Contour Ridge Makes Strategic Growth Investment in WhiteStar Corporation

Sterling Infrastructure Acquires Stone Ridge Contracting to Expand E-Infrastructure in the Pacific Northwest

June 11, 2026

Industrial Services

Sterling Infrastructure, Inc. has closed on its acquisition of Stone Ridge Contracting, LLC, a Pocatello, Idaho-based site development contractor. The deal adds heavy civil, concrete, and construction management capabilities to Sterling’s E-Infrastructure Solutions segment and expands its footprint across the Pacific Northwest and Texas.

ESG Acquires Whitestar to Expand Land Mapping and GIS Data Capabilities

March 13, 2024

Energy

ESG, a global energy SaaS provider backed by Accel-KKR, has acquired Whitestar, a provider of high-fidelity infrastructure planning data and land-mapping software. The acquisition adds project evaluation and land mapping capabilities to ESG’s Pandell asset infrastructure data management suite to better serve renewables, utilities, oil & gas, telco and other infrastructure customers.

WhiteStar (Clearlake) Acquires Carlson Capital's Cathedral Lake CLOs

April 1, 2022

Financial Services

WhiteStar Asset Management, the CLO and structured products arm of Clearlake Capital, has acquired the management rights to five reinvesting Cathedral Lake CLOs from Carlson CLO Advisers, a subsidiary of Carlson Capital. The acquisition—effective March 31, 2022—adds more than $2.0 billion of CLO assets and brings WhiteStar's CLO AUM to roughly $12 billion, strengthening its credit and CLO platform.

Contour Ridge Invests in TrendyMinds

March 2, 2022

Marketing & Advertising

San Antonio-based private equity firm Contour Ridge made an eight-figure growth investment in Indianapolis-based digital marketing agency TrendyMinds. The capital will be used to accelerate hiring (targeting 600+ new roles over 3–5 years), expand capabilities, open regional offices, and pursue add-on acquisitions.

Clearlake Capital Acquires Majority Stake in WhiteStar Asset Management

June 24, 2020

Financial Services

Clearlake Capital Group has acquired a majority stake in WhiteStar Asset Management from Pine Brook Capital Partners, partnering with WhiteStar's management team led by CEO Gibran Mahmud. The deal expands Clearlake's credit platform—bringing combined assets under management to approximately $24 billion—and positions WhiteStar to accelerate growth in CLOs and credit strategies.

Bluestone Investment Partners Invests in Continental Mapping Consultants

March 10, 2020

Aerospace & Defense

Bluestone Investment Partners completed an investment in Continental Mapping Consultants, a Sun Prairie, Wisconsin-based geospatial data analytics and mapping solutions provider serving defense, intelligence, federal/state government and commercial customers. The company employs approximately 170 people and Bluestone intends to support growth through organic expansion and acquisitions and to expand the company's capabilities.