Lattice

HR TechFounded 2015

Market Data Current As Of: September 12, 2026

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Lattice

HR TechFounded 2015

Reviewed by Swet Parvadiya

Last reviewed: September 12, 2026

Market Data Current As Of: September 12, 2026

Founders

Who Founded Lattice?

Jack Altman, Eric Koslow · Founded 2015 · San Francisco, California, United States

Quick Answer

Lattice was founded by Jack Altman, Eric Koslow in 2015 in San Francisco, California, United States.

Founding Story

In 2015, Jack Altman had recently left his role as Vice President of Business Development at Teespring, while Eric Koslow was an early engineering lead at Teespring. Both founders observed that as high-growth startups expanded from 20 to 200 employees, company culture and alignment deteriorated rapidly: employees felt disconnected from company goals, managers lacked tools to conduct meaningful 1-on-1 check-ins, and performance feedback arrived months too late. Backed by Y Combinator and angel funding from tech luminaries, Altman and Koslow incorporated Lattice. They initially built an Objectives and Key Results (OKR) goal-tracking tool. However, as they listened to hundreds of human resources leaders, they discovered that goal tracking was only one symptom of a much larger problem: companies had no modern software to manage the entire lifecycle of employee performance and growth. Pivoting in 2017 to launch continuous performance reviews and 1-on-1 meeting workflows, Lattice struck a chord with high-growth tech companies. By treating HR software with consumer-grade design elegance, Lattice grew rapidly from Silicon Valley startups to Fortune 500 enterprises.

Jack Altman

Role at Lattice

Jack Altman is an American entrepreneur, investor, and business author who co-founded Lattice in 2015 and served as its CEO until 2024, currently serving as Executive Chairman. Born in Chicago, Illinois, Altman graduated from Princeton University with a degree in economics. Prior to founding Lattice, he served as Vice President of Business Development at Teespring during its hypergrowth phase and co-founded Hydrazine Capital. In 2015, Altman co-founded Lattice, leading the company through Y Combinator and scaling it into a $3.0 billion market leader with over 5,000 corporate clients. The author of 'People Strategy: How to Invest in People and Make Culture Your Competitive Advantage', Altman is a prominent thought leader in organizational psychology and an active Silicon Valley angel investor.

Eric Koslow

Role at Lattice

Eric Koslow is an American software engineer, systems architect, and technology entrepreneur who co-founded Lattice in 2015. Koslow earned a degree in computer science from Carnegie Mellon University and served as an early engineering lead at Teespring alongside Jack Altman. At Lattice, Koslow architected the foundational software infrastructure, designing the flexible, graph-based data schema that allowed Lattice to seamlessly interconnect performance evaluations, OKR goals, 1-on-1 meeting agendas, and compensation models. As CTO, Koslow led engineering through the platform's hypergrowth before transitioning to advisory roles.

Who Founded Lattice? FAQ

Who founded Lattice and in what year was it established?

Lattice was founded in 2015 by Jack Altman, Eric Koslow in San Francisco, California, United States.

What was the original founding vision for Lattice?

The founders established Lattice with the objective of solving core inefficiencies in HR Tech, People Management, Performance Management, Employee Engagement, Compensation & Human Resources Information Systems (HRIS), laying the foundation for its current global scale.