Insight Partners

Office address: 1114 Avenue of the Americas, 36th Floor, New York, NY 10036
Website: insightpartners.com
Year established: 1995
Company type: financial services Employees: 600+
Expertise: software, internet, ScaleUps, growth equity, M&A, cybersecurity, operational strategy, venture capital, SaaS, sales, marketing, talent management, product development, pricing, global expansion
Parent company: N/A
Key people: Jeff Horing (co-founder), Ian Sandler (COO), Mark Lessing (CFO), Andrew Prodromos (chief compliance officer), John Weinstein (general counsel), Jon Rosenbaum and Deven Parekh (managing directors)
Financing status: privately held company

Insight Partners is a New York-based investment firm focused on software and internet businesses. The company manages over $90 billion and has backed 875 companies as of June 2025. Its Onsite engine provides operational support to help leaders scale their businesses efficiently.

History of Insight Partners

Insight Partners was established in New York City in 1995 by Jeff Horing and Jerry Murdock. It operated from a small office because the founders wanted to transform industries through software.

According to the founders, the software sector was not yet dominant, but they saw its potential to mold economies. Insight committed to helping software companies scale and thrive in a changing market.

Strategic focus

The firm continues to use a straightforward approach to help companies capture value and generate success. It relies on three core pillars known as:

• scale
• focus
• experience

The team at Insight Partners uses knowledge from 30 years of investing to recognize patterns in software. This expertise helps executives build successful products and execute their plans effectively.

Operational support

The firm launched Insight Onsite, a strategic resource, to provide a dedicated platform of software operators. This engine includes over 130 experts who offer guidance to scale businesses faster. They help executive teams build core capabilities ranging from product development to talent acquisition.

Recent investments

The company continues to back major industry challengers like the custodian firm Altruist. Insight Partners led a $112 million funding round in 2023 to fuel rapid growth. Managing director Jon Rosenbaum notes that Altruist solves technical problems with an intuitive experience. This investment highlights how Insight supports companies that aim to modernize digital infrastructure.

Insight Partners products and services

Insight Partners combines flexible capital with a dedicated operational engine to scale software businesses:

• venture capital: investment funding for early and late-stage growth
• Insight Onsite: operational guidance from experienced software experts
• resource hub: access to playbooks and benchmark reports
• talent network: connects companies with vetted industry leaders
• strategic connections: introductions to buyers and enterprise executives
• M&A counsel: advice for mergers and geographic expansion

The firm provides 24/7 advisory support for executive teams. It helps founders recognize industry patterns to capture opportunities.

Scaling at every stage

Insight Partners adapts its resources to match the specific needs of each company. It supports businesses from their initial product launch to their public debut:

• early stage: establishes product-market fit and foundations
• growth stage: fills operational gaps to accelerate scale
• late stage: focuses on M&A and global expansion

This approach makes sure that founders have capital for every step of the journey. The firm uses data and expertise to help leaders win.

Culture and corporate values

Insight Partners states that its team consists of independent thinkers seeking industry-changing technology. The firm adds that its culture relies on team members who embody its core values, which are:

• doing the right thing
• hunger to win
• thinking outside the box
• scrappiness to do more with less
• commitment to continuous reinvention

Insight Partners notes that these principles define its identity and guide its achievements. It says these traits shape its efforts to generate value for leadership teams.

Insight Partners’ DEI approach

The firm extends the mentioned principles to transform investing for underserved communities. It applies its vision through three pillars that target:

• internal impact
• portfolio changes
• investment expansion

The company uses this strategy to create access and opportunity throughout the technology sector.

Corporate responsibility

Insight Partners also views proactive ESG management as essential to its fiduciary duty and support for ScaleUps. The firm says it helps companies build foundational programs in areas like cybersecurity and responsible tech to mitigate risk.

About Co-founder and key people

Jeff Horing co-founded Insight Partners in 1995 and serves as its managing director. He helped the firm raise billions in capital commitments and invested in 250 companies. Horing previously worked at Warburg Pincus and Goldman Sachs after graduating from MIT and the University of Pennsylvania.

The following managing directors lead Insight Partners’ investment strategy and operational growth:

• Deven Parekh works as managing director, investing in high-growth software and internet businesses globally
• Ian Sandler is managing director and COO, managing the company’s daily operations and growth
• Mark Lessing serves as managing director and CFO, guiding the firm’s financial planning and strategy
• Andrew Prodromos works as managing director and chief compliance officer, overseeing legal and regulatory matters
• John Weinstein is managing director and general counsel, handling legal affairs and transaction structuring
• Jon Rosenbaum acts as managing director, targeting investments in vertical and horizontal application software

Insight Partners’ leaders focus on driving growth equity in the software and technology sectors. This team leverages deep operational expertise to scale companies globally.

The future at Insight Partners

Insight joined a coalition of 35 venture firms in 2023 to pledge responsible strategies for AI startups. The group aims to ensure that funded companies develop technology with strong safety guardrails. Insight Partners stated that building trust is crucial when investing in AI infrastructure. This pledge aligns with its goal to foster trust in emerging technologies.

Insight Partners also led a new funding round for the estate planning software company Vanilla in 2024. This capital helps the latter firm expand its platform and develop AI-powered tools for financial advisors. Managing Director Jon Rosenbaum noted that the software integrates deeply into advisory stacks to handle complex planning. Insight secured a foothold in the expanding estate tech sector through this strategic backing.

The latest Insight Partners news