Florham Park-based Wiss, a full-service accounting and business advisory firm, announced today it is entering 2026 with strong business momentum, fueled by a strategic decision to operate like a venture capital (VC) startup and embed Artificial Intelligence (AI) and data analytics into its core services.
The firm, which has been in business for over 50 years, is actively positioning itself as the “last mile provider” of innovation, modernizing outdated accounting departments and delivering co-sourced and outsourced financial solutions to clients.
“We are committed to breaking the traditional accounting model that has been outdated for over two decades,” Paul Peterson, CEO and managing partner at Wiss said. “We are investing in AI and innovative solutions to remove the darkness from the world the accountants have lived in for years… Wiss is redefining the accounting and advisory industry by modernizing finance functions and leveraging advanced tools that fuel our market momentum.”
In 2025, Wiss implemented an AI application layer across its services, building custom AI agents to match workflow needs. This commitment to technology is formalized through Wiss Labs, a new initiative that partners with and invests in founders building the future of accounting.
Key technology partnerships that drove momentum this year include:
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Rillet: Partnering with the AI-native ERP platform to offer clients a highly innovative solution for accounting and reporting backbones.
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Tabs: Partnering with the AI-native revenue platform to automate billing, collections, revenue recognition, and reporting, turning data accuracy into a growth advantage.
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Basis: Wiss was the first accounting firm in the country to partner with Basis, an AI platform that has significantly increased the effectiveness of its personnel and achieved faster monthly close processes with increased accuracy.
By blending this technology with a human-centric approach, Wiss offers clients a full accounting operation without the internal overhead, allowing companies to focus on their core businesses.
