Supplemental Government Contracts in Illinois
Explore supplemental government contracts across Illinois agencies. Top vendors, contract values, and procurement trends.
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Get alerts when new supplemental contracts are awarded or existing ones approach renewal in Illinois.
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Contract Database
Supplemental Contracts in Illinois
9 government contracts tracked
Legal Publishing approved for S-1 supplemental
AMERICAN LEGAL PUBLISHING CORPORATIONAmerican Legal Publishing approved for S-1 supplemental, cost not to exceed $2,500 to update municipal codes.
Barton & Loguidice supplemental for additional assistance
BARTON & LOGUIDICESupplemental No 1 with Barton & Loguidice is for additional time. Mayor Finney explained the additional time spent for a total of $7,000.
CA Group, Inc. Receives Funding for Sunset Park
CA GROUPSupplemental agreement approved for engineering services contract with CA Group, Inc. to increase total funds and extend the contract term for the Sunset Park project.
Volkert's $15,000 Contract Approved for Construction Work
VOLKERT INC.Volkert's revised contract, not to exceed $15,000, has been approved to start construction, put the construction documents together, get the permits and go out for bids this fall.
4 more contracts available
Track expirations and renewals for all supplemental contracts in Illinois.
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Leading Supplemental Vendors in Illinois
Vendors with the most supplemental contracts across Illinois agencies.
Top Agencies
Illinois Agencies Buying Supplemental
Government agencies with the highest supplemental contract activity.
Frequently Asked Questions
Supplemental Contracts in Illinois
How many Supplemental government contracts are there in Illinois?
Civic IQ tracks 9 supplemental government contracts across 4 agencies in Illinois representing $25K in total contract value. These contracts span 9 vendors and cover service agreements, technology implementations, infrastructure projects, and procurement awards. Contract details including amounts, terms, and renewal dates are updated as new data becomes available.
Which vendors have supplemental contracts in Illinois?
The leading vendors with supplemental government contracts in Illinois include: AMERICAN LEGAL PUBLISHING CORPORATION (1 contracts); BARTON & LOGUIDICE (1 contracts); CA GROUP (1 contracts); CEEC (1 contracts); DIVERSIFIED CONSULTING SERVICES (1 contracts). Tracking vendor contract wins, values, and agency relationships helps you understand the competitive landscape — whether you're evaluating vendors as an agency buyer or positioning against incumbents as a competitor.
Which Illinois agencies buy supplemental?
The most active Illinois government agencies procuring supplemental are: Clark County (6 contracts); Southern View village (1 contracts); City of Red Bud (1 contracts); Liverpool village (1 contracts). Each agency manages its own procurement process and vendor relationships. Understanding which agencies are the largest buyers helps vendors prioritize outreach and tailor their proposals to specific agency needs.
How do I find supplemental government contracts in Illinois?
Civic IQ aggregates supplemental contract data from 4 Illinois government agencies into a single searchable database. You can browse contracts by agency, vendor, value, status, and renewal date. Beyond active contracts, Civic IQ also tracks pre-RFP signals from board meetings and budget discussions — surfacing supplemental opportunities 6–18 months before formal solicitations go live.
What is the average value of supplemental contracts in Illinois?
Based on tracked contract data, the average supplemental government contract in Illinois is valued at approximately $3K, with 9 contracts totaling $25K. Individual contract values vary significantly depending on scope, agency size, and contract duration. Detailed value breakdowns by agency and vendor are available on Civic IQ.
What related contract categories are active in Illinois?
Beyond supplemental, other active government contract categories in Illinois include SUPPLIES, OTHER, PROFESSIONAL_SERVICES, MAINTENANCE, and CONSTRUCTION. Agencies often procure across multiple categories simultaneously — a city upgrading its IT infrastructure may also issue contracts for professional services, facilities maintenance, and cybersecurity. Tracking related categories helps you identify cross-selling opportunities and understand the full procurement landscape.
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