Rainer Partners

Rainier Partners is a private equity firm founded in 2020 and based in Seattle, Washington, focusing on investments in lower middle-market businesses. The firm specializes in a diverse array of sectors, including business services, financial services, industrial services, consumer services, and various technology-enabled services. Rainier Partners aims to foster strong partnerships with business owners and management teams, promoting open and collaborative communication to facilitate accelerated profit growth. With a team experienced in multiple verticals, the firm is well-equipped to support the development and expansion of its portfolio companies.

Jon Altman

Co-Founder and Managing Partner

Manu Amin

Associate

Henry Anderson

Vice President

Henry Anderson

Vice President

Lucas Bench

Vice President

Caroline Forbess

Analyst

Jonathan Lo

Vice President

Shiven Mohindra

Analyst

Benjamin Painter

CFO

Udai Singh

Analyst

Nick VanOverberghe

Associate

Beatrice Woodruff

Senior Associate

5 past transactions

Pet Food Express

Private Equity Round in 2022
Pet Food Express supplies organic food for pets.

Wilmar

Private Equity Round in 2022
Wilmar is a supplier, distributor, and category manager of specialty tools, hand tools, and equipment.

Calpine Containers

Acquisition in 2021
Calpine Containers is a distributor of packaging solutions, primarily serving the agriculture industry. The company offers a range of products including bags, boxes, pallets, and strapping, designed to protect fresh produce from the field to market. With a network of 11 locations across key agricultural regions on the West Coast, Calpine effectively serves over 500 growers and marketers of fresh produce. In addition to its packaging products, Calpine provides comprehensive services such as scheduling, inventory control, and container assembly, allowing clients to streamline their purchasing and delivery processes at competitive prices.

NDREAM

Venture Round in 2018
Developer of online games intended to bring new joy to everyone in the world. The company specializes in developing massive multi-player online games with 3D animated characters, strategy simulations, and life-like visuals, enabling gamers with an immersive gaming experience.
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