We bring together the strengths of DSA Corporate Services Inc. (DSA), a leader in delivering corporate secretarial services, and Marrelli Support Services Inc. (MSSI), a highly respected leader in providing financial accounting and reporting services to companies active in Canadian capital markets, offer a complete C-suite experience for our clientele.

We are proud to work with publicly listed and private companies across all sectors of the economy. Our client base consists of reporting issuers listed on the Toronto Stock Exchange (TSX), the TSX Venture Exchange (TSX-V), and the Canadian Securities Exchange (CSE), including many companies inter-listed on U.S. stock exchanges and other international markets. We also assist non-listed reporting issuers.

In addition to reporting issuers, The Marrelli Group of Companies often works with private companies aspiring to go public by way of prospectus filings or reverse take-overs with capital pool companies or listed shells, lending support and assistance under the guidance of their legal counsel. We will also provide, on request to appropriate end users, our internal control report called “Report on Suitability of Design and Operating Effectiveness of Controls in Accordance with Canadian Standards for Assurance Engagements 3416″ and our “Canadian Anti-Money Laundering (AML) Compliance Review” used in part to satisfy the requirements of section 71(1)(e) of the Proceeds of Crime (Money Laundering) and Terrorist Financing Regulations (PCMLTFR). The PCMLTFR requires financial service providers and other businesses susceptible to being used for money laundering or terrorist financing to conduct a review every two years of the effectiveness of their program for compliance with the Proceeds of Crime (Money Laundering) and Terrorist Financing Act (PCMLTFA).



We do the right thing. We are transparent, honest, ethical and fair in all our activities. We keep our word, deliver on our promises and embrace our challenges.


We treat others as they wish to be treated. We embrace each individual’s unique talents and honour diverse life and work styles. We operate in a spirit of cooperation and value human dignity.


We are experts. We align the needs of our clients, our company and our team members. We are dedicated to the ongoing development of our specialized skills, knowledge and competence in service to our clients.


We win together. We foster trust, collaboration and mutual support to focus on consistent, superior performance. We set positive examples, invest in developing others and challenge each other to new heights.

Innovative Spirit

We anticipate change and shape it to fit our client’s purposes. We are open to ideas that challenge the conventional views and create forward-thinking solutions and process improvement tools.



Financial &Accounting Services

Full-service back office accounting and administration for your company.

The MSSI Outsourced CFO Solution

Appointment of one of our senior team members on a select basis to act as your CFO.

DSA Corporate Services

Outsourced corporate secretarial services for small to midsized reporting issuers.

DSA Filing Services

Electronic regulatory filings and customized annual disclosure filing calendar.

Office Rentals

Shared office space in heart of downtown Toronto.

Marrelli EscrowServices

Providing a tailored comprehensive escrow offering to meet our client’s requirements.

At MSSI & DSA, we are the leaders in delivering corporate secretarial, financial reporting, and part-time CFO services to Canadian reporting issuers.

For more than 75 years, through Canadian predecessor companies and partnerships, the trusted brands in The Marrelli Group of Companies have been providing reporting issuers and private companies with valuable support services needed to navigate the capital markets and the business world.