diff --git a/build.xml b/build.xml
index e5327caf..18cdaef8 100644
--- a/build.xml
+++ b/build.xml
@@ -2328,6 +2328,7 @@
         <fixcrlf file="${output.dir}/${mdaggr.stats}" eol="lf" encoding="UTF-8"/>
     </target>
 
+
     <!--
         This variant generates a much simpler file, intended for use when building the
         monthly chart pack.
@@ -2525,6 +2526,35 @@
         <echo>Check complete.</echo>
     </target>
 
+    <!--
+        compare.members
+
+        Runs the compare-members.sh script, comparing Salesforce and UKf member data
+    -->
+    <target name="compare.members" depends="extract.members.to.csv">
+        <echo>Running compare.members</echo>
+        <exec executable="bash" failonerror="true">
+            <arg value="${utilities.dir}/compare-members.sh"/>
+            <arg value="${temp.dir}/ukf-members.csv"/>
+        </exec>
+        <delete file="${temp.dir}/ukf-members.csv" quiet="true" verbose="false"/>
+    </target>
+
+    <!--
+        extract.members.to.csv
+
+        Extract the ID and Name elements in UKf members to a CSV file for compare-members.sh to use
+    -->
+    <target name="extract.members.to.csv">
+        <echo>Running extract.members.to.csv</echo>
+        <exec executable="xsltproc" failonerror="true">
+            <arg value="--output"/>
+            <arg value="${temp.dir}/ukf-members.csv"/>
+            <arg value="${utilities.dir}/members-to-csv.xsl"/>
+            <arg value="../ukf-data/members/members.xml"/>
+        </exec>
+    </target>
+    
     <!--
         echoproperties
 
diff --git a/utilities/compare-members.sh b/utilities/compare-members.sh
new file mode 100755
index 00000000..2cc4bca4
--- /dev/null
+++ b/utilities/compare-members.sh
@@ -0,0 +1,201 @@
+#!/bin/bash
+#
+# Compares members.xml and sf-contacts.csv and flags differences
+#
+# Needs some work on "The" and "&" probably flagging too many mismatches
+#
+# This takes sometime to process >1hr.
+#
+# Author: Jon Agland, jon.agland@jisc.ac.uk
+# Date: 25/02/2019
+# Version: 0.3
+# Usage:
+# * There is an ant build called 'compare.members' please use this to call the script.
+# * If calling directly, you should provide a parameter for the $1 for the input file
+#   which is the output of members-to-csv.xsl
+
+if [ -z "$1" ]; then
+     echo "ERROR: No file name supplied.  Did you mean to call the script directly? Try 'ant compare.members' "
+     exit 1
+fi
+
+MEMBERSXML="../ukf-data/members/members.xml"
+SFCONTACTS="../ukf-data/contacts/sf-contacts.csv"
+
+# temporary files
+TMPFILE=`mktemp`
+MEMBERSCSV=`mktemp`
+SFMEMBERSCSV=`mktemp`
+
+# output
+NOTMATCH=`mktemp`
+NOTINMEMBERS=`mktemp`
+MISMATCH=`mktemp`
+NOTINSF=`mktemp`
+
+# set these variables as lowercase, for doing comparisons
+typeset -l jnamelower
+typeset -l ukfnamelower
+# we call our xsl script convert some of the contents of members.xml to a csv file.
+sed -e 's/"ukforg/"/g' $1 | sort -u > $MEMBERSCSV
+
+# in the sf-contacts.csv (sfmembers) we read only the lines with an email address
+while IFS="," read -r email jod role jname
+do
+    if [[ $email =~ .*@.* ]];
+    then
+        echo "$jod,$jname" >> $TMPFILE
+fi
+done < $SFCONTACTS
+# sort the file for unique organisations, as there will be duplicate lines based on contacts
+sort -u $TMPFILE > $SFMEMBERSCSV
+
+# read each of our csv files into an array
+readarray sfmembers < $SFMEMBERSCSV
+readarray ukfmembers < $MEMBERSCSV
+
+# reset our counter
+count=0
+
+# we do a cross reference between $MISMATCH and $NOTINSF, so that we don't flag twice
+mismatchcrossref=()
+# find out the length of our two arrays
+LENGTHSF=${#sfmembers[@]}
+LENGTHUKF=${#ukfmembers[@]}
+
+# This it the first/main loop, it checks through sfmembers and compares against ukfmembers.
+# Output into the files $NOTMATCH, $NOINMEMBERS and $MISMATCH, and also populates the array mismatchcrossref()
+
+# Based on the length of the sfmembers array
+for (( j=0; j<${LENGTHSF}; j++ )); do
+    # reset our match state
+    match=0
+    # the array items are stored with name and number, so we split
+    jod=$(echo ${sfmembers[$j]} | cut -f1 -d, )
+    jname=$(echo ${sfmembers[$j]} | cut -f2- -d, )
+# Using the length of the ukfmembers array
+    for (( k=0; k<${LENGTHUKF}; k++ )); do
+        # the array items are stored with name and number, so we split
+        ukforg=$(echo ${ukfmembers[$k]} | cut -f1 -d, )
+        ukfname=$(echo ${ukfmembers[$k]} | cut -f2- -d, )
+        # remove punctunation from names
+        jnamelower=$(echo $jname | tr -d [:punct:])
+        ukfnamelower=$(echo $ukfname | tr -d [:punct:])
+        # compare the id numbers
+        if [ "$jod" == "$ukforg" ]; then
+            # compare the names
+            if [ "$jnamelower" != "$ukfnamelower" ]; then
+            # lets see if any of the names have ltd or limited, as we treat these the same
+                if [[ $jnamelower =~ .*ltd$ ]] | [[ $jnamelower =~ .*limited$ ]] || [[ $ukfnamelower =~ .*ltd$ ]] || [[ $ukfnamelower =~ .*limited$ ]]; then
+                    # try to strip off limited or ltd from the names to compare
+                    jnameltd=${jnamelower%limited}
+                    ukfnameltd=${ukfnamelower%ltd}
+                    jnamelimited=${jnamelower%ltd}
+                    ukfnamelimited=${ukfnamelower%limited}
+                    # compare the names
+                    if [[ "$jnameltd" == "$ukfnameltd" ]] || [[ "$jnamelimited" == "$ukfnamelimited" ]] ; then
+                        # if we get match, we set our state and break from the loop
+                        match=1
+                        break
+                    else
+                        # if we don't get a match then we log it in $NOTMATCH
+                        echo $jod and $ukforg match, but $jname and $ukfname do not. >>$NOTMATCH
+                        # this is still a match
+                        match=1
+                        break
+                    fi
+                fi
+            else
+                # names and numbers all match, so match and break
+                match=1
+                break
+            fi
+        fi
+        # compare the names, see if we have mismatched ids, and if so log it in $mismatch
+        # add the ukforg number to mismatchcrossref array for later.
+         if [ "$jnamelower" == "$ukfnamelower" ]; then
+            echo $jname,$jod found in UKf members as $ukforg >>$MISMATCH
+            mismatchcrossref+=($ukforg)
+            match=1
+         fi
+    # let's increment our counter
+        count=$[$count+1]
+    done
+    # if we didn't find a match, then they are not in UKf members, so log in $NOTINMEMBERS
+    if [ $match -eq 0 ]; then
+       echo $jod, $jname not in UKf members >> $NOTINMEMBERS
+    fi
+done
+
+# reset our second counter
+counta=0
+# find out the length of mismatchcrossref
+LENGTHMISMATCHCROSSREF=${#mismatchcrossref[@]}
+
+# this is the second loop, comparing sf against ukf members
+for (( k=0; k<${LENGTHSF}; k++ )); do
+    # we need to log two states, a match and also where there is a mismatch
+    # reset them to 0
+    match=0
+    mismatch=0
+    # same array as earlier, so we need to pull out number and name to seperate field
+    ukforg=$(echo ${ukfmembers[$k]} | cut -f1 -d, )
+    ukfname=$(echo ${ukfmembers[$k]} | cut -f2- -d, )
+
+for (( j=0; j<${LENGTHUKF}; j++ )); do
+    # we are only doing number comparisons, so we just pull out the number for sfmembers
+    jod=$(echo ${sfmembers[$j]} | cut -f1 -d, )
+    # if the numbers match we break
+    if [ "$jod" == "$ukforg" ]; then
+            match=1
+            break
+    fi
+done
+    # increment our second counter
+    counta=$[$counta+1]
+    # if the counter equals our array length, then we can break
+    if [ $counta -eq ${#ukfmembers[@]} ] && [ $counta -eq ${#sfmembers[@]} ] ; then
+        match=1
+        break
+    fi
+    # if there is no match we check the mismatchcrossref
+    if [ $match -eq 0 ]; then
+        # loop through the array mismatchcrossref
+        for (( l=0; l<${LENGTHMISMATCHCROSSREF}; l++ )); do
+            mismatchid=$(echo ${mismatchcrossref[$l]})
+            # if the ID is in the mismatchcrossref array, then it appears in $MISMATCH and doesn't need to appear here
+            if [ "$ukforg" == "$mismatchid" ]; then
+                     mismatch=1
+                     break
+            fi
+        done
+        # if we didn't find it in mismatch, then we have no contacts log in $NOTINSF
+        if [ $mismatch -eq 0 ]; then
+            echo $ukforg, $ukfname no SF contacts >> $NOTINSF
+        fi
+    fi
+done
+
+# lets count up how many comparisons we made.
+count=$[$count+$counta]
+
+
+# output
+echo --- Compare Members ---
+echo Comparisons made $count
+echo $(date)
+echo --- Organisations that do not match in Salesforce vs UKf members ---
+cat $NOTMATCH
+
+echo --- Organisations that are in Salesforce but not in UKf members ---
+cat $NOTINMEMBERS
+
+echo --- Organisations that are in Salesforce but under a different ukforg in UKf members ---
+cat $MISMATCH
+
+echo --- Organisations that are in UKf members, but have no Salesforce contacts ---
+sort -u $NOTINSF
+
+# remove the temporary files
+rm $NOTMATCH $NOTINMEMBERS $SFMEMBERSCSV $MEMBERSCSV $MISMATCH $TMPFILE $NOTINSF
+exit
diff --git a/utilities/members-to-csv.xsl b/utilities/members-to-csv.xsl
new file mode 100644
index 00000000..08512ae1
--- /dev/null
+++ b/utilities/members-to-csv.xsl
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<xsl:stylesheet version="1.0"
+    xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+    xmlns:members="http://ukfederation.org.uk/2007/01/members"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+
+    <xsl:output method="text" encoding="UTF-8"/>
+
+    <xsl:template match="members:Member">
+            <xsl:text>"</xsl:text>
+            <xsl:value-of select="@ID"/>
+            <xsl:text>","</xsl:text>
+            <xsl:value-of select="members:Name"/>
+            <xsl:text>"</xsl:text>
+            <xsl:text>&#10;</xsl:text>
+    </xsl:template>
+
+    <xsl:template match="text()">
+        <!-- do nothing -->
+    </xsl:template>
+</xsl:stylesheet>