHIBIT SERVICES INC | CONFERENCE CENTERS | $5,756 |
| HUB INTERNATIONAL HKMB LIMITED | Direct Property and Casualty Insurance Carriers | $5,722 |
| FLIK VALO PARK11412913 | Restaurant/Catering | $5,658 |
| ALERT MEDIA | Communications Services, NEC | $5,643 |
| DIRECTV | Cable and other pay TV services | $5,632 |
| ENDICOTT COMM INC | Telephone Answering Services | $5,498 |
| Rodney J Lypchuk | ALPA Member | $5,426 |
| CROWLEY MICROGRAPHICS INC | Other Information Services | $5,415 |
| NATHALIE HUOT | Translation and Interpretation Services | $5,363 |
| EMPLOYMENT BACKGROUND | Employment Services | $5,327 |
| SKY TELEVISION INC | Repair and Maintenance | $5,301 |
| METROPOLITIAN AUDIO VISUAL | Audio and Video Equipment | $5,300 |
| YARDI MARKETPLACE | Office equipment | $5,281 |
| 1757 GOLF CLUB | Retail-Misc General Merchandise Stores | $5,238 |
| William F Secord | ALPA Member | $5,186 |
| SERVER SUPPLY.COM INC | Computers, peripherals & software | $5,123 |
| AMERICAN DISPOSAL SERVICES | Waste Treatment and Disposal | $5,118 |
| COFENSE | Applications software, computer: prepackaged | $5,000 |
