Nonantum Capital Partners

What Nonantum Capital Partners does

Nonantum Capital Partners is a Boston-based private equity firm founded in 2018 as a spin-out from Charlesbank Capital Partners. The firm invests in lower middle market North American companies, deploying equity checks of $25M-$100M into family- and founder-owned businesses, corporate carve-outs, and complex situations, primarily within consumer products, industrials, and business services. Portfolio companies target enterprise values of $50M-$500M and EBITDA of $10M-$40M.

Name

Nonantum Capital Partners

Legal name

Nonantum Capital Partners, LLC

Website

https://nonantumcapital.com

Company type

Private

Founded year

2018

Operating status

Operating

Headcount range

11–50 employees

Short description

Nonantum Capital Partners is a Boston-based, lower middle market private equity firm investing $25M-$100M equity checks in family/founder-owned businesses, corporate carve-outs, and complex situations across consumer, industrial, and business services in North America.

Ownership category

akta.pro rank

Product category

Private Equity Investment Management

NAICS

Other Financial Investment Activities (5239), Portfolio Management and Investment Advice (523940)

SIC

Investment Advice (6282)

akta.pro primary industry

Small-Cap / Micro-Buyout (FSANABAD)

Keywords

• Middle market private equity
• Control buyout investing
• Corporate carve-outs
• Founder-owned business investing
• Private equity fund management

Headquarters

HQ city

Boston

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Technology or R&D, Infrastructure

Revenue model

1. Management Fees: Private equity management fees from limited partner capital commitments. Fund I raised $350M in LP commitments (April 2018). Fund II raised $575M in LP commitments (January 2022).
2. Carried Interest: Performance-based carried interest from successful portfolio company exits and value creation. The firm's investment strategy focuses on generating significant equity value creation through organic growth and acquisitions in family/founder-owned businesses and corporate carve-outs.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

Nonantum Capital Partners is a boutique private equity firm that invests in lower middle market companies through control buyouts of $25M–$100M equity checks, targeting businesses with $50M–$500M enterprise values and $10M–$40M EBITDA. The firm raises capital from institutional limited partners (endowments, foundations, family offices, pension funds) and deploys it into family- and founder-owned businesses, corporate carve-outs, and complex situations across consumer, industrials, and business services sectors in North America. Nonantum earns revenue through management fees on committed fund capital and carried interest from successful portfolio company exits.

Product overview

Nonantum Capital Partners is a boutique private equity firm offering investment management services to limited partners. The firm operates two private equity funds: Fund I ($350M, closed April 2018) and Fund II ($575M, closed January 2022). The firm targets equity investments of $25M–$100M per company in family- and founder-led businesses, corporate carve-outs, and complex situations, primarily in consumer products, industrials, and business services sectors across North America, with typical enterprise values of $50M–$500M.

Differentiator

Problem solved

Functional benefit

Products and services

• Fund I Nonantum Capital Partners' inaugural private equity fund, closed at its hard cap of $350 million in limited partner capital commitments in April 2018. The fund targets control buyout investments in lower middle market companies with $50M-$500M enterprise values and $10M-$40M EBITDA, focused on family- and founder-owned businesses, corporate carve-outs, and complex situations across consumer, industrials, and business services sectors in North America.
• Fund II Nonantum Capital Partners' second private equity fund, closed at its hard cap of $575 million in limited partner capital commitments in January 2022. The fund continues the firm's strategy of investing in founder-led businesses and corporate carve-outs in consumer, industrial, and business services sectors, with typical equity checks of $25M-$100M per portfolio company.

Quantifiable outcome

• Named to Inc.'s Founder-Friendly Investors List for three consecutive years (2023, 2024, 2025)

Named customers7 records

Segments6 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Two partnerships are on record, tiered core and minor.

• Flatiron Search PartnerscoreStrategic or Co-development Partner · 14 January 2026Nonantum announced a growth partnership with Flatiron Search Partners, an executive search and talent advisory firm serving consumer-focused businesses. Founded in 2018 by consumer-industry entrepreneurs Bill Stauffer and Joe Miller, Flatiron supports private equity-backed and growth-stage consumer businesses as a long-term talent advisor. The partnership brings strategic support, operating expertise, and infrastructure to enhance Flatiron's continued expansion while preserving its culture, leadership, and approach.
• Goodwin (legal counsel)minorImplementation/ SI/ Consulting PartnerGoodwin served as legal counsel to Nonantum in completing the MSI Express investment. Nonantum was advised by Goodwin Procter in multiple portfolio acquisitions including ProVest, MSI Express, Helix Traffic Solutions, Ross-Simons, and LJP Waste Solutions.

Scale indicators8 records

Recent moves7 records

Expansion highlights5 records

Direct peers

• Audax Private Equity: Audax is a lower middle-market private equity firm targeting control buyouts of North American companies with $10M-$50M EBITDA. It runs a systematic add-on acquisition strategy similar to Nonantum's industrial and business services portfolio approach, and Julia Diaz (VP at Nonantum) previously worked at Audax.
• Riverside Partners: Riverside Partners is a Boston-based middle-market private equity firm investing in healthcare, technology, and business services companies with $20M-$100M EBITDA. It is highly comparable to Nonantum in geography, fund size, and lower middle-market focus.
• Wynnchurch Capital: Wynnchurch is a middle-market private equity firm specializing in operational value creation across industrial, business services, and consumer transactions. Its $1B+ fund sizes and focus on complex situations and corporate carve-outs closely mirror Nonantum's strategy.
• Trinity Hunt Partners: Trinity Hunt is a Dallas-based lower middle-market private equity firm partnering with founder- and family-owned businesses, corporate carve-outs, and management transitions. Its thesis around partnership-driven investing in the lower middle market directly parallels Nonantum's positioning.
• NewSpring Capital: NewSpring Capital is a lower middle-market private equity firm investing across business services, consumer, and industrial sectors. Its check sizes, founder/family-owned orientation, and platform-plus-add-on approach make it a strong comparable to Nonantum.
• Wind Point Partners: Wind Point Partners is a Chicago-based middle-market private equity firm investing in consumer products and business services. Charlie Spokes (SVP at Nonantum) previously worked at Wind Point, and the firms share a similar consumer/services orientation.
• LongueVue Capital: LongueVue Capital is a lower middle-market private equity firm focused on control buyouts in consumer, industrial, and business services. Gavriella Smith (Summer Analyst at Nonantum) previously interned at LongueVue, and the firms share similar lower middle-market check sizes and sector focus.
• Kainos Capital: Kainos Capital is a Dallas-based private equity firm focused on lower middle-market food, consumer, and retail businesses. Its consumer sector focus and platform investment approach in food and consumer products directly overlaps with Nonantum's MSI Express and Ross-Simons investments.
• Huron Capital: Huron Capital is a Detroit-based lower middle-market private equity firm partnering with founders and management teams across business services, consumer, and industrial sectors. Its thesis around operational value creation in partnership with founders closely aligns with Nonantum's positioning.

Broad incumbents

• Centerbridge Partners: Centerbridge is a larger, established alternative investment firm operating across private equity and credit strategies, including middle-market control investments. While much larger in AUM and broader in mandate, its middle-market PE practice overlaps with Nonantum's deal universe in industrials and consumer.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/nonantum-capital-partners

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles15 records

Subsidiaries7 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A5 records

Investments2 records

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Nonantum Capital Partners