Nonantum Capital Partners

Investor type

PE

Founded

2018

AUM

$575 M

Location

Boston, Massachusetts, United States

Investment Ticket

$50-100 m

Investment Stage

Series B Late Stage (Series C+)

Region of investment

North America
Investor profile last updated: 16 August, 2026

Profile

Nonantum Capital Partners is a private equity firm based in Boston, formed in 2018 as a spin-out from Charlesbank Capital Partners. The firm is led by a group of experienced private equity and management executives. They focus on investing in lower middle market companies with untapped potential, particularly family- and founder-owned businesses and corporate carve-outs. Nonantum emphasizes personal partnerships to drive equity value creation, leveraging their decades of experience in management and investments.

The firm targets sectors such as consumer services, B2B services, healthcare services, and manufacturing, focusing on Firm partnerships to unlock value in complex situations. Nonantum typically invests across North America with target equity checks ranging from $25M to $100M, servicing enterprises with a typical value of $50M to $500M. Their latest fund, Fund II, totals $575M.

Notable investments include partnerships with veteran companies and market leaders, like Flatiron Search Partners, a consumer-focused search firm. Additionally, they've acquired MSI Express, a leading co-manufacturing and co-packaging services company. These investments reflect their strategic focus on growth and expansion in core markets.

Industry

Industrial Consumer Products Manufacturing CleanTech Energy Business Services (B2B) Consumer Services (B2C) Healthcare Services Food and Beverage Foodtech Transportation

Nonantum Capital Partners Funds

Name Type
Questionare
Industry
Questionare
Stage
Questionare
Region
Size AUM Launch date
Fund II
Private Equity (PE)
Food and Beverage
Foodtech
Transportation
Energy
CleanTech
Business Services (B2B)
Consumer Services (B2C)
Healthcare Services
Manufacturing
Series B
Late Stage (Series C+)
North America
Europe
$5-10 m
$575 M
January 2022

Contacts

Name
Title
Email
avatar
Julia Diaz Vice President
Vice President
j•••@•••
avatar
Charlie Spokes Senior Vice President
Senior Vice President
c•••@•••
Upgrade to see contacts
avatar
7dD0Ha48whcylvji 7dD0Ha48whcylvji
7dD0Ha48whcylvji
avatar
7dD0Ha48whcylvji 7dD0Ha48whcylvji
7dD0Ha48whcylvji
avatar
7dD0Ha48whcylvji 7dD0Ha48whcylvji
7dD0Ha48whcylvji
Investment-team contacts for Nonantum Capital Partners — including verified work emails and LinkedIn profiles — are available to Private Equity List subscribers.
Instant access on the web. Plans from $129/month — see pricing.
Contacts sourced from the firm's website and LinkedIn, re-verified on a rolling cycle. Spot a stale contact, or none at all? Report it — we re-run that firm within 48h and get back to you.

FAQs about Nonantum Capital Partners

Nonantum Capital Partners is a private equity firm. It backs companies at Series B and Late Stage (Series C+), writing tickets of $50-100 m.
Nonantum Capital Partners is located in Boston, Massachusetts, United States.
Nonantum Capital Partners was founded in 2018.
Nonantum Capital Partners invests in companies and startups in Industrial, Consumer Products, Manufacturing, CleanTech, Energy, Business Services (B2B), Consumer Services (B2C), Healthcare Services, Food and Beverage, Foodtech, Transportation.
Nonantum Capital Partners invests in companies and startups in North America.
Nonantum Capital Partners invests in companies and startups at Series B, Late Stage (Series C+).
Nonantum Capital Partners usually invests $50-100 m on average.
Nonantum Capital Partners has around $575m assets under management.
Nonantum Capital Partners last fund was created/launched in 2022-01-31
Nonantum Capital Partners can be reached through its website nonantumcapital.com and its LinkedIn page. Its general enquiries address is [email protected]. Cold-mailing a general inbox rarely reaches a partner, so Private Equity List also lists the investment-team contacts for Nonantum Capital Partners — names, roles, verified work emails and LinkedIn profiles — available on a Pro plan from $129/month (see pricing). Contacts are sourced from the firm's website and LinkedIn and re-verified on a rolling cycle. Spot a stale contact, or none at all? Report it — we re-run that firm within 48h and get back to you.
Yes. Every field on this page — profile, funds, investment criteria, portfolio and investment-team contacts — is available programmatically through the Private Equity List REST API and MCP server, so AI assistants such as Claude and ChatGPT can query Nonantum Capital Partners directly instead of scraping this page. One subscription covers both the web app and machine access — see API & MCP.
Private Equity List re-verifies investor profiles on a rolling cycle, pulling from the firm's own website and LinkedIn rather than a one-off import. This profile was last updated on 16 August, 2026. Something out of date here? Report it — we re-run that firm within 48h and get back to you.