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M33 Growth

Medium
Boston, United States · Website
Growth capitalActive lead investorPartnering with bootstrapped entrepreneursAI
Last verified
11/11/2026

Firm Overview

25
Portfolio tracked
1
Sectors
0
Regions
11/11/2026
Last verified

M33 Growth seeks to partner with bootstrapped entrepreneurs by providing capital and resources to accelerate growth. The firm focuses on building a concentrated portfolio, often serving as the active lead investor to help businesses develop into market leaders.

M33 seeks to partner with ambitious bootstrapped entrepreneurs by providing both capital and resources to accelerate growth and develop their already-great businesses into market leaders. The firm provides opportunities for founders to take some chips off the table, allowing them to partially de-risk for a rainy day while continuing to share in the upside.

The firm intentionally builds a concentrated portfolio so that each company is not a small fish in a big pond. They aim to help founders capitalize on the opportunities presented by AI versus falling to the sidelines.

The firm's name, Mach 33, refers to the speed at which an object reaches escape velocity and breaks out of the gravitational pull of the Earth. This reflects their approach to helping companies reach escape velocity through an ecosystem of current and former executives.

HeadquartersBoston, United States
StrategiesGrowth capital, Active lead investor, Partnering with bootstrapped entrepreneurs
Sector focusAI

Leadership

Mike Anello
Founder
Similar to Sean Connery, has successfully swam from Alcatraz Island.
Gabe Ling
Founder
Performed in a sold out concert with the Aula Symfonia Jakarta in 2022.
Brian Shortsleeve
Founder
Sailed from San Diego to Kuwait (12k mi) in a 1965-era Navy ship without A/C.
Rachel Carducci
CFO
Worked security at campus concerts during college to get better seats for shows.
Andrew Pearsons
Value Creation Partner
Chased down and apprehended a thief during an MBA admissions interview.
Kara Hollis
Executive Director
Heroes include Moira Rose, Michael Gary Scott, Liz Lemon, and Mary Berry.
Ryan Kubacki
Operating Partner
Leading multiple successful exits as a CEO, investor, and board member.
Tom Guilfoile
Principal
Has a shellfishing license and spends free time harvesting clams from Cape Cod.
Lauren Slutsky
Head of Talent
Was publicly condemned at a book club for not liking the chosen book.
Chris Petersen
Product / AI
Independent consultant focused on product strategy and developing high-functioning product management teams.
Chris Puzzo
Engineering / AI
20+ years experience building software and leading teams across every area of the stack.
Bryan Maloney
Engineering / AI
Software Engineering Leader and Spotify + Venmo Alum.
Venkatramanan PK
Engineering / AI
Data centric AI Leader that have built and managed high performing teams from scratch across the globe.
Danielle Zimmerman
Customer Success/Growth
20+ years in B2B SaaS leading customer success, professional services, and growth teams.
Tommy Belton
Vice President
Prior jobs include handyman’s apprentice and au pair in Florence, Italy.
Meghan Curtis
Vice President
Once sold-out Boston’s infamous Paradise Rock Club as a member of a cover band.
Hannah Quartner
Vice President
Was a member of an improv comedy troupe in college that performed across the country.
Erik Hoffstadt
Vice President, Value Creation
Ran a half marathon underwater (on a treadmill, on a submarine).
Kelly Potvin
Vice President, Value Creation
Wrote her honor’s thesis on the economic impact of super teams in the NBA in 48 hours.

Portfolio on record

Portfolio by sector
  • B2B Software15 of 25
  • Healthcare6 of 25
  • Unclassified4 of 25

25 portfolio companies on record in the index, grouped by sector hub.

Current and exited
Current: 18 of 25Exited: 7 of 25
Portfolio size among all firms

25 companies on record, more than 43% of the 405 firms in the index.

0885 companies (log scale)

Portfolio Companies

CompanySectorStatusWebsite
AIApogee InteractiveVertical SoftwareCurrentNot on record
AAssuricareVertical Software & HealthcareExitedNot on record
BBeSmarteeVertical SoftwareCurrentNot on record
BSBFC SoftwareVertical SoftwareCurrentNot on record
CDClear DemandVertical SoftwareCurrentNot on record
CContruentNot on recordExitedNot on record
ESEnergy SoftwareVertical SoftwareExitedNot on record
GGoDocsVertical SoftwareCurrentNot on record
LLeading2LeanVertical SoftwareCurrentNot on record
LLukeHealthcareCurrentNot on record
MMizeNot on recordExitedNot on record
OSO3 SolutionsVertical SoftwareCurrentNot on record
OOperixVertical SoftwareCurrentNot on record
PHPediatrica Health GroupHealthcareCurrentNot on record
PPerformLineVertical SoftwareCurrentNot on record
RreebeeNot on recordExitedNot on record
RRosnetVertical SoftwareCurrentNot on record
SSmartKargoVertical SoftwareCurrentNot on record
SCSwift ComplyVertical SoftwareCurrentNot on record
TThanxVertical SoftwareCurrentNot on record
OIThe Oncology Institute of Hope & InnovationHealthcare ServicesExitedNot on record
TCTitan CloudNot on recordExitedNot on record
TSTotal SynergyVertical SoftwareCurrentNot on record
USU.S. Neurology AssociatesHealthcareCurrentNot on record
YYAPIVertical Software & HealthcareCurrentNot on record

Source: https://m33growth.com/companies

Firms that also back M33 Growth's companies

Co-investor web
M33 GrowthThe Riverside CompanyThe Riverside Company: 1 shared companies on record

Line width shows shared portfolio companies on record in the index. Top 1 co-investors shown.

This profile is based on publicly available information and may be incomplete or outdated. PE Firm Index is not affiliated with M33 Growth and does not provide investment advice.

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