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CUSIP NO. 71721R 40 6 13G PAGE 18 OF 19 PAGES
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Exhibit 1
JOINT FILING AGREEMENT
In accordance with Rule 13d-1(k)(1) under the Securities Exchange Act of 1934,
as amended, the undersigned agree that only one statement containing the
information required by Schedule 13G need be filed by each of the undersigned
with respect to the ownership by each of the undersigned of shares of stock of
Phase Forward Incorporated. This Agreement may be executed in any number of
counterparts, each of which shall be deemed an original.
North Bridge Venture Partners V-A, L.P.
By: North Bridge Venture Management V, L.P.
Its General Partner
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General Partner
North Bridge Venture Partners V-B, L.P.
By: North Bridge Venture Management V, L.P.
Its General Partner
By: /s/ ▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇▇▇
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General Partner
North Bridge Venture Management V, L.P.
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General Partner
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CUSIP NO. 71721R 40 6 13G PAGE 19 OF 19 PAGES
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