wa-public-works-records

NORTH CENTRAL EDUCATIONAL SVC DISTRICT — public works contracts

326 public works projects and 359 intents to pay prevailing wages name NORTH CENTRAL EDUCATIONAL SVC DISTRICT as the awarding agency, in the L&I file of Oct 1, 2026. L&I classes it as: Educational Services District.

Bidding, hiring a subcontractor or checking a competitor? A dated public works report ($19) on one contractor — or an agency's awards, every month.

Intents filed, by year

2017201820192020202120222023202420252026
17203921343335342218

Latest contracts (200)

Intent filedContractPrime contractorAmount declared
Sep 15, 2026On Call maintenance
6002600010
Apple-Pi Janitorial LLC$3,000
Sep 10, 20262nd & 3rd Floor Roof Repairs
6002600110
AMERICAN EXTERIOR SLTNS CORP$125,288
Sep 2, 2026Access and Cameras
525968
KEYHOLE SECURITY INC$95,639
Aug 31, 2026Summer Clean up
Rudy Anaya
ROYS LAWN CARE & SNWPLWNG, INC$2,015
Jul 9, 2026Weather Seal Wall Sign NCED
6002600116
GRAYBEAL SIGNS$10,913
Jun 4, 20263 Year Landscape Maintenance Agreement 2025
8764
ROYS LAWN CARE & SNWPLWNG, INC$25,179
May 20, 2026Landscape Enhancements
647
ROYS LAWN CARE & SNWPLWNG, INC$9,152
Feb 11, 2026REPLACE 5 OUTSIDE LIGHTS
6002600063
BECKSTEAD ELECTRIC INC$2,698
Oct 22, 202525 DROPS AT ST JOSEPH'S CATHOLIC SCHOOL
1822400080
SALCIDO CONNECTION INC, THE$8,463
Sep 17, 2025ON CALL JANITORIAL SERVICES
6002600010
Apple-Pi Janitorial LLC$3,000
Aug 1, 2025PARKING LOT REPAIR AND SEALCOAT
6002400085
A & W PAVING INC$13,872
Jul 23, 2025Network Cabinet
N/C
SALCIDO CONNECTION INC, THE$1,334
Jul 9, 2025Landscape Enhancements
9706
ROYS LAWN CARE & SNWPLWNG, INC$3,046
May 20, 2025STRIPPING & WAXING FLOORS
6002400086
iPro Building Services LLC$3,000
May 15, 20253 Year Landscape Maintenance Agreement 2025
8764
ROYS LAWN CARE & SNWPLWNG, INC$25,133
Apr 4, 2025NCESD Carpet Cleaning
6002400070
iPro Building Services LLC$4,477
Mar 31, 2025WINDOW WASHING
6002400074
NU-CLEAR BUILDING MAINTENANCE$3,595
Mar 13, 2025ROOFING REPAIR
6002400064
M VAIL COMPANY$14,079
Feb 27, 2025FIBER FOR OMAK MS/HSBECKSTEAD ELECTRIC INC$28,304
Feb 27, 20258 DATA DROPS - SOAP LK SD
1822400060
BECKSTEAD ELECTRIC INC$5,745
Dec 12, 2024Annual Fire Inspections
WO 523783
KEYHOLE SECURITY INC—
Dec 11, 2024On Call Janitorial
6002400033
Apple-Pi Janitorial LLC$4,390
Aug 28, 2024CARPET CLEANING
6002300116
CLEAN AIR CONNECT/CLEAN CONN$3,641
Aug 14, 2024WAX AND REFINISH FLOORS
6002300115
iPro Building Services LLC$3,000
Aug 7, 2024FIBER INSTALL OMAK MS/HS
1822300080 REQ52568
SCHMITT ELECTRIC INC$30,232
Aug 7, 2024INSTALL 4 CAT 6 - EAST OMAK ELEM
1822300081 REQ52569
SCHMITT ELECTRIC INC$3,894
Aug 5, 202435 DATA DROPS FOR OROVILLE ELEM
1822300079
CONNECT TELECOM LLC$9,197
Jul 19, 2024FLOOR WORK
6002200092
iPro Building Services LLC$3,000
May 15, 2024(title withheld)
2019 Subaru Outback
GRAYBEAL SIGNS INC$392
May 14, 2024CABLES FOR CLOCK SYSTEM-NESPELEM
1822300012
CONNECT TELECOM LLC$11,427
Apr 9, 2024interior and exterior window washing
6002300076
NU-CLEAR BUILDING MAINTENANCE$3,568
Mar 13, 2024INSTALL 42 DATA DROPS AT OKANOGAN SD
1822300042
CONNECT TELECOM LLC$8,588
Mar 5, 2024Landscape Project 2024
6002300073
ROYS LAWN CARE & SNWPLWNG, INC$7,654
Jan 23, 2024DATA DROPS FOR OMAK SD
1822300019
CONNECT TELECOM LLC$5,432
Jan 16, 2024RE-LAMP AUXILIARY PARKING LOT
6002300054
BECKSTEAD ELECTRIC INC$3,016
Jan 9, 2024NCESD HVAC Upgrades /Replacements
6002300039
NORTH CASCADES HTG & AIR COND$679,234
Nov 29, 2023HARVEST VALLEY PEST CONTROL
6002300043
Harvest Valley Pest Ctrl Inc$1,229
Nov 7, 2023O/C Janitorial
6002300028
Apple-Pi Janitorial LLC$3,500
Nov 2, 2023Annual Maintenance FY 2023-20243
US46640
TK ELEVATOR CORPORATION$6,533
Oct 5, 202335 RETROFIT LIGHTS TO LED
2412300035
BECKSTEAD ELECTRIC INC$5,613
Oct 2, 2023Elevator Maintenance 2022 � North Central ESD
6002200130
TK ELEVATOR CORPORATION$6,533
Sep 26, 2023CHAIN LINK FENCE REPAIR
6002300011
APPLE VALLEY FENCE LLC$6,196
Sep 25, 2023DATA DROPS FOR VIRGINIA GRANGER ELEMENTARY
1802300042
CONNECT TELECOM LLC$6,063
Sep 14, 2023WINDOW CLEANING
6002200088
NU-CLEAR BUILDING MAINTENANCE$3,565
Aug 21, 2023INSTALL 6 DATA DROPS - OKANOGAN SD
1802200340
CONNECT TELECOM LLC$2,841
Aug 16, 2023CARPET CLEANING
213633
CLEAN AIR CONNECT/CLEAN CONN$3,641
Aug 1, 2023PARKING LOT SEAL COAT
602200113
A & W PAVING INC$7,500
Jul 19, 202346 DATA DROPS OROVILLE SD
1802200315
CONNECT TELECOM LLC$14,844
Jul 17, 2023ON CALL JANITORIAL SERVICES
6002200042
Apple-Pi Janitorial LLC$3,000
Jun 16, 2023BIMONTHLY PEST CONTROL
6002200027
Harvest Valley Pest Ctrl Inc$1,222
May 7, 2023EXTERIOR/INTERIOR WINDOW CLEANING
600220008
NU-CLEAR BUILDING MAINTENANCE$3,283
Apr 21, 2023Floor ServiceiPro Building Services LLC$3,000
Apr 17, 2023Soap Lake Highschool
1802200245
CONNECT TELECOM LLC$2,068
Apr 5, 2023EXTRA WORK FOR WORKROOM/LUNCH ROOM
6002200094
GOLD CONSTRUCTION INC$4,622
Feb 9, 2023INSTALL 11 DROPS AT ENTIAT HS
1802200200
CONNECT TELECOM LLC$4,079
Jan 16, 2023Install video intercom
111022
KEYHOLE SECURITY INC$7,256
Jan 16, 2023PARKING LOT LIGHTS
57604
BECKSTEAD ELECTRIC INC$9,139
Nov 16, 2022FIBER SERVICES FOR NESPELEM SD
1802200106
CONNECT TELECOM LLC$3,993
Nov 8, 2022NCESD HVAC Maintenance 2022-2025
6002200022
NORTH CASCADES HTG & AIR COND—
Sep 27, 2022To install door securities for Tonasket School
1802200003
CompuNet, Inc.$20,151
Sep 16, 2022DATA DROPS FOR OKANOGAN SCHOOL DISTRICT
1802200008
CONNECT TELECOM LLC$10,591
Aug 18, 2022To renovate first floor per proposal #22-23
6002200001
GOLD CONSTRUCTION INC$70,991
Aug 9, 2022INSTALL FIBER FOR OKANOGAN HS
1802100312
CONNECT TELECOM LLC$3,084
May 24, 2022Halo Devices at Entiat School District
1802100210
CompuNet, Inc.$18,684
Apr 14, 2022PAINTING SERVICES - EXTERIOR/INTERIOR
6002100066
N C PAINTING INC$29,699
Mar 31, 202216 DATA DROPS FOR GRAND COULEE
1802100193
CONNECT TELECOM LLC$4,519
Mar 29, 2022Re-Landscaping Project
6002100088
ROYS LAWN CARE & SNWPLWNG, INC$21,883
Mar 24, 202262 DATA DROPS - ENTIAT
1802100177
CONNECT TELECOM LLC$12,346
Mar 22, 2022ON CALL JANITORIAL FOR 2021-22 FISCAL YR
6002100019
Apple-Pi Janitorial LLC$3,500
Mar 9, 2022Replace old cameras
3012022
KEYHOLE SECURITY INC$12,968
Feb 10, 2022Landscape Maintenance
6002100065
ROYS LAWN CARE & SNWPLWNG, INC$18,603
Nov 10, 2021REPLACE DOOR HARDWARE AND READER
6002100016
KEYHOLE SECURITY INC$4,129
Nov 9, 20212ND UPGRADE TO FRONT DOOR
6002100035
KEYHOLE SECURITY INC$3,166
Oct 27, 2021Re-Landscape Project
6002100024
ROYS LAWN CARE & SNWPLWNG, INC$32,037
Oct 14, 2021SEAL JOINTS ON WINDOWS AND STUCCO
6002000086
GOLD CONSTRUCTION INC$15,417
Sep 17, 2021Sintra Replacement FCO
Pete Phillips
GRAYBEAL SIGNS INC$761
Aug 13, 2021RE-LANDSCAPE 2 LARGE BEDS AND 2 TREES
6002000087
ROYS LAWN CARE & SNWPLWNG, INC$26,148
Jul 30, 2021WardenSchool data drops
1802000278
CONNECT TELECOM LLC$19,730
Jul 26, 2021Vale Elem. patch panel re-wire
1802000223
CONNECT TELECOM LLC$2,908
Jul 15, 2021Move Card Reader
6282021
KEYHOLE SECURITY INC$2,467
Jul 13, 2021(title withheld)
6002000068
GOLD CONSTRUCTION INC$9,059
May 24, 2021SEAL COAT PARKING LOT
6002000067
A & W PAVING INC$4,698
May 23, 202127 DATA DROPS IN CTE AT GRAND COULEE SD
1802000211
CONNECT TELECOM LLC$11,810
May 11, 2021(title withheld)
6002000051
MURILLOS CONCRETE$8,680
Apr 27, 2021Replace Video Server
6002000057
KEYHOLE SECURITY INC$6,668
Mar 10, 2021Entiat data drops
1802000130
CONNECT TELECOM LLC$9,457
Mar 4, 2021Basement Lighting
6002000034
BECKSTEAD ELECTRIC INC$26,376
Mar 4, 2021Main Floor Lighting
6002000035
BECKSTEAD ELECTRIC INC$36,798
Feb 26, 2021#NCESD15 - TONASKET HS LOW VOLT DROPS TO IVF
TONASKET HIGH SCHOOL - #NCESD15
SCHMITT ELECTRIC INC$7,288
Feb 25, 2021#NCESD14 LOW VOLT DROPS TO IDF
TONASKET ELEM. LOW VOLT DROPS
SCHMITT ELECTRIC INC$4,418
Feb 25, 2021#NCESD-6 PATEROS SCHOOL CAT6 RUN
PATEROS SCHOOL - CAT6 RUN
SCHMITT ELECTRIC INC$1,530
Nov 20, 2020No Trespassing Signs
17386
GRAYBEAL SIGNS INC$1,537
Sep 1, 2020CASHMERE HS CCTV FIBER INSTALLATION
1801900254
SCHMITT ELECTRIC INC$10,510
Aug 13, 2020Retrofit Restroom Lights to LED
6001900141
BECKSTEAD ELECTRIC INC$2,745
Aug 11, 2020KITCHEN CIRCUIT & LIGHT FIXTURES
6001900142
BECKSTEAD ELECTRIC INC$5,960
Jun 25, 2020Okanogan data install
1801900266
CONNECT TELECOM LLC$13,655
Apr 27, 2020Compressor Replacement
6001900125
NORTH CASCADES HTG & AIR COND$3,939
Apr 17, 2020NCESD HVAC Maintenance 2019-2020
6001900116
NORTH CASCADES HTG & AIR COND$4,485
Apr 13, 2020Landscaping Installation Project 2020
6001900118
ROYS LAWN CARE & SNWPLWNG, INC$11,728
Mar 5, 2020Hardware install
22720
KEYHOLE SECURITY INC$1,378
Feb 28, 2020Floors/ General MaintApple-Pi Janitorial LLC—
Jan 30, 2020Hardware install
1282020
KEYHOLE SECURITY INC$1,814
Jan 30, 2020LIGHTING REPLACEMENT
6001900063
APPLE CITY ELECTRIC LLC$2,737
Jan 17, 2020HVAC CONTROLS
CO#1
NORTH CASCADES HTG & AIR COND$6,800
Dec 16, 2019Sign Program Remodel
6001900048
GRAYBEAL SIGNS INC$1,366
Dec 10, 2019(title withheld)
16612
GRAYBEAL SIGNS INC$767
Nov 14, 2019Third Floor Glass Replacement
6001900014
COMMUNITY GLASS COMPANY INC$4,000
Oct 21, 2019Sign Program Remodel
16463
GRAYBEAL SIGNS INC$3,592
Sep 23, 2019Access & Door Hardware Inst.
9232019-2
KEYHOLE SECURITY INC$36,724
Sep 17, 2019Nespelem data drops
1801800324
CONNECT TELECOM LLC$9,905
Aug 12, 2019Extend data run at Cashmere Vale and run data lines for cameras
1801800317
CONNECT TELECOM LLC$5,288
Aug 7, 2019Flush Valve Replacement
0260 60 7010 000 0000
GREG'S PLUMBING INC$2,778
Jun 3, 2019NCESD HVAC Maintenance 2018-2019
6001600076
NORTH CASCADES HTG & AIR COND$4,485
May 30, 2019Bareground Weed Treatment Parking lots
6001800120
ROYS LAWN CARE & SNWPLWNG, INC$786
May 30, 2019NCESD RenoBLEW'S CONSTRUCTION INC$1,384,960
May 29, 2019NCESD BUILDING
6001800018
GOLD CONSTRUCTION INC$2,699
May 23, 2019Painted Sprink Head Replacement
Fire Sprinkler Deficiency Corrections
PLUMBCO INC—
May 22, 2019LIGHTING UPGRADE
60018000089
APPLE CITY ELECTRIC LLC$6,480
May 15, 2019Landscaping Maintenance
6001800102
ROYS LAWN CARE & SNWPLWNG, INC$16,439
Jan 9, 2019NORTH CENTRAL ESD
PO # 6001800036
THYSSENKRUPP ELEVATOR CORP$4,400
Dec 12, 2018Lock Work
260137
KEYHOLE SECURITY INC—
Nov 21, 2018North Central ESD
6001800043
M VAIL COMPANY$69,362
Nov 6, 2018On Call JanitorialApple-Pi Janitorial LLC$10,000
Nov 5, 2018NCESD Dry Heads Replacement
6001800017
PLUMBCO INC$5,051
Sep 27, 2018Chip Seal Repair Employees Parking Lot
6001800023
A & W PAVING INC$5,908
Sep 13, 2018Additional Parking Sign
6001800021
GRAYBEAL SIGNS INC$706
Aug 17, 2018Staff Parking Sign
6001700203
GRAYBEAL SIGNS INC$706
Jul 31, 2018Bridgeport data drops
1801700328
CONNECT TELECOM LLC$7,560
Jul 30, 2018Omak Ap's
1801700329
CONNECT TELECOM LLC$24,890
Jul 24, 2018Bridgeport re-organize data
1801700316
CONNECT TELECOM LLC$4,559
Jun 15, 2018Bridgeport Portables
1801700278
CONNECT TELECOM LLC$2,673
Jun 11, 2018Tonasket School Dist.
1801700273
CONNECT TELECOM LLC$7,589
May 18, 2018Fire Sprinkler Replacement
6001700154
PLUMBCO INC$2,999
Apr 17, 2018NORTH CENTRAL ESD
6001700116
CRAWFORD AND SONS INC$8,000
Apr 9, 2018Annual Fire Sprinkler InspectionsPLUMBCO INC—
Feb 13, 2018(title withheld)
6001700093
APPLE CITY ELECTRIC LLC$5,400
Jan 29, 2018Interior Signage
1801700156
GRAYBEAL SIGNS INC$1,468
Jan 17, 2018Vale Elementary Part 2
1801700134
CONNECT TELECOM LLC$5,976
Jan 7, 2018NORTH CENTRAL ESD
6001300080
CRAWFORD AND SONS INC$3,464
Jan 2, 2018Vehicle Graphics
14408
GRAYBEAL SIGNS INC$650
Dec 18, 2017Cashmere High School Computer Lab
1801700120
CONNECT TELECOM LLC$2,905
Dec 12, 2017NCESD HVAC Maintenance 2017-2018
6001600076
NORTH CASCADES HTG & AIR COND$4,485
Dec 5, 2017Vale Elementary data drops
1801700101
CONNECT TELECOM LLC$6,860
Nov 28, 2017ESD 171, Admin & OfficesCHARLES H BERESFORD CO INC$29,705
Oct 12, 2017On call Janitorial/Floors
6001700023
Apple-Pi Janitorial LLC$4,710
Oct 9, 2017Carpet Cleaning
163552
CLEAN AIR CONNECT/CLEAN CONN$2,990
Oct 2, 2017NCESD Upgrade HVAC Controls
6001700038
NORTH CASCADES HTG & AIR COND$25,285
Sep 5, 2017Cashmere School/Vale data drops
1801600275
CONNECT TELECOM LLC$5,295
Aug 30, 2017Weekly Janitorial
600-17-00000
Apple-Pi Janitorial LLC$11,287
Aug 7, 2017Methow Valley School Dist.
1801600261
CONNECT TELECOM LLC$53,253
Jul 14, 2017PARKING LOT SWEEPING & BLOWING
6001500132
RIVERVIEW LANDSCAPING INC$927
Jul 6, 2017Install 32 drops at Bridgeport School Dist. portable
1801600240
CONNECT TELECOM LLC$3,174
Jun 23, 2017Backflow TestingPLUMBCO INC$605
May 9, 2017Access System Upgrade
1801600175
KEYHOLE SECURITY INC$3,441
Mar 28, 2017Annual Fire Sprinkler Inspection
6001600097
PLUMBCO INC$499
Mar 1, 2017NCESD Maintenance 2016-2017NORTH CASCADES HTG & AIR COND$4,485
Dec 12, 2016On Call Janitorial
6001500139
APPLE-PI JANITORIAL LLC$4,000
Oct 26, 2016Carpet Cleaning
162227
CLEAN AIR CONNECT/CLEAN CONN$2,928
Aug 21, 2016Parking Lot Rehab
6001500154
A & W PAVING INC$4,150
Jul 27, 2016(title withheld)
1801500248
CONNECT TELECOM LLC$8,520
Jun 27, 2016Soap Lake Schools
1801500242
CONNECT TELECOM LLC$114,546
May 25, 2016parking lot sweeping & power blowing
6001500132
RIVERVIEW LANDSCAPING INC$824
Apr 19, 2016NORTH CENTRAL ESD
6001300080
CRAWFORD AND SONS INC$4,537
Apr 19, 2016NORTH CENTRAL ESD
6001400084
CRAWFORD AND SONS INC$1,805
Mar 25, 2016INSTALL DEDICATED CIRCUIT
18609
APPLE CITY ELECTRIC LLC$963
Feb 8, 2016REPLACE (2) LED WALL PACKS
18226
APPLE CITY ELECTRIC LLC—
Jan 13, 2016Relocation of data racks at NCESD building
6001500045
CONNECT TELECOM LLC$2,289
Dec 16, 2015Sign Program
12265
GRAYBEAL SIGNS INC$2,209
Dec 10, 2015(title withheld)JIMMY'S ROOFING—
Dec 10, 2015Vehicle Graphics
12266
GRAYBEAL SIGNS INC$1,301
Nov 27, 2015On-Call Janitorial Services
509-665-2610
iPro Building Services LLC—
Nov 11, 2015NCESD Basement IT Room RevisionsNORTH CASCADES HTG & AIR COND$3,474
Nov 9, 2015SERVICE WORK
REPLCE ENTRY * PARKING LOT LAM
APPLE CITY ELECTRIC LLC—
Nov 9, 2015REPLACE LAMPS
TIME & MATERIALS
APPLE CITY ELECTRIC LLC—
Oct 27, 2015INSTALL RECEPTACLES ABOVE SERVER RACKS
02606070100000000
APPLE CITY ELECTRIC LLC$4,600
Aug 17, 2015Carpet Cleaning
6001400165
CLEAN AIR CONNECT/CLEAN CONN$2,990
Aug 12, 2015North Central ESD
6001500001
JIMMY'S ROOFING$54,922
Aug 10, 2015Sign Package
6001400166
GRAYBEAL SIGNS INC$5,305
Jul 24, 2015Soap Lake School Dist. addtional data drops
0
CONNECT TELECOM LLC$7,661
Jul 23, 2015Ephrata Schools move/add WAP
Ephrata Schools
CONNECT TELECOM LLC$13,422
Jul 3, 2015Painting 175 E. Penny Road, Wenatchee
6001400108
CW WALLPAPERING & PAINTING$4,878
Jul 1, 2015North Central ESD
509-665-2610
iPro Building Services LLC$335
Jun 29, 2015(title withheld)
6001400113
APPLE CITY ELECTRIC LLC$1,149
Jun 16, 2015NORTH CENTRAL ESD
600140084
CRAWFORD AND SONS INC$1,805
May 19, 2015SWEEPINGVITA GREEN LLC$682
May 15, 2015NORTH CENTRAL ESD
6001300080
CRAWFORD AND SONS INC$4,645
Apr 30, 2015Office Renovation
6001400103
HALE / LONG GEN CONTR INC—
Feb 23, 2015ELECTRICAL REPAIRS
17278
APPLE CITY ELECTRIC LLC—
Jan 6, 2015REPLACE LAMPS & BALLASTS
17034
APPLE CITY ELECTRIC LLC—
Nov 21, 2014NC ESD
6001400051
ABM JANITORIAL SVS-S CNTRL INC$4,800
Nov 4, 2014Head Start/Malaga location
1801400065
CONNECT TELECOM LLC$2,791
Oct 10, 2014RELOCATE FIXTURES AND DEMO POWER POLE AT PORT OF DOUGLAS COUNTY SITE
16672
APPLE CITY ELECTRIC LLC$1,718
Oct 1, 2014REPAIR/REPLACE PARKING LOT LIGHT.
16613
APPLE CITY ELECTRIC LLC—
Sep 24, 2014Carpet Cleaning
6001300103
CLEAN AIR CONNECT/CLEAN CONN$3,333
Sep 11, 2014INSTALL ELECTRICAL IN PONDEROSA ROOM
16424
APPLE CITY ELECTRIC LLC—
Aug 27, 2014Carpet Cleaning
6001300103
CLEAN AIR CONNECT/CLEAN CONN$3,174
Aug 20, 2014Okanogan School Dist. phone/data runs
1801300186
CONNECT TELECOM LLC$7,390
Jul 17, 2014Wirless access points for Waterville School District
1801300162
CONNECT TELECOM LLC$2,606
May 19, 2014NORTH CENTRAL ESD
60013000080
CRAWFORD AND SONS INC$4,645
Mar 4, 2014MAINTENANCE CONTRACTNORTH CASCADES HTG & AIR COND$11,985

Most recent first. Each amount is the figure declared on the prime contractor's intent; amounts are not added up. Project addresses are not published.

Contractors that filed intents on its projects

ContractorIntents on this agency's projects
A & W PAVING INC6
ABM JANITORIAL SERVICES3
APPLE CITY ELECTRIC LLC19
Apple-Pi Janitorial LLC11
BECKSTEAD ELECTRIC INC27
Blue Sky Window Service3
CLEAN AIR CONNECT/CLEAN CONN8
CompuNet, Inc.2
CONNECT TELECOM LLC63
CRAWFORD AND SONS INC8
DNM PLUMBING3
GOLD CONSTRUCTION INC7
GRAYBEAL SIGNS INC15
GREG'S PLUMBING INC3
Harvest Valley Pest Ctrl Inc3
iPro Building Services LLC11
KEYHOLE SECURITY INC38
NORTH CASCADES HTG & AIR COND16
NU-CLEAR BUILDING MAINTENANCE6
PLUMBCO INC14
ROYS LAWN CARE & SNWPLWNG, INC16
SALCIDO CONNECTION INC, THE3
SCHMITT ELECTRIC INC9
Streakless in Seattle3
THYSSENKRUPP ELEVATOR CORP7

Alphabetical order; the 25 contractors with the most filings on this agency's projects, prime and subcontractors together.