Q-CTRL

Software DevelopmentDarlington, New South Wales, AustraliaFounded 2017213 employees$133M raised

Q-CTRL develops AI-powered infrastructure software for quantum computing. The Sydney-based company has raised $133M, most recently in a Series B round in October 2024, and employs 213 people.

+600%
Open roles are up 600% year over year, at 7 today.
+53%
Research is Q-CTRL's fastest-growing team over the past year, now 49 people.
5
5 companies were started by ex-Q-CTRL people.
Employees
213
Total raised
$133M
Last: Series B
Open roles
7
+600% vs last year
Site visitors
49K
per month
Alumni founders
5
companies started

The growth story

Q-CTRL headcount and funding213 people today
213$25M$27M$2M$1M$59M213202120222023202420252026
Data by CrustdataCrustdata

Q-CTRL grew from 56 to 213 employees between 2021 and 2026, raising $133M along the way, most recently a Series B in October 2024.

About

Q-CTRL builds software that helps manage and optimize quantum computing systems. Its tools are used by organizations working with quantum technology to improve performance and reliability.

The company has grown rapidly since its 2017 founding, securing major funding from investors including Airbus Ventures and DCVC. Its engineering team makes up nearly 30% of its workforce, reflecting its technical focus.

Founders and leadership

Engineering is Q-CTRL's largest function with 63 staff. The company is led by a technical team with backgrounds in quantum physics and software development.

The Q-CTRL org chart

Michael Biercuk (CEO & Founder) leads 45 mapped leaders with 7 direct reports. Click +N to expand a team; names link to the person’s public profile.

Departments, and which ones grew

Headcount by functiongrowth vs 12 months ago
EEngineering
89+41%
RResearch
49+53%
AArts and Design
8+60%
IInformation Technology
70%
PProduct Management
70%
HHuman Resources
6+50%
BBusiness Development
6-14%
EEntrepreneurship
5-17%
MMarketing
40%
Data by CrustdataCrustdata

Headcount by function: Engineering 89 (+41% YoY), Research 49 (+53% YoY), Arts and Design 8 (+60% YoY), Information Technology 7 (0% YoY), Product Management 7 (0% YoY), Human Resources 6 (+50% YoY).

Talent flow

Q-CTRL recruits heavily from Australian universities, particularly the University of Sydney and Australian National University. Its alumni have moved to tech companies like Canva and AWS, and some have founded quantum-focused startups.

Where Q-CTRL people come from, and where they go163 current + 101 former profiles
14 people: Baraja → Q-CTRL10 people: The Australian National University → Q-CTRL10 people: University of Sydney → Q-CTRL6 people: The University of Queensland → Q-CTRL5 people: IBM → Q-CTRL4 people: HRL Laboratories → Q-CTRL4 people: National Institute of Standards and Technology (NIST) → Q-CTRL4 people: Atlassian → Q-CTRL4 people: Q-CTRL → Canva3 people: Q-CTRL → Amazon Web Services (AWS)2 people: Q-CTRL → Google2 people: Q-CTRL → Performl1 people: Q-CTRL → Slack1 people: Q-CTRL → Innovation Bay1 people: Q-CTRL → Main Sequence1 people: Q-CTRL → Future Secure AIQ-CTRL213 peopleCAME FROMWENT TOBaraja14 peopleThe Australian Nati…10 peopleUniversity of Sydney10 peopleThe University of Q…6 peopleIBM5 peopleHRL Laboratories4 peopleNational Institute …4 peopleAtlassian4 peopleCanva4 peopleAmazon Web Services…3 peopleGoogle2 peoplePerforml2 peopleSlack1 peopleInnovation Bay1 peopleMain Sequence1 peopleFuture Secure AI1 people
Data by CrustdataCrustdata

Most common previous employers of Q-CTRL staff: Baraja (14), The Australian National University (10), University of Sydney (10), The University of Queensland (6), IBM (5), HRL Laboratories (4). Former Q-CTRL employees most often moved to Canva (4), Amazon Web Services (AWS) (3), Google (2), Performl (2), Slack (1), Innovation Bay (1).

Alumni worth knowing

The Q-CTRL mafia

Five Q-CTRL alumni have founded companies, mostly in quantum technology. These include Iceberg Quantum (15 staff) and Analog Quantum Circuits (9 staff).

Felix ThomsenTom StaceHarrison BallTabish BidiwaleMarcus Cramer5
founders left Q-CTRL and started 5 companies, employing 33 people between them

15 employees
Felix Thomsen, was Quantum Control Engineer until 2020
Tom Stace, was Principal / Lead Quantum Control Engineer until 2022
8 employees
Harrison Ball, was Head Of Research until 2021
Tabish Bidiwale, was Senior Software Engineer until 2025
M
MCBH UG
 
Marcus Cramer, was Quantum Business Lead - Europe until 2021

Hiring now

Software EngineerSenior Mechanical TechnicianSenior Embedded Software EngineerSenior Compiler Software EngineerSenior Compiler Engineer

Web traffic

q-ctrl.com monthly visitors-10% month over month
34,10156,23578,36849,112202420252026
Data by CrustdataCrustdata

Traffic mix: 26% direct, 65% search, 6% social, 1% paid.

What this company is made of

Headcount by skillwhat people list on their profiles
PPython (Programming Language)
105
MMATLAB
58
RResearch Skills
55
DData Analysis
47
CC++
45
CC (Programming Language)
42
PPhysics
41
LLeadership
40
PProject Management
37
SSoftware Development
35
Data by CrustdataCrustdata

Most common skills at Q-CTRL: Python (Programming Language) (105), MATLAB (58), Research Skills (55), Data Analysis (47), C++ (45), C (Programming Language) (42), Physics (41), Leadership (40).

Where the team actually sits

Headcount by regionHQ: Darlington, New South Wales, Australia
NNew South Wales, Australia
65
GGreater Sydney Area
25
CCalifornia, United States
23
AAustralia
10
UUnited States
8
LLos Angeles Metropolitan Area
4
AAustralian Capital Territory, Australia
4
EEngland, United Kingdom
3
Data by CrustdataCrustdata

Q-CTRL people are concentrated in New South Wales, Australia (65), Greater Sydney Area (25), California, United States (23), Australia (10). 4 offices on record.

Search footprint

Organic clicks
880
per month
Traffic worth
$5K
if bought as ads
Ranking keywords
1,053
Ads budget
$14K
per month

Q-CTRL attracts about 880 organic search visits a month, traffic worth roughly $5K a month if bought through ads. It gained 190 ranking keywords and lost 108 in the last period.

What employees say

Compensation
4.60 / 5
Career opportunities
4.80 / 5
Senior management
4.80 / 5
Work-life balance
4.80 / 5

Frequently asked

How many employees does Q-CTRL have?

Q-CTRL has 213 employees as of September 2026.

How much has Q-CTRL raised?

Q-CTRL has raised $133M in total, most recently a Series B round in October 2024.

Who founded Q-CTRL?

Q-CTRL was founded in 2017 by Michael Biercuk.

Who is the CEO of Q-CTRL?

Michael Biercuk (CEO & Founder) sits at the top of Q-CTRL's reporting structure, with 7 direct reports.

Where does Q-CTRL hire from?

The most common previous employers of current Q-CTRL staff are Baraja (14 people), The Australian National University (10 people), University of Sydney (10 people).

Where do Q-CTRL employees go after leaving?

Former Q-CTRL employees most often move to Canva (4), Amazon Web Services (AWS) (3), Google (2).

What companies were founded by ex-Q-CTRL employees?

At least 5 companies have a founder who previously worked at Q-CTRL, including Iceberg Quantum, Analog Quantum Circuits, Performl.

How much traffic does Q-CTRL get from search?

Q-CTRL attracts about 880 organic search visits a month, worth roughly $5K a month in equivalent ad spend.

What skills do people at Q-CTRL have?

The most common skills among Q-CTRL staff are Python (Programming Language), MATLAB, Research Skills, Data Analysis, C++.

Where is Q-CTRL's team located?

Q-CTRL staff are concentrated in New South Wales, Australia (65), Greater Sydney Area (25), California, United States (23).

How big is Q-CTRL's engineering team?

Q-CTRL has about 89 people in Engineering, up 41% over the past year, as of September 2026.

How big is Q-CTRL's research team?

Q-CTRL has about 49 people in Research, up 53% over the past year, as of September 2026.

Computed from 163 current and 101 former Q-CTRL profiles, as of September 2026. Source: Crustdata.

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