Middesk
Middesk provides business identity verification tools for companies onboarding other businesses, helping them assess risk and compliance. The 157-person company has raised $77M, including a Series B in 2022 backed by Sequoia and Accel.
The growth story
Middesk grew from 57 to 157 employees between 2022 and 2026, raising $77M along the way, most recently a Series B in June 2022.
About
Middesk sells APIs and infrastructure that lets companies verify the identity of other businesses during onboarding, focusing on risk management and compliance workflows. Its tools are used by any company that works with business clients, particularly where transaction speed and fraud prevention matter.
The company was founded in 2019 and has grown to 157 employees. Its $77M funding includes a 2022 Series B with investors like Sequoia and Accel, though recent headcount growth data is unavailable.
Founders and leadership
Engineering is the largest function with 39 staff. The leadership team includes alumni from Checkr and Yotpo, reflecting a focus on risk and compliance technology.
The Middesk org chart
Kyle Mack (CEO and Co-founder) leads 49 mapped leaders with 2 direct reports. Click +N to expand a team; names link to the person’s public profile.
Departments, and which ones grew
Headcount by function: Engineering 48 (+41% YoY), Sales 37 (+48% YoY), Product Management 12 (0% YoY), Business Development 10 (+11% YoY), Customer Success and Support 9 (+13% YoY), Operations 8 (+14% YoY).
Talent flow
15% of Middesk's workforce came from background check provider Checkr, with smaller cohorts from EY and Morgan Stanley. Alumni frequently move to fintech and AI firms like OpenAI, Plaid, and Harvey.
Most common previous employers of Middesk staff: Checkr (15), EY (5), Yotpo (4), Morgan Stanley (4), Petal (3), Yext (3). Former Middesk employees most often moved to OpenAI (5), SpaceXAI (2), Onclaim (2), Parafin (2), Plaid (2), Harvey (2).
Alumni worth knowing
The Middesk mafia
Six alumni have founded companies, including Baselayer (32 staff) and Riveter (9 staff). Two founders launched Onclaim, a risk assessment startup with 3 employees.
7Jonathan Awad, was Growth until 2023Abby Grills, was Staff Product Manager, Business Verification until 2024Ian Harriman, was Head of Partnerships & GM of Entity until 2025Sean McCann, was Business Line Lead, Entity Management until 2025Jay McGrath, was Revenue Leader until 2025Shafan Khan, was Enterprise Account Executive, FinTech until 2025
Yves S., was Product Designer until 2025Hiring now
Web traffic
Traffic mix: 52% direct, 25% search, 2% social, 0% paid.
What this company is made of
Most common skills at Middesk: Microsoft Excel (62), Microsoft Office (57), Leadership (53), Python (Programming Language) (48), SQL (46), JavaScript (41), Customer Service (40), Research Skills (39).
Where the team actually sits
Middesk people are concentrated in New York, United States (57), California, United States (32), New York City Metropolitan Area (17), San Francisco Bay Area (14).
Search footprint
Middesk attracts about 12,700 organic search visits a month, traffic worth roughly $113K a month if bought through ads. It gained 2,788 ranking keywords and lost 1,036 in the last period.
What employees say
- Compensation
- 3.60 / 5
- Career opportunities
- 3.70 / 5
- Senior management
- 3.60 / 5
- Work-life balance
- 3.80 / 5
Frequently asked
Middesk has 157 employees as of September 2026.
Middesk has raised $77M in total, most recently a Series B round in June 2022.
Middesk was founded in 2019 by Kyle Mack, Kurt Ruppel.
Kyle Mack (CEO and Co-founder) sits at the top of Middesk's reporting structure, with 2 direct reports.
The most common previous employers of current Middesk staff are Checkr (15 people), EY (5 people), Yotpo (4 people).
Former Middesk employees most often move to OpenAI (5), SpaceXAI (2), Onclaim (2).
At least 6 companies have a founder who previously worked at Middesk, including Baselayer, Riveter, Onclaim.
Middesk attracts about 12,700 organic search visits a month, worth roughly $113K a month in equivalent ad spend.
The most common skills among Middesk staff are Microsoft Excel, Microsoft Office, Leadership, Python (Programming Language), SQL.
Middesk staff are concentrated in New York, United States (57), California, United States (32), New York City Metropolitan Area (17).
Middesk has about 48 people in Engineering, up 41% over the past year, as of September 2026.
Middesk has about 37 people in Sales, up 48% over the past year, as of September 2026.
Computed from 138 current and 128 former Middesk profiles, as of September 2026. Source: Crustdata.
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