Issued / ready
#B200507100 · 10 S Riverside PlzNot supplied
Source status: Active
Work description & named contractors
Building work
CHICAGO FIRE DETECTION SYSTEMS LLC · Private Alarm Contractor
REX ELECT. & TECHNOLOGIES LLC · Electrical Contractor
Contractor name / Source history
Rex Elect. & Technologies Llc
Filings naming this contractor, across the public source's longer history.
Older filings have not been checked yet.
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Free account · five lookups per hour
Recent collected filings34
Earliest in these recordsJul 9, 2026
Latest in these recordsNov 2, 2026
This query uses the listed source name, ignoring letter case. Aliases and namesakes are not resolved, and this is not a company's verified complete work history. Dates mean issued / ready to issue. They do not establish construction start, completion, available bids, or work quality. Reported estimates are not added.
Filings by source date
Issued / ready
#B200516414 · 320 N Sangamon StNot supplied
Source status: Active
Work description & named contractors
View work details in the official source
REX ELECT. & TECHNOLOGIES LLC · Electrical Contractor
Issued / ready
#101089893 · 150 S Wacker Dr$59,000
Source status: Active
Work description & named contractors
Interior work · Demolition
REX ELECT. & TECHNOLOGIES LLC · Contractor-Electrical
PAUL BORG CONSTRUCTION CO INC · Contractor-General Contractor
GEHRETT PLUMBING, INC. · Contractor-Plumber/Plumbing
DEMCO · Contractor-Ventilation
Issued / ready
#B200512645 · 2 N Riverside PlzNot supplied
Source status: Active
Work description & named contractors
View work details in the official source
REX ELECT. & TECHNOLOGIES LLC · Electrical Contractor
Issued / ready
#101089429 · 151 N Franklin St$1,045,725
Source status: Active
Work description & named contractors
Demolition · Electrical · Plumbing
REX ELECT. & TECHNOLOGIES LLC · Contractor-Electrical
BIG CONSTRUCTION LLC · Contractor-General Contractor
HILL MECHANICAL CORP. · Contractor-Plumber/Plumbing
Issued / ready
#B200512748 · 2 N Riverside Plz$15,000
Source status: Active
Work description & named contractors
Electrical
REX ELECT. & TECHNOLOGIES LLC · Electrical Contractor
Issued / ready
#101087696 · 222 W Merchandise Mart Plz$12,500,000
Source status: Active
Work description & named contractors
Interior work · Demolition · HVAC · Electrical · Plumbing
REX ELECT. & TECHNOLOGIES LLC · Contractor-Electrical
BIG CONSTRUCTION LLC · Contractor-General Contractor
GREAT LAKES PLUMBING & HEATING · Contractor-Plumber/Plumbing
F.E. MORAN INC · Contractor-Ventilation
Issued / ready
#101088628 · 100 S Wacker Dr$100
Source status: Active
Work description & named contractors
Electrical
REX ELECT. & TECHNOLOGIES LLC · Contractor-Electrical
JC ANDERSON INC · Contractor-General Contractor
COMPETITIVE PIPING SYSTEMS · Contractor-Ventilation
Issued / ready
#B200508244 · 550 W Van Buren StNot supplied
Source status: Active
Work description & named contractors
View work details in the official source
ALLEGIANT FIRE PROTECTION LLC · Private Alarm Contractor
REX ELECT. & TECHNOLOGIES LLC · Electrical Contractor
Issued / ready
#B200510747 · 2 N Riverside PlzNot supplied
Source status: Active
Work description & named contractors
View work details in the official source
CONVERGINT TECHNOLOGIES LLC · Private Alarm Contractor
REX ELECT. & TECHNOLOGIES LLC · Electrical Contractor
Issued / ready
#101088004 · 222 W Merchandise Mart Plz$61,588
Source status: Active
Work description & named contractors
Interior work · Demolition · Electrical
REX ELECT. & TECHNOLOGIES LLC · Contractor-Electrical
BUSHMAN CONSTRUCTION MANAGEMENT, INCORPORATED · Contractor-General Contractor
Issued / ready
#B200513556 · 150 N Riverside Plz$14,500
Source status: Active
Work description & named contractors
Electrical
REX ELECT. & TECHNOLOGIES LLC · Electrical Contractor
Issued / ready
#101087076 · 875 N Michigan Ave$1,800,000
Source status: Active
Work description & named contractors
Interior work · Demolition · HVAC · Electrical · Plumbing
REX ELECT. & TECHNOLOGIES LLC · Contractor-Electrical
EXECUTIVE CONSTRUCTION , INC. · Contractor-General Contractor
SOUTH PARK PLUMBING INC · Contractor-Plumber/Plumbing
F.E. MORAN INC · Contractor-Ventilation
Issued / ready
#B200508979 · 311 S Wacker DrNot supplied
Source status: Active
Work description & named contractors
View work details in the official source
REX ELECT. & TECHNOLOGIES LLC · Electrical Contractor
Issued / ready
#101081675 · 810 E Hyde Park Blvd$10,600,000
Source status: Active
Work description & named contractors
Interior work
REX ELECT. & TECHNOLOGIES LLC · Contractor-Electrical
PINTAURO CONSTRUCTION COMPANY LLC · Contractor-General Contractor
J&E DUFF,INC · Masonry Contractor
BRANDENBURGER PLUMBING, INC. · Contractor-Plumber/Plumbing
SUN MECHANICAL SYSTEMS, INC · Contractor-Refrigeration
SUN MECHANICAL SYSTEMS, INC · Contractor-Ventilation
Issued / ready
#B200511539 · 311 S Wacker Dr$8,000
Source status: Active
Work description & named contractors
Electrical
REX ELECT. & TECHNOLOGIES LLC · Electrical Contractor
Issued / ready
#101087669 · 100 S Wacker Dr$150,000
Source status: Active
Work description & named contractors
Interior work · Demolition
REX ELECT. & TECHNOLOGIES LLC · Contractor-Electrical
PAUL BORG CONSTRUCTION CO INC · Contractor-General Contractor
GEHRETT PLUMBING, INC. · Contractor-Plumber/Plumbing
DEMCO · Contractor-Ventilation
Issued / ready
#B200511120 · 110 N Wacker DrNot supplied
Source status: Complete
Work description & named contractors
Electrical
CT MECHANICAL LLC · Other Contractor
REX ELECT. & TECHNOLOGIES LLC · Electrical Contractor
Issued / ready
#B200511448 · 550 W Van Buren St$45,635
Source status: Active
Work description & named contractors
Electrical
REX ELECT. & TECHNOLOGIES LLC · Electrical Contractor
Issued / ready
#B200510985 · 222 W Merchandise Mart Plz$20,000
Source status: Active
Work description & named contractors
Electrical
REX ELECT. & TECHNOLOGIES LLC · Electrical Contractor
Issued / ready
#B200476173 · 3900 N Lake Shore Dr$50,000
Source status: Active
Work description & named contractors
Electrical
REX ELECT. & TECHNOLOGIES LLC · Electrical Contractor
Issued / ready
#101086762 · 150 N Riverside Plz$350,000
Source status: Active
Work description & named contractors
Interior work
REX ELECT. & TECHNOLOGIES LLC · Contractor-Electrical
REDMOND CONSTRUCTION CORP. · Contractor-General Contractor
F.E. MORAN,INC. · Contractor-Plumber/Plumbing
F.E. MORAN INC · Contractor-Ventilation
Issued / ready
#101087918 · 100 S Wacker Dr$225,000
Source status: Active
Work description & named contractors
Interior work · Electrical · Plumbing
REX ELECT. & TECHNOLOGIES LLC · Contractor-Electrical
PAUL BORG CONSTRUCTION CO INC · Contractor-General Contractor
GEHRETT PLUMBING, INC. · Contractor-Plumber/Plumbing
DEMCO · Contractor-Ventilation
Issued / ready
#B200480933 · 222 W Merchandise Mart PlzNot supplied
Source status: Active
Work description & named contractors
View work details in the official source
CONVERGINT TECHNOLOGIES LLC · Private Alarm Contractor
REX ELECT. & TECHNOLOGIES LLC · Electrical Contractor
Issued / ready
#B200477048 · 100 S Wacker DrNot supplied
Source status: Active
Work description & named contractors
View work details in the official source
CHICAGO FIRE DETECTION SYSTEMS LLC · Private Alarm Contractor
REX ELECT. & TECHNOLOGIES LLC · Electrical Contractor
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Planning rows link to the City Clerk, ADU or Plan Commission source; their checked scope is shown on Planning. Application rows link to the public status portal and retain its separate date meanings. Permit source: City of Chicago Building Permits ↗. Queries cover available source filings from January 1, 2006, with up to 5,000 newest records. Voided/revoked permits are excluded by the source. Historical lookups stay separate from daily alerts and do not expand citywide coverage.