Family office backed growth investor in business services
Erie Street Growth Partners
Formerly Erie Street Capital
- HeadquartersChicago, IL S6
- Founded2018 S1
- Websiteeriestreet.com
- Last verifiedNovember 6, 2026
At a glance
| Deal types | Growth, Add-on S7 |
|---|---|
| Sectors | IT Services & MSP, Accounting & Professional Services |
What Erie Street Growth Partners buys
Erie Street Growth Partners is a Chicago investment firm founded in 2018 by Terry Graunke, a longtime services executive. It backs founder-led business services companies, mainly in marketing, communications, technology and entertainment, and it presents itself as an alternative to traditional private equity. The team works closely with each company on talent, growth, operations and M&A. In 2024 it said its partnerships represented more than $2 billion of enterprise value.
The money comes from more than 45 family offices, which can decide how and where to invest through co-investments. Erie Street does not describe a committed fund, and it publishes no revenue, EBITDA or check size range. Its one sized deal is a $15 million commitment to AI consultancy Quantum Rise in July 2024. Its other current partners are 50,000feet, Trailer Park Group and APCO Worldwide. A smaller firm could meet it as an add-on: 50,000feet bought Long Dash in 2024, and Quantum Rise bought Brazil-based Dhauz in February 2026.
Recent deals
Announced in the 24 months before November 6, 2026.
| Date | Company | Type | Sector | Source |
|---|---|---|---|---|
| Feb 2026 | DhauzBrazil-based data science and engineering firm added to Quantum Rise; terms not disclosed | Add-on | IT Services & MSP | Source |
Portfolio by sector
From the firm's portfolio page S5.
Current partnerships
- 50,000feet
- APCO Worldwide
- Quantum Rise
- Trailer Park Group
Past investments: DEPT (formerly 3Q Digital)
Greymont’s take
How Erie Street Growth Partners fits a seller
Erie Street suits the founder of a people-based services firm, such as an agency, consultancy or communications shop, who wants an engaged operating partner as well as capital. Its president says the team goes well beyond attending board meetings, so an owner should expect close involvement. When it invested in 50,000feet in 2023, the company stayed independent, but its CEO began reporting to Erie Street's president.
Because family offices can choose where their money goes, the firm says it can be patient and look past typical time frames. The same structure means there may be no fund standing ready to write the check. An owner should ask how much capital is already committed, how add-ons or follow-on rounds would be funded, and whether Erie Street would hold control, since its releases do not say.
Questions owners ask
Does Erie Street run a fund or invest deal by deal?
Its site describes a non-traditional structure backed by more than 45 family offices, and it says co-investments let those investors choose how and where to put their money. That points to raising capital deal by deal, though the site does not say so outright and describes no committed fund.
How large are Erie Street's investments?
It publishes no revenue, EBITDA or check size range. The only figure it has announced is a $15 million capital commitment to Quantum Rise in July 2024, so that one deal is the only public guide to size.
Does Erie Street invest in IT or AI services?
Yes. Quantum Rise, a Chicago AI consultancy and technology services firm, is a current partner, and Erie Street is its lead investor. In February 2026, Quantum Rise bought Dhauz, a data science and engineering firm based in Brazil.
Do founders and managers stay on after Erie Street invests?
Its releases point that way. Trailer Park Group kept its name and its CEO after the 2021 investment, and 50,000feet stayed independent with its CEO in place after the 2023 investment.
Sources
- S1Erie Street home page Accessed November 6, 2026
- S2Erie Street: Partners Accessed November 6, 2026
- S3Erie Street: Investors Accessed November 6, 2026
- S4Erie Street: Our Company Accessed November 6, 2026
- S5Erie Street: Current Partnerships Accessed November 6, 2026
- S6Erie Street: Contact Us Accessed November 6, 2026
- S7Erie Street: News Accessed November 6, 2026
- S8Quantum Rise Acquires Dhauz, Expands Global Team and Footprint (February 4, 2026) Accessed November 6, 2026
- S9Erie Street Growth Partners Commits $15 Million to Quantum Rise (July 8, 2024) Accessed November 6, 2026
- S1050,000feet Acquires Communications Firm Long Dash (October 21, 2024) Accessed November 6, 2026
- S1150,000feet Receives Investment from Erie Street Growth Partners (June 15, 2023) Accessed November 6, 2026
- S12Erie Street Capital Becomes Erie Street (January 8, 2020) Accessed November 6, 2026
- S13Trailer Park Group Welcomes Investment from Erie Street and Origami Capital Partners (August 11, 2021) Accessed November 6, 2026
- S14APCO Worldwide Launches Strategic Partnership with Erie Street (February 25, 2020) Accessed November 6, 2026
- S15Erie Street partner page: Quantum Rise Accessed November 6, 2026
- S16Erie Street partner page: DEPT (status fully realized) Accessed November 6, 2026
Compiled by Greymont Advisors from public sources, including the firm’s own website and press releases. Greymont is not affiliated with Erie Street Growth Partners. Figures are as reported on the dates shown and may have changed. Request a correction