Quanterix Investor Presentation — November 2020

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November 5, 2020Forward -Looking Statements & Non -GAAP Financial Measures

This presentation contains forward -looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Words such

as "may," "will," "expect," "plan," "anticipate," "estimate," "intend" and similar expressions (as well as other words or expres sions referencing

future events, conditions or circumstances) are intended to identify forward -looking statements. Forward -looking statements are based on

Quanterix’ expectations and assumptions as of the date hereof. Each of these forward -looking statements involves risks and uncertainties.

Factors that may cause Quanterix’ actual results to differ from those expressed or implied in the forward- looking statements in this press

release are discussed in Quanterix’ filings with the U.S. Securities and Exchange Commission, including the "Risk Factors" sections

contained therein. Except as required by law, Quanterix assumes no obligation to update any forward -looking statements contained herein to

reflect any change in expectations, even as new information becomes available.

To supplement the Company’s financial statements presented on a GAAP basis, the Company has provided certain non- GAAP financial

measures. Management uses these non- GAAP measures to evaluate the Company’s operating performance in a manner that allows for

meaningful period -to-period comparison and analysis of trends in its business. Management believes that such measures are import ant in

comparing current results with prior period results and are useful to investors and financial analysts in assessing the Company’ s operating

performance. The non- GAAP financial information presented here should be considered in conjunction with, and not as a substitute for the