Top Series A companies in Austin

Companies that have closed a Series A — product-market fit confirmed and scaling. Filtered to companies headquartered in Austin.

Built from a search like: “Top Series A companies in Austin”

Ranked by current headcount across Series A companies headquartered in Austin. Refreshed daily.

1
Indeed· Austin, Texas, United States
- Series A
- 19.5k employees
- Founded 2004
2
Amherst· Austin, Texas, United States
- Series A
- 859 employees
- Founded 1993
3
Aspire· Austin, Texas, United States
- Series A
- 658 employees
- Founded 2014
4
SHI· Asten, North Brabant, Netherlands
- Series A
- 514 employees
- Founded 2015
5
Howdy.com· Austin, Texas, United States
- Series A
- 440 employees
- Founded 2018
6
Apptronik· Austin, Texas, United States
- Series A
- 361 employees
- Founded 2016
7
Tractive· Pasching, Upper Austria, Austria
- Series A
- 297 employees
- Founded 2012
8
CharterUP· Austin, Texas, United States
- Series A
- 265 employees
- Founded 2018
9
MyFitnessPal· Austin, Texas, United States
- Series A
- 260 employees
- Founded 2005
10
Happy Health· Austin, Texas, United States
- Series A
- 242 employees
- Founded 2019
11
Illumine-i· Austin, Texas, United States
- Series A
- 235 employees
- Founded 2015
12
Relive· Austin, Texas, United States
- Series A
- 215 employees
- Founded 2022
13
Darwin Homes· Austin, Texas, United States
- Series A
- 197 employees
- Founded 2018
14
GAMURS Group· Austin, Texas, United States
- Series A
- 183 employees
- Founded 2015
15
Zello· Austin, Texas, United States
- Series A
- 179 employees
- Founded 2012
16
HiddenLayer· Austin, Texas, United States
- Series A
- 168 employees
- Founded 2022
17
Mio· Austin, Texas, United States
- Series A
- 161 employees
- Founded 2015
18
mySugr· Vienna, Vienna, Austria
- Series A
- 151 employees
- Founded 2012
19
4M Analytics· Austin, Texas, United States
- Series A
- 148 employees
- Founded 2019
20
Decent· Austin, Texas, United States
- Series A
- 144 employees
- Founded 2018
21
Praetorian· Austin, Texas, United States
- Series A
- 142 employees
- Founded 2010
22
webAI· Austin, Texas, United States
- Series A
- 142 employees
- Founded 2020
23
Rules-Based Medicine, an IQVIA business· Austin, Texas, United States
- Series A
- 142 employees
- Founded 2002
24
Autonomize AI· Austin, Texas, United States
- Series A
- 129 employees
- Founded 2022
25
AI Clearing· Austin, Texas, United States
- Series A
- 124 employees
- Founded 2020

Find engineers at Series A companies in Austin

Series A companies in Austin are some of the fastest-moving employers in the market. The list above ranks the largest Series A-stage companies headquartered in Austin by current headcount, drawn from public LinkedIn and Crunchbase records. With 249 matching companies in our index, the density of senior engineers, designers, and founders is unusually high.

At Series A, teams tend to be small, ambitious, and on the hunt for senior talent. The companies on this list are good signals for where the Austintalent market is heating up — and for which engineers and founders are about to become tomorrow’s operators.

Refolk converts this list into a live search. Ask for “founders of Series A companies in Austin” or “senior engineers at Series A companies in Austin hiring” and Refolk returns a ranked shortlist with evidence behind each match.

How this list is built

Refolk pulled Series A companies headquartered in Austin from public LinkedIn and Crunchbase records, ranked them by current employee count, and kept those with at least 5 employees. The list refreshes once a day.

Last refreshed: Thu, 07 May 2026 07:00:01 GMT

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