O2 Investment Partners

Name

O2 Investment Partners

Legal name

O2 Investment Partners, LP

Website

https://o2investment.com

Company type

Private

Founded year

2010

Operating status

Operating

Headcount range

11–50 employees

Ownership category

akta.pro rank

Product category

Private Equity Fund Management

NAICS

Other Investment Pools and Funds (5259), Portfolio Management and Investment Advice (52394)

SIC

Investment Advice (6282), Services-Management Consulting Services (8742)

akta.pro primary industry

Business Services (B2B) Growth Equity (FSANACAD)

akta.pro secondary industry

Media, Entertainment & Gaming Growth Equity (FSANACAI)

Keywords

• Private equity firm
• Lower middle market investing
• Buy-and-build acquisitions
• Management buyouts
• Growth capital investing

Headquarters

HQ city

Bloomfield Hills

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, Others

Revenue model

1. Private equity fund management (management fees and carried interest): O2 Investment Partners generates revenue through management of limited partner capital commitments across its private equity funds. Fund V closed at $670 million in capital commitments and Fund IV closed at $445 million. The firm's principals co-invest equity in every transaction alongside LPs, aligning interests. Revenue derives from management fees on committed/invested capital and carried interest on realized investment gains.

Go-to-market motion4 records

Distribution channels3 records

Marketing channels4 records

Core offering

O2 Investment Partners is a private equity firm that acquires majority interests in lower middle market businesses generating $100 million to $450 million or more in annual revenue across B2B services, technology, and select industrial sectors. The firm pursues a buy-and-build platform strategy, partnering with management teams to acquire and consolidate fragmented industries through add-on acquisitions. Its capital is sourced from institutional limited partners via closed-end flagship funds, with Fund V as its most recently raised vehicle.

Product overview

O2 Investment Partners is a Midwestern-based private equity firm (Bloomfield Hills, Michigan), not a single technology product but a buy-and-build investment platform operating across lower middle market B2B services, technology, and select industrial companies. The firm’s core offering is its private equity funds (most recently Fund V at $670 million, oversubscribed in March 2026) which are deployed into a decentralized portfolio of platform investments that are then scaled through both organic growth and serial add-on acquisitions. The current portfolio includes named platforms such as Atlas Asphalt, Steffl Drilling & Pump, Dynamic Drain Technologies, Harley Exteriors, Azureon, Straightaway Tire & Auto, Centex Construction, 4M Building Solutions, Orchestra, Modular Devices, Stronghouse Solutions, Xobee, unWired Broadband, Flip Electronics, SIB Fixed Cost Reduction, FCAH Aerospace, and Denbright Dental Labs, each operating as an independent branded business unit. Within each platform, O2 also funds tuck-in acquisitions (for example, Azureon's 11 pool-care add-ons, Straightaway's 12 automotive repair acquisitions since mid-2025, and 4M Building Solutions' cleaning/janitorial roll-ups) to build market-leading regional and national platforms. Former portfolio companies that have been exited include Mantis Innovation Group, Vessco Holdings, MHC Software, NTI Connect, EIS Holdings, Greco Aluminum Railings, Silbond, and Alpha Precision Group. The firm was founded in 2010, has completed over 100 transactions, and follows a "honoring entrepreneurs" investment philosophy of partnering with founder- and family-owned management teams.

Differentiator

Problem solved

Functional benefit

Brands

• Atlas Asphalt: Maintenance paving services for commercial customers.
• Steffl Drilling & Pump
• Dynamic Drain Technologies
• Harley Exteriors
• Azureon
• Straightaway Tire & Auto
• Centex Construction
• 4M Building Solutions
• Orchestra
• Modular Devices
• Stronghouse Solutions
• Xobee
• unWired Broadband
• Flip Electronics
• SIB
• FCAH Aerospace
• Denbright Dental Labs

Products and services

• Fund IV A closed-end private equity fund that acquires majority interests in lower middle market businesses generating $100M-$450M+ in revenue across B2B services, technology, and select industrial sectors; offered to institutional limited partners.
• Fund V O2 Investment Partners' current flagship private equity fund, raised from institutional investors and used to acquire majority stakes in lower middle market B2B services, technology, and industrial companies via a buy-and-build strategy.
• Buy-and-Build Platform Investments Majority equity investments in operating companies, paired with a programmatic add-on acquisition strategy, provided to founder- and family-owned businesses seeking a partner for growth and ownership transition.

Quantifiable outcome

• Closed oversubscribed Fund V at $670 million in five-month fundraising process
• +6 more outcomes

Named customers17 records

Segments5 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

23 partnerships are on record, tiered flagship, strategic and core.

• Atlas AsphaltflagshipStrategic or Co-development Partner · 1 May 2026O2 Investment Partners invested in and partnered with Atlas Asphalt in May 2026, headquartered in Islandia, NY. Atlas was founded in 1988 and is led by second-generation owners Tyler and Jordan Cianciulli. Atlas provides a full suite of paving services (asphalt paving, concrete paving, sealcoating, crack filling, line striping & marking, parking signage, drainage repair) to commercial and residential customers across 20+ states. Deal aims to establish a dominant paving platform in the Northeast.
• Steffl Drilling & PumpflagshipStrategic or Co-development Partner · 1 April 2026O2 Investment Partners invested in and partnered with Steffl Drilling & Pump in April 2026. Founded in 1978 in Minnesota, Steffl provides water well drilling and repair services (repair, replacement, maintenance, new well installation, PFAS remediation, geothermal) to municipal, agricultural, commercial, and residential customers in the Upper Midwest. CEO Sam Steffl continues to lead. Deal aims to build a leading nationwide water well drilling platform.
• Dynamic Drain TechnologiesflagshipStrategic or Co-development Partner · 1 October 2025O2 invested in Dynamic Drain Technologies and founder Nick Santoni to support rapid growth. DDT is a leading provider of critical and aging wastewater infrastructure services, specifically trenchless pipe rehabilitation, CCTV pipe inspection, and pipe clearing services for multi-family, higher-education, commercial, municipal, and other end markets.
• Harley ExteriorsflagshipStrategic or Co-development Partner · 1 August 2024O2 invested in and partnered with Harley Exteriors and founder Christian Daher in August 2024 to support rapid growth. Harley is a premier provider of replacement window, door, and gutter services for residential customers in the Pacific Northwest. Subsequent partnership with Custom Remodelers, Inc. (November 2025).
• Centex ConstructionflagshipStrategic or Co-development Partner · 1 July 2024O2 partnered with Centex Construction and founders Mark Whitehead, Mark Herbert, and David Borne in July 2024 to support rapid growth. Centex is a leading provider of renovation, restoration, and maintenance services for large-scale multi-family property managers and owners. Subsequent add-on partnership with One Way Property Restoration. CFO Jeff Wonsmos appointed.
• Azureon (Pool Services Platform)flagshipStrategic or Co-development Partner · 1 June 2024O2 formed its pool services platform in June 2024, formally branded as Azureon in October 2024, uniting five founding companies: The Aqua Doctor, Chaikin Ultimate Pools, Cool Pool & Spa, Gorlin Pools and Spas, and Rainbow Pools. Azureon has executed 11+ acquisitions to date (including Pelican Pools, Northern Pool & Spa, Bona Pools, Northstar, Precision Pool & Spa) and is led by CEO John Tisera with full executive team across the Northeast U.S.
• Straightaway Tire & AutoflagshipStrategic or Co-development Partner · 1 January 2023O2 formed the Straightaway Tire & Auto platform by partnering with All County Automotive, Auto Care Plus, EAS Tire & Auto, Victory Automotive Service, and Village Autoworks. The platform has grown to 87 locations nationwide via 12 strategic acquisitions since June 2025 (K Motion Auto Service, Antero Automotive, Stillwater Auto Clinic, Burnsville Auto Repair, Reliable Auto Care, AutoPro Auto Service, Silverlake Automotive, and others) across Colorado, Idaho, Florida, Maine, Massachusetts, Minnesota, New Hampshire, and Wisconsin. CEO John Teddy appointed May 2024; COO Brian Bates appointed later.
• 4M Building SolutionsflagshipStrategic or Co-development Partner · 1 December 2022O2 invested in 4M Building Solutions in December 2022 with CEO Tim Murch. 4M is a premier full-service commercial cleaning, janitorial, and housekeeping services company headquartered in St. Louis, MO, founded in 1978. Operating in 27 states with over 7,000 team members providing daily environmentally friendly cleaning to 228 million square feet across industrial/manufacturing, logistics/distribution, education, healthcare, senior living, and corporate segments. Multiple add-on acquisitions including LCS Facility Group, Capital Services, Hi-Tec, Thario, Covenant Building Service, Miracle Clean, FKI Cleaning, Calvary Building Services, Brokate Janitorial. CEO Leonard Carder appointed as successor to Tim Murch.
• Xobee NetworksflagshipStrategic or Co-development Partner · 1 March 2022O2 portfolio company Xobee Networks is an industry-leading, vertically-integrated managed IT and cloud services platform. Originally part of unWired Broadband portfolio, Xobee has executed multiple partnerships including Telco Business Solutions (October 2025), Tidal Communications (October 2025), and Exceedio. CRO Scott Brueggeman and CFO Jeffrey Bergman appointed.
• Orchestra (formerly BerlinRosen Holdings)flagshipStrategic or Co-development Partner · 1 January 2022O2 made a significant investment in BerlinRosen in January 2022 with Co-Managing Principals Jonathan Rosen and Valerie Berlin. BerlinRosen Holdings rebranded to Orchestra in April 2024 as a strategic communications and marketing company network of eight leading agency partners with more than 600 employees from 12 cities across North America and Europe. Add-on acquisitions include Derris, Glen Echo Group, Onward, M18 PR, Inkhouse, Message Lab, Small Girls PR, and Civitas Public Affairs Group.
• Modular DevicesflagshipStrategic or Co-development Partner · 1 January 2022O2 invested in Modular Devices and President & CEO Greg Mink in January 2022 to support continued growth. Modular Devices is a leading provider of mobile and modular medical imaging equipment labs and cleanroom solutions throughout the United States. Add-on acquisitions include Cardiac Services Mobile, Interim Diagnostic Imaging, Flow Cleanrooms & Supply, Technical Air Products, and Transcend Imaging. COO Charlie Wemhoff appointed as first COO.
• Stronghouse Solutions (formerly Capital Construction Holdings)flagshipStrategic or Co-development Partner · 1 November 2021O2 invested in Capital Construction in November 2021 with CEO Andy Oakes. Rebranded to Stronghouse Solutions. National leader in roofing and exterior home services with multiple add-on acquisitions including Marshall Building & Remodeling, Infinity Roofing & Siding, Options Exteriors, Linear Roofing, Irish Roofing & Exteriors, Gustafson Roofing, and Centurion Exteriors. CEO Russ Reynolds appointed. CFO Andy Colmone appointed.
• unWired BroadbandflagshipStrategic or Co-development Partner · 1 July 2021O2 made a significant investment in unWired Broadband in July 2021. Headquartered in Fresno, California, unWired is one of the largest fixed wireless internet service providers in the country, serving over 22,000 customers across rural areas in Central Valley with a network of over 167 towers. CEO Matt Murphy appointed October 2024.
• EIS Holdings (Environmental Infrastructure Solutions)strategicStrategic or Co-development Partner · 1 March 2021O2 formed EIS Holdings through 1 Priority Environmental Services, Earth Services & Abatement, and Snyder Environmental partnership in 2019-2020. EIS is a provider of mission-critical environmental and infrastructure services including abatement, decontamination, and remediation. Add-on acquisitions include Simpson Environmental Services and Potomac Abatement. Sold to Sun Capital Partners affiliate (July 2021).
• SIB Fixed Cost ReductionflagshipStrategic or Co-development Partner · 1 March 2020O2 acquired SIB Fixed Cost Reduction in March 2020 as a platform for Fund III. SIB provides invoice analysis, vendor negotiation, and cost monitoring across numerous cost categories for customers across various end markets. Platform has executed 7+ add-on investments since 2020 including Cost Control Associates, Fox Consulting Group, Shipware, Sage Management, GETIDA, Vector97, and ProcureAmerica. CEO Kevin Flounders appointed.
• FCAH Aerospace (First Class Air Holdings)flagshipStrategic or Co-development Partner · 1 February 2020O2 invested in First Class Air Support and Cargo Repair in February 2020 with management team led by Isac Roths. FCAH Aerospace distributes aftermarket aircraft components and performs FAA certified maintenance, repair, and overhaul work with focus on cargo and structural airframe systems. Add-on acquisitions include Aviation Inflatables & Survival Products, Air Cargo Equipment, Innodyne Systems, and Cobalt Aero Services. Leadership: COO Amy Merkley (MRO Services), President Mike Abram (Cobalt Aero Services).
• Denbright Dental Labs (formerly Frontier Dental Lab Group)flagshipStrategic or Co-development Partner · 1 July 2019O2 invested in Frontier Dental Laboratories in July 2019 with Brent West and Gil Villavecer. Rebranded to Denbright Dental Labs — a network of seven leading dental labs with more than 700 employees from 16 cities across the U.S. and Canada. Provides high-end dental prosthetics, removable dental products, and implants. Add-on acquisitions include NuArt Dental, Friendship Dental Laboratories, D&S Dental Laboratory, Burbank Dental Laboratory, and Dental Lab Aesthetics. CEO David Casper appointed. CCO Greg Minzenmayer appointed.
• Vessco (formerly Vessco Holdings)strategicStrategic or Co-development Partner · 1 November 2018O2 partnered with Dick Corbett, Brian DeWolf and the Vessco team in November 2018. Vessco is a leading water and wastewater treatment technology supplier serving municipal and industrial markets. Add-on acquisitions include Kennedy Industries, Dorner Products. CEO Brian DeWolf appointed. Sold to Gryphon Investors (November 2020).
• NTI Connect (formerly National Technologies)strategicStrategic or Co-development Partner · 1 May 2018O2 invested in National Technologies (NTI), headquartered in West Chicago, Illinois, in October 2015 with founder and CEO Brian James. NTI Connect provides best-in-class fiber optic, wireless, and network integration services to the telecommunications industry. Additional investment in CCSI Networks (July 2016) and Fairhaven Integration Services (May 2017). Sold to ORIX Capital Partners (December 2018).
• Kirkland & Ellis LLPcoreImplementation/ SI/ Consulting PartnerKirkland & Ellis LLP provided legal counsel for O2 Investment Partners on the closing of Fund V ($670 million) and previously Fund IV ($445 million). Kirkland advised on the fund formation.
• Craig-HallumstrategicImplementation/ SI/ Consulting PartnerCraig-Hallum served as the financial advisor to Steffl Drilling & Pump in its transaction with O2 Investment Partners to build a nationwide water well drilling and repair services platform.
• Protegrity AdvisorsstrategicImplementation/ SI/ Consulting PartnerProtegrity Advisors served as the exclusive M&A advisor to Atlas Asphalt in its acquisition by O2 Investment Partners.
• Flip ElectronicsflagshipStrategic or Co-development PartnerO2 invested in Flip Electronics (headquartered in Alpharetta, Georgia), an authorized specialty distributor of obsolete electronic components to U.S. and international customers. Flip offers 20,000+ SKUs through authorized OEM relationships. Board members include Dennis Segers and Gerry Fay. Recent additions include Todd McAtee as Global CRO (March 2026) and David Kalinske to Board of Directors (February 2026). Acquisition of Resurgent Semiconductor (February 2023) and partnership with Ampleon.

Scale indicators9 records

Recent moves13 records

Expansion highlights6 records

Direct peers

• H.I.G. Capital: Large lower middle market private equity firm with mid-market, growth equity, and special situations funds, focused on B2B services, healthcare, and consumer. Referenced repeatedly in O2's team backgrounds (Derek Wardlaw, Rob Hays), making it a directly comparable fund manager in the same niche.
• Shore Capital Partners: Chicago-based lower middle market PE firm specializing in micro-cap buyouts and founder-led business services, healthcare services, and consumer companies, with a similar partnership-driven model and add-on acquisition cadence.
• Huron Capital: Detroit-based lower middle market private equity firm executing buy-and-build platforms in business services, consumer, and healthcare, with a similar Midwest operating base and founder-friendly partnership model to O2.
• Audax Group: Boston-based lower middle market private equity firm executing a buy-and-build strategy in B2B services, healthcare services, and specialty industrials, with similar fund sizes, vertical focus, and add-on acquisition cadence to O2 Investment Partners.
• Sterling Investment Partners: Lower middle market PE firm focused on founder/family-owned businesses in business services, consumer, and healthcare with operating value-creation playbooks comparable to O2's vertical-specific platform approach.
• Wellspring Capital Management: New York-based lower middle market PE firm focused on consumer products and services, niche manufacturing, and B2B services with operationally intensive value-creation, comparable in fund size and vertical breadth to O2.
• Levine Leichtman Capital Partners: Los Angeles-based lower middle market PE firm investing in B2B services, consumer, and education with a similar founder/family partnership approach. Rob Hays, O2's Head of IR, previously co-headed IR at LLCP, making it a direct operational comparable.
• The Riverside Company: Globally-focused lower middle market private equity firm with a buy-and-build investment model across B2B services, niche manufacturing, healthcare, and technology, operating funds of comparable size to O2's vehicles.
• Boyne Capital: Miami-based lower middle market PE firm with a founder-friendly model targeting B2B services, consumer, and industrial niches. Derek Wardlaw, O2's Head of Business Development, previously led business development at Boyne Capital, making it a directly comparable peer.

Broad incumbents

• Genstar Capital: San Francisco-based private equity firm with overlapping B2B services, financial services, healthcare, and industrial software exposure; while larger and more institutionally focused than O2, it competes in similar lower middle market sourcing and broadly comparable vertical niches.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/o2-investment-partners

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Subsidiaries17 records

Funding overview

Funding rounds

Investors

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

M&A7 records

Investments23 records

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

Frequently asked questions about O2 Investment Partners