Founded in 1986, TSS has grown to become the largest professional advisory firm headquartered in New Hampshire. With over 90 employees dedicated to the broad range of clients and mix of services seldom seen in a local firm, we have experience and expertise to assist our clients in meeting their goals, whether individuals or business entities, regardless of their size or industry.
At TSS, we recognize that professionals today need to be business consultants, advisors, planners and strategists. We need to be knowledgeable not only in accounting and tax law, but also in business analysis and valuation, estate planning, employee benefit administration and much more.
Over the last few years, we have acknowledged and embraced the fact that the accounting profession and industry is evolving. With this, we are taking our commitment to excellence to a new level by partnering with Ascend. This will accelerate our strategic growth model by providing access to new resources and additional partnership opportunities.
At Ascend, we understand the struggles that accounting & finance professionals face in traditional public accounting firms - from rigid hierarchies, overwhelming workloads, and the elusive work-life balance. It’s time for a transformative change. We believe your ambition should not be constrained by outdated practices or opaque career paths. Here, you're not just a number; you’re a valued member of a community that supports & celebrates your professional & personal fulfillment. Our mission is to transform the public accounting experience into one where work-life harmony is a reality, and where your career advancement is supported by a nurturing network and comprehensive resources.
Ascend empowers entrepreneurial CPAs to reach their goals with an innovative growth model that brings our partner firms into the new age. Backed by private equity from people-focused Alpine Investors, Ascend is building a modern platform for regional accounting firms that enables them to stay independent while having access to resources of a large firm. These resources include growth capital, robust talent acquisition, best-of-breed technology, a catalytic leadership system, shared back-office services, and modernized equity incentives.
Founded in January 2023, Ascend has already attained revenues sufficient to qualify as a Top 30 U.S. accounting firm. Explore Ascend, where your career soars without sacrificing your quality of life.
The Administrative Assistant provides essential administrative and operational support to the accounting firm. This position helps maintain an organized, professional, and efficient office while supporting accountants, managers, partners, and clients. The ideal candidate is detail-oriented, dependable, service-focused, and comfortable handling confidential financial and client information.
This is a part-time position with a target of 25 hours per week, averaged across the year. We are a deadline-driven industry with a high volume of work between January and April; ideally this candidate could exceed 25 hours per week at times during this season, then scale back during the summer months to balance out to the 25-hour average.
This position is performed in a professional office environment. During tax season and other peak periods, the Administrative Assistant may be expected to work additional hours or adjust priorities to meet firm deadlines.

Founded in 1986, TSS Advisors (formerly Tyler, Simms & St. Sauveur) has grown to become the largest professional advisory firm headquartered in the Upper Connecticut River Valley of New Hampshire and Vermont. With over 50 dedicated employees offering a diverse range of services rarely found in local firms, we at TSS Advisors possess the experience and expertise to support clients of all sizes and industries—whether individuals or business entities—in achieving their goals effectively. Our mission is to make a difference in our clients’ lives, and forge legacies for generations to come.
At TSS, we understand that diversity is crucial, not just in industries we serve but within our own firm. Today’s professional advisory services demand more than the traditional roles of preparing financial statements and tax returns; our professionals are consultants, advisors, planners, and strategists. We are well-versed not only in accounting and tax law but in business analysis, consulting, estate planning, business valuation, and a wide array of additional disciplines essential for comprehensive client support, ensuring comprehensive and tailored guidance. As an independent member of CPAmerica, we have access to resources from the Crowe Global network that consists of more than 200 independent accounting and advisory services firms.
Over the last few years, we have recognized and embraced the evolving landscape of the accounting profession and industry. In our commitment to excellence, we are excited to announce our partnership with Ascend! This collaboration will elevate our strategic growth model by granting us access to limitless resources, leading technology, and expanded partnership opportunities, enabling us to better position our employees, serve our clients and advance our firm’s capabilities.