Andrew Sheiner

Andrew Sheiner serves as CEO & Managing Partner at Altas Partners. Altas Partners operates in the investment management sector with approximately 110.0 employees. The company is headquartered in Toronto, Ontario. Altas Partners generates annual revenue of 7000000.0. To date, Altas Partners has raised 9000000000.0 in total funding, with the most recent round being Other.

Industry & Role Insights

• • MessageCEO tracks 1,660 executives in the investment management sector.
• • 3,797 executive contacts are available in Ontario.
• • Our database includes 201,464 c suite-level executives.

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Ernestas Kazbaras Chief Executive Officer, Partner at 1 Asset Management

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Francois Barbier Managing Partner & CEO at 21 Invest

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Giuseppe Prestia Chief Executive Officer at 21 Invest

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Cory Shull Chief Technology Officer at 26North

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Manuel Seisdedos CEO at 360 Sports, Inc.

Outreach Guidance — investment management Sector

Executives like Andrew Sheiner in the investment management sector receive targeted outreach from sales teams, recruiters, and investors. To stand out, personalize your message with industry-specific context and a clear, specific value proposition relevant to their role at Altas Partners.

Andrew Sheiner's Position in the MessageCEO Database

• •Andrew Sheiner is 1 of 1 verified executive contact we track at Altas Partners.
• •1,639 verified executive contacts in investment management are in the MessageCEO database.
• •3,711 verified executive contacts in Ontario are in the database.
• •34 verified contacts work at investment management companies in the 110.0 employee range (same size as Altas Partners).

Executive contact data compiled from public business filings, LinkedIn public profiles, company press materials, and verified outbound email testing. We do not publish personal addresses or sensitive identifiers. Methodology & sources · Removal requests handled at /remove-info · Updated November 2026.

How do I reach Andrew Sheiner directly?

Andrew Sheiner's verified email address is available to MessageCEO Pro subscribers. They currently serve as CEO & Managing Partner at Altas Partners. Access direct contact info to skip gatekeepers and reach the decision maker.

What company does Andrew Sheiner work for?

Andrew Sheiner is CEO & Managing Partner at Altas Partners, a company in the investment management sector with 110.0 employees. The company is based in Toronto, Ontario.

Can I pitch or sell to Andrew Sheiner?

As CEO & Managing Partner at Altas Partners, Andrew Sheiner is a key decision-maker in the investment management sector. MessageCEO Pro gives you verified email to reach Andrew Sheiner directly — ideal for B2B sales, partnerships, and executive recruiting.

What industry is Andrew Sheiner in?

Andrew Sheiner works in the investment management industry as CEO & Managing Partner at Altas Partners. MessageCEO provides verified contact information for executives across all major industries.

Is Andrew Sheiner's contact information verified?

Yes. MessageCEO verifies executive contact information through multiple data sources and regular validation checks. Andrew Sheiner's profile is kept up-to-date with the latest available information.

Last updated: November 1, 2026