SDC Capital Partners Acquires Majority Stake in IQ Fiber

IQ Fiber Acquires ThinkBig Networks

January 3, 2025

Telecommunications

IQ Fiber, a Jacksonville-based 100% fiber-optic internet provider, has completed the acquisition of Maryland-based ThinkBig Networks, expanding IQ Fiber's footprint into Charles, Kent, Queen Anne's and Harford counties. The deal is supported by additional equity funding from SDC Capital Partners and will see ThinkBig leadership integrated into IQ Fiber as the business is rebranded in 2025 to accelerate network expansion in the Chesapeake region.

SDC Capital Partners Makes Minority Growth Investment in Bandwidth Infrastructure Group

October 16, 2020

Telecommunications

Funds managed by SDC Capital Partners acquired a minority interest in Bandwidth Infrastructure Group, providing growth capital to support expansion of the company’s dark fiber network across Northern California and Greater Atlanta. Columbia Capital will remain the majority shareholder following the transaction. Bandwidth IG, founded in 2019 and headquartered in San Jose, California, supplies underground dark fiber connectivity to data centers, hyperscalers and enterprises.

SDC Capital Partners Majority Recapitalizes Summit Infrastructure Group (SummitIG)

January 11, 2019

Telecommunications

Funds managed by SDC Capital Partners have acquired a majority interest in Summit Infrastructure Group (SummitIG) in a majority recapitalization. Columbia Capital retains a material ownership stake; the transaction provides SummitIG with additional capital and operational support to accelerate expansion of its dark fiber network in Virginia and into new markets.

SDC Capital Partners Acquires Majority Stake in Fatbeam

January 28, 2020

Telecommunications

Funds managed by SDC Capital Partners have acquired a majority interest in Fatbeam Holdings, LLC, providing the fiber network operator with capital to accelerate densification and strategic expansion across the western United States. Fatbeam’s existing majority shareholders will retain a material ownership stake and SDC will partner with the management team to support growth across education, enterprise, healthcare, government and carrier end markets.

SDC Capital Partners Acquires Majority Interest in Cityside Networks

February 23, 2023

Telecommunications

Funds managed by SDC Capital Partners have acquired a majority interest in Cityside Networks, a fiber-to-the-premise (FTTP) provider headquartered in Orange County (Irvine), California. The investment provides growth capital to accelerate Cityside's fiber network buildout and expand its Cityside Fiber residential, business and wholesale offerings across Southern California.

Thoma Bravo Makes Strategic Minority Investment in SDC Capital Partners

October 2, 2025

Infrastructure

Thoma Bravo has made a strategic minority investment in SDC Capital Partners, a global digital infrastructure investment firm focused on data centers, fiber, wireless and cloud-services infrastructure. The investment, funded from Thoma Bravo's balance sheet, is intended to support SDC's platform expansion as demand for AI, cloud computing and advanced technologies drives increased need for digital infrastructure.