Altamont Capital Partners Makes Strategic Investment in Horizon Investments

Altamont Capital Partners Invests in Cornerstone Advisors

October 2, 2020

Professional Services

Altamont Capital Partners made an equity investment in Cornerstone Advisors, a Scottsdale-based provider of advisory services to mid-size banks and credit unions. The founders Scott Sommer and Steve Williams remain as CEO and President, and the capital will support Cornerstone’s investments in employees, data-powered offerings and internal infrastructure to accelerate growth.

New Mountain Capital Acquires Horizon Group Holdings from Sun Capital Affiliate

November 13, 2019

HVAC & Mechanical

New Mountain Capital has acquired Horizon Group Holdings, LLC (Horizon Services) from an affiliate of Sun Capital Partners. Horizon, a Newark, Delaware-based residential provider of heating, air conditioning, plumbing, and electrical services with a ~1,400-employee team, will remain managed by founder Dave Geiger and management, and will use New Mountain's capital and resources to accelerate organic and acquisition-led growth.

Horizon Capital Provides >£40M Growth Investment in Ridge and Partners

April 27, 2023

Engineering Services

London-based private equity firm Horizon Capital has invested more than £40 million in Ridge and Partners, the UK built-environment consultancy, providing the firm with its first institutional capital to support growth. The funding will be used to expand talent, broaden capabilities across architecture, engineering, planning and sustainability, and to pursue strategic add-on acquisitions as part of Ridge's ‘Quality, Innovation and Growth’ strategy.

Horizon Investments Acquires Majority of Centre Asset Management

April 22, 2025

Wealth Management

Horizon Investments has closed its previously announced acquisition of a majority of the assets of Centre Asset Management, a New York–based active equity manager founded in 2006. The deal strengthens Horizon’s in-house investment capabilities for the financial advisor market and establishes an in-market presence in New York; terms were not disclosed.

Altamont Capital Partners Acquires Majority Stake in Fleming Holdings

May 16, 2022

Financial Services

Altamont Capital Partners has acquired a majority stake in Fleming Holdings and committed $150 million of growth capital to support Fleming's expansion as a capital solutions provider for property & casualty (P&C) insurers. The partnership will accelerate Fleming's development of innovative run-off and legacy reserve transaction solutions and help scale its insurance-linked investment and liability management offerings.

Rockhill Capital & Investments Merges With Horizon Capital Partners

November 21, 2022

Real Estate

Frisco-based Rockhill Capital & Investments has merged with McKinney-based Horizon Capital Partners to combine teams and expand real estate investing and development capabilities across North Texas. The combined firm will operate under the Rockhill Capital & Investments name and plans to pursue a broader slate of residential, mixed-use and hospitality development projects in the region.