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LeadWave
Updated October 2026

220 SaaS Companies in Illinois (2026)

LeadWave's database lists 220 SaaS companies headquartered in Illinois, with the most in Chicago. Marketing is the most common category among them. Below are the largest, with their headcount, funding, LinkedIn and CEO.

Companies
220
In LeadWave's database, October 2026
Total funding raised
$3.3B
Across 91 funded companies
Median headcount
33
Of 146 with a known headcount
Median year founded
2013
Of 196 with a known year

The largest SaaS companies in Illinois

The top 30 of 220, strongest matches first, then by size. Headcount is the latest known figure.

The largest SaaS companies in Illinois
CompanyWebsiteEmployeesHeadcountFundingLinkedInCEO
1Paylocitypaylocity.com1,001–5,0003,970$10MLinkedInSteven Beauchamp
2Mu Sigmamu-sigma.com1,001–5,000——LinkedInDhiraj Rajaram
3Relativityrelativity.com1,001–5,000——LinkedInMikhail Kogan
4CCC Information Servicescccis.com1,001–5,0001,901$150MLinkedInHolly Beggs
5Boomiboomi.com1,001–5,0001,357$4.9MLinkedInSteve Lucas
6Sprout Socialsproutsocial.com501–1,000968$111.5MLinkedInJustyn Howard
7ActiveCampaignactivecampaign.com501–1,000962$360MLinkedInJason VandeBoom
8iManageimanage.com501–1,000904—LinkedInNeil Araujo
9Cheetah Digitalcheetahdigital.com501–1,000896$21.1MLinkedInSameer Kazi
10VelocityEHSehs.com501–1,000——LinkedInMatt Airhart
11project44project44.com501–1,000706$397.5MLinkedInJett McCandless
12Cyxteracyxtera.com501–1,000677—LinkedInNelson Fonseca
13FourKitesfourkites.com501–1,000577$201.5MLinkedInMathew Elenjickal
14ShipBobshipbob.com501–1,000553$330.5MLinkedInDhruv Saxena
15Strata Decisionstratadecision.com201–500550—LinkedInJohn Martino
16Arc XParcxp.com201–500——LinkedInMatthew Monahan
17Copadocopado.com201–500——LinkedInTed Elliott
18Productive Edgeproductiveedge.com201–500——LinkedInWyatt Kapastin
19Trintechtrintech.com201–500——LinkedInTeresa Mackintosh
20Cleocleo.com201–500313$3.5MLinkedInMahesh Rajasekharan
21Aprimoaprimo.com201–500300$61.5MLinkedInErik Huddleston
22Uptakeuptake.com201–500289$218MLinkedInBrad Keywell
23Jellyvisionjellyvision.com201–500281$25MLinkedInAmanda Lannert
24Telnyxtelnyx.com201–500281$2.1MLinkedInDavid Casem
25Foodafooda.com201–500239$34.2MLinkedInShane Jones
26Vibesvibes.com201–500238$60MLinkedInAlex Campbell
27Keeper Securitykeepersecurity.com201–500234$60.3MLinkedInDarren Guccione
28LogicGatelogicgate.com201–500207$34.8MLinkedInMatt Kunkel
29Civis Analyticscivisanalytics.com51–200194$52.7MLinkedInDan Wagner
30ILANTUSilantus.com51–200193$276.7KLinkedInArun Singh

SaaS companies in Illinois at a glance

  • Chicago is home to 81% of them (179 companies).
  • The largest is Paylocity, with 3,970 employees.
  • 91 have disclosed funding, $3.3B in total; 9 raised $100M or more.
  • Half were founded before 2013, and 7% in 2020 or later.
Top citiesShare of 220 companies with a known headquarters
  • Chicago179 · 81%
  • Addison6 · 3%
  • Schaumburg6 · 3%
  • Glenview4 · 2%
  • Northbrook4 · 2%
  • Berwyn2 · 1%
Top categoriesCompanies in Illinois on each industry list
Company sizeEmployees, for 219 companies with a known size
  • 1–1059 · 27%
  • 11–5073 · 33%
  • 51–20059 · 27%
  • 201–50014 · 6%
  • 501–1,0009 · 4%
  • 1,001–5,0005 · 2%
  • 5,001–10,0000 · 0%
  • 10,000+0 · 0%
Year foundedFor 196 companies with a known founding year
  • Before 200016 · 8%
  • 2000–200940 · 20%
  • 2010–201456 · 29%
  • 2015–201971 · 36%
  • 2020–202211 · 6%
  • 2023 or later2 · 1%
Funding raisedTotal disclosed funding, for 91 companies
  • Under $1M21 · 23%
  • $1M–5M22 · 24%
  • $5M–10M11 · 12%
  • $10M–50M17 · 19%
  • $50M–100M11 · 12%
  • $100M–500M9 · 10%
  • $500M–1B0 · 0%
  • $1B+0 · 0%

How this list was built

A company is on this list if its headquarters, as recorded in LeadWave's database, is in Illinois. The state comes from the company's HQ city or address.

The data comes from LeadWave's database of SaaS and AI companies, last updated in October 2026. Companies that share a website are counted once. Headcount, funding and CEO come from public sources, so some fields are blank for smaller companies.

More SaaS company lists

Frequently asked questions

LeadWave's database lists 220 SaaS companies in Illinois as of October 2026. This page shows the 30 largest; the full list, with CEO contacts, is part of our 15,000+ SaaS companies list.