A breakdown of the 1.5K+ companies running Kafka Streams.
Top industries
Information technology and services714
Financial services240
Professional and business services147
Media and telecommunications67
Industrial and manufacturing62
Art, sports and recreation56
Education and training33
Retail trade33
No industry recorded: 46
Company size
1–1079 (5%)
11–50152 (10%)
51–250287 (20%)
251–500168 (12%)
501–1,000118 (8%)
1,001–5,000251 (17%)
5,001–10,000105 (7%)
10,001+293 (20%)
Share of companies with a recorded size, by employees.
No size recorded: 83
One dataset. Four ways to sell.
Match the deepest technology intelligence against the most comprehensive data on companies and people – such as who is growing, raised capital or changed role – for pinpoint precision on GTM campaigns.
Competitor displacement
Find the accounts running a competitor today and go after them with the right argument.
Complementary tools
Target companies whose stack sits alongside yours and integrates without a fight.
Service partners
Identify implementers and agencies already working in the technologies you support.
Market insights
Map your total addressable market and track aggregated trends such as AI maturity.
Frequently asked questions
About the Kafka Streams data on this page.
How many companies use Kafka Streams?
Firmable holds confirmed Kafka Streams detections for 1,536 distinct companies, 332 of them confirmed in the last 90 days. A company is counted once however many of its properties run it.
Which companies use Kafka Streams?
Roundel, Great Hill Partners and Raft are among the most prominent in the current set.
What industries use Kafka Streams?
Information technology and services, financial services and professional and business services lead the set, across 19 industries in total.
What size companies use Kafka Streams?
Adoption concentrates in the 10,001+ employee band, across the companies whose size is recorded.
Where are Kafka Streams users based?
The United States, Canada, Australia and Singapore account for most detections, across 13 countries.
How current is this data?
332 companies were confirmed in the last 90 days. Last detection 19 September 2026.