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43North's Overview

Total employees50
HeadquartersBuffalo
Founded2014

43North is a startup accelerator program that invests $250,000 in five seed-stage companies annually, attracting entrepreneurs from around the globe to Buffalo, New York. Beyond funding, 43North provides mentorship, free incubator space in the Seneca One tower, and access to a network of potential customers, partners, and investors. The program is a key initiative of New York State's Buffalo Billion economic development plan, designed to foster innovation and job creation in Western New York. Companies that participate agree to operate in Buffalo for at least one year.

Where is 43North's Headquarters?

HQ Function

Serves as the central hub for program operations, startup incubation, mentorship sessions, community events, and administrative activities.

Notable Features:

State-of-the-art office and co-working spaces within Seneca One Tower, offering panoramic views of the city and Lake Erie. Access to modern amenities, event spaces, and a collaborative environment designed for tech startups.

Work Culture:

Dynamic, collaborative, and entrepreneurial. The culture is focused on supporting high-growth startups, fostering innovation, and connecting founders with resources and community. It's energetic, fast-paced, and mission-driven.

HQ Significance:

The location in Seneca One Tower symbolizes Buffalo's revitalization and its emergence as a tech hub. It places 43North and its portfolio companies at the center of the city's growing innovation ecosystem.

Values Reflected in HQ: Innovation, collaboration, ambition, community growth, and forward-thinking. The modern, high-tech environment reflects 43North's commitment to fostering cutting-edge businesses.

Location:

While 43North's operations are centered in Buffalo, NY, its reach is global. The accelerator actively recruits and attracts startup applications from countries worldwide. Portfolio companies often have international founders or target global markets, leveraging Buffalo as a strategic entry point into the North American market. 43North supports these companies in navigating US market entry and expansion.

Street Address:

1 Seneca St

City:

Buffalo

State/Province:

NY

Country:

USA

43North's Global Presence

Buying Intent Signals for 43North

Highperformr Signals uncover buying intent and give you clear insights to target the right accounts at the right time — helping your sales, marketing, and GTM teams close more deals, faster.

Notable news
Hiring actively
Corporate Finance
Corporate Finance
Corporate Finance
Corporate Finance
Corporate Finance
*Example signal, not calculated in real time

Executive Team of 43North

As of April 2025, 43North' leadership includes:

Colleen E. Heidinger - President
Kevin Siskar - Vice President, Portfolio & Selection
Maura Devlin - Vice President, Marketing & Communications
Katie Hestor - Vice President, Portfolio Operations & Finance

Investors of 43North

43North has been backed by several prominent investors over the years, including:

Empire State Development (New York State)
KeyBank
The Buffalo News
National Grid
BlueCross BlueShield of Western New York
Douglas Development (Seneca One)

Executive New Hires/Exits in the Last 12 Months

Hire0
Exits0

No major publicly announced executive hires or exits at the President/VP level have been identified for 43North in the last 12-18 months, indicating leadership stability.

Technology (Tech Stack) used by 43North

Discover the tools 43North uses. Highperformr reveals the technologies powering your target accounts — helping your sales, marketing, and GTM teams prioritize smarter and close faster.

43North Email Formats and Examples

43North commonly uses the email format of first initial followed by last name. Other formats might be in use but this is the most frequently observed pattern for their team.

firstinitiallast@43north.org (e.g., jdoe@43north.org)

Format

cheidinger@43north.org

Example

80%

Success rate

News and media

43north.orgJanuary 24, 2024

43North News: 43NORTH WELCOMES YEAR 10 COHORT TO BUFFALO

The five companies selected for 43North's Year 10 cohort have officially begun their program in Buffalo. These startups, chosen from a global pool of applicants, will each receive $250,000 in funding, intensive mentorship, and workspace at Seneca One Tower....more

The Buffalo NewsOctober 12, 2023

43North News: 43North names its Year 10 cohort winners

43North announced the five winning companies for its Year 10 cohort. Each company will receive a $250,000 investment and a spot in its Buffalo-based accelerator program. The winners are KAVERN, KoshQa, RepNot, StrokeLink, and Worthy....more

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