Mesoscale eddies in the northeast North Atlantic were investigated using the SeaSoar towed CTD and ADCP data from the 1991 Vivaldi cruise. These data cover an area of 1700 km × 1500 km between 39° and 54°N and between 35° and 10°W. To maximize statistical significance, but retain the possibility of determining north-south gradients, statistics of eddy quantities were calculated separately for the northern and southern halves of the cruise area. The mean flow in the south is essentially zero: in the north the flow is dominated by the North Atlantic Current (NAC) with a mean speed of 6.5 cm s-1. The eddy kinetic energy in the south, 205 cm2 s-2, is, however, only slightly less than in the north, 272 cm2 s-2. The eddy momentum transports, or Reynolds stresses, u′v′, show a poleward decrease, corresponding to an acceleration of the mean eastward flow associated with the NAC of 0.03 cm s-1 day-1. The eddy heat transports, u′T′, are not significantly different from zero in the south but show a clear poleward transport in the north of 5.5 K cm s-1, or 0.1 PW for the 365-m layer 1500 km wide. The depth-averaged eddy potential vorticity fluxes, u′q′, show a convergence toward the source region of the low-potential-vorticity eastern North Atlantic Central Water west of Biscay. The residual or rectified eddy transport velocity implied by the eddy potential vorticity flux. u* = -u′q′/q, is 0.7 cm s-1 toward the southwest in the south, while in the north it is 0.9 cm s-1 toward the northwest crossing the property isolines. The directions correspond to a divergence from the formation region of the eastern North Atlantic Central Water. An assessment of the overall volume transport of the region suggests that the westward eddy volume transport (∼4 Sv; Sv ≡ 106 m3 s-1) is almost balanced by an eastward geostrophic flow (∼3 Sv) with the remainder being supplied by a smaller contribution leaving the northward-flowing eastern boundary current (∼1 Sv)