Company lists · Data refreshed September 2026

Top 25 Startup software development firms based in Chicago, United States

Name: Startup software development firms based in Chicago, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 84 companies tracked

RevenueBase identified 84 startup software development firms headquartered in Chicago, United States as of September 2026 and tracks 1,112 professional contacts across them, including 250 with verified work emails. Across the United States, New York is the largest hub for this category (318 companies); Chicago has 84.

This list covers startup software development firms headquartered in Chicago, United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 29, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 29, 2026 86% judged on-target in blind review

84Companies

1,112Contacts tracked

250Verified emails

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The 25 largest startup software development firms based in Chicago, United States

Ranked by team size

Top 25 of 84 startup software development firms based in Chicago, United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to startup software development firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Codingcops	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	201-500	241 contacts →
	Partial evidence “CodingCops is a full-cycle technology partner that helps businesses design, build, scale, and maintain software systems with confidence.” Source: RevenueBase Database · checked Sep 29, 2026
2	KLIKA	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	201-500	190 contacts →
	Indirect evidence “Building technology and custom solutions that define user experiences has established Klika's reputation worldwide.” Source: RevenueBase Database · checked Sep 29, 2026
3	Intersog	Strong evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	51-200	117 contacts →
	Strong evidence “Intersog® is a Chicago-based provider of software engineering, custom development, and IT consulting solutions.” Source: RevenueBase Database · checked Sep 29, 2026
4	Techavidus	Strong evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	51-200	101 contacts →
	Strong evidence “TechAvidus delivers AI-powered custom software, web, and mobile application development services for startups, SMEs, and large enterprises.” Source: RevenueBase Database · checked Sep 29, 2026
5	Farshore Partners	Strong evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	51-200	100 contacts →
	Strong evidence “FarShore Partners (FSP) is a full-service Custom Software & Product Development Design agency.” Source: RevenueBase Database · checked Sep 29, 2026
6	Aptlylabs	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	11-50	24 contacts →
	Partial evidence “Empower your startup's vision by partnering with us to craft robust technology infrastructure tailored to your unique needs.” Source: RevenueBase Database · checked Sep 29, 2026
7	Phycom, INC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	1-10	20 contacts →
	Partial evidence “At Phycom, we don't just develop software – we get things done.” Source: RevenueBase Database · checked Sep 29, 2026
8	Vault Innovation Group	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	11-50	15 contacts →
	Partial evidence “VAULT offers custom software solutions, digital experiences and growth services for tech-enabled businesses, entrepreneurs and visionaries.” Source: RevenueBase Database · checked Sep 29, 2026
9	Devvela	Strong evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	11-50	15 contacts →
	Strong evidence “We are a full-cycle custom software development agency with the main focus on digitizing processes, elevating ecommerce, and connecting products to the cloud.” Source: RevenueBase Database · checked Sep 29, 2026
10	Prudence	Strong evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	11-50	13 contacts →
	Strong evidence “Custom Software Development: We specialize in delivering custom software development for both startups and established companies, tailored to meet your unique needs.” Source: RevenueBase Database · checked Sep 29, 2026
11	Calibrate Software	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	11-50	10 contacts →
	Indirect evidence “Calibrate designs and builds websites, mobile apps, and enterprise solutions in a cost effective and scalable manner.” Source: RevenueBase Database · checked Sep 29, 2026
12	Techcells	Strong evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	51-200	8 contacts →
	Strong evidence “TechCells is a fast growing tech company offering custom software development and tailored IT outstaffing services.” Source: RevenueBase Database · checked Sep 29, 2026
13	Click5 Interactive LLC	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	11-50	7 contacts →
	Indirect evidence “Based in downtown Chicago, click5 Interactive is a small (but growing) team of creative technologists.” Source: RevenueBase Database · checked Sep 29, 2026
14	Amplify Tech Labs	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	1-10	6 contacts →
	Partial evidence “At Amplify Tech Labs, we don’t just build software-we drive measurable results.” Source: RevenueBase Database · checked Sep 29, 2026
15	Chicago Software Solutions C S S	Strong evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	11-50	5 contacts →
	Strong evidence “Chicago Software Solutions (C\|S\|S) is a dynamic leader in custom software development and technology consulting with over 17 years of experience.” Source: RevenueBase Database · checked Sep 29, 2026
16	Ophanic	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	1-10	3 contacts →
	Partial evidence “At Ophanic, we specialize in creating tailored software solutions designed to empower businesses and streamline operations.” Source: RevenueBase Database · checked Sep 29, 2026
17	Orbitz Technologies	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	11-50	3 contacts →
	Partial evidence “Orbitztechs, a top software solutions provider based in the US, helps clients deliver scalable products using the latest techs and trends.” Source: RevenueBase Database · checked Sep 29, 2026
18	Tecture, LLC	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	11-50	3 contacts →
	Indirect evidence “We build the data-driven, design-savvy web business solutions that make your business bulletproof.” Source: RevenueBase Database · checked Sep 29, 2026
19	Kreate	Indirect evidence	Chicago, United StatesHQ checked Sep 29, 2026	11-50	2 contacts →
	Indirect evidence “Kreate is a full-service digital agency built to help businesses grow through bold branding, modern web design, and smart technology.” Source: RevenueBase Database · checked Sep 29, 2026
20	Stackrelease	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	11-50	1 contacts →
	Partial evidence “We make technology ideas VISUAL \| FUNCTIONAL \| SCALABLE StackRelease is made up of software professionals who've led teams down the project road countless times.” Source: RevenueBase Database · checked Sep 29, 2026
21	XUPE	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	1-10	1 contacts →
	Partial evidence “Xupe is a modern web and mobile application design and development agency.” Source: RevenueBase Database · checked Sep 29, 2026
22	Def0x	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	1-10	1 contacts →
	Partial evidence “We help startups, small businesses and entrepreneurs move forward in the right direction.” Source: RevenueBase Database · checked Sep 29, 2026
23	Simply Business Apps, INC	Indirect evidence	Chicago, United StatesHQ checked Sep 29, 2026	1-10	1 contacts →
	Indirect evidence “At Simply Business Apps, we're all about making impactful web and mobile apps for small and medium-sized businesses.” Source: RevenueBase Database · checked Sep 29, 2026
24	Grapeseed Designs	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	1-10	1 contacts →
	Partial evidence “GrapeSeed Designs is a digital design consulting studio that works with tech startups taking a new product to market.” Source: RevenueBase Database · checked Sep 29, 2026
25	Code Green Development	Strong evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	1-10	1 contacts →
	Strong evidence “Founded in 2010 and based in Chicago, Illinois - Code Green Development is a software development consulting company that provides custom solutions from enterprise applications…” Source: RevenueBase Database · checked Sep 29, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: startup software development firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names startup software development firms.
Partial evidence: Its own public description names part of startup software development firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name startup software development firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 84 startup software development firms based in Chicago, United States

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Startup software development firms based in Chicago, United States at a glance

As of Sep 29, 2026

22.5%Verified-email coverage

13.2Average contacts per company

11-50Median size (employees)

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

Email recency for this list is measured across the whole United States list rather than for Chicago, so it is reported there. Company counts and contact totals on this page are exact for Chicago, over 84 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among startup software development firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Chicago, United States whose own description of what they do matches “startup software development firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names startup software development firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among startup software development firms, and records with no verified work email. Companies headquartered outside Chicago are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 250 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 29, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Startup software development firms by metro in the United States

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names startup software development firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many startup software development firms are there based in Chicago, United States?

RevenueBase identified 84 startup software development firms headquartered in Chicago, United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Codingcops, headquartered in Chicago, tops this list with the largest team on record.

Which city in the United States has the most startup software development firms?

New York leads the United States with 318 headquartered companies, followed by Austin (182) and San Francisco (147). Chicago has 84.

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 250 verified decision-maker contacts tracked across these 84 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 29, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.