long classNameId = ClassNameLocalServiceUtil.getClassNameId(Sites.class.getName());
    ThemeDisplay themeDisplay  =(ThemeDisplay)renderRequest.getAttribute(WebKeys.THEME_DISPLAY);
    String columnName = "Org. Tag Line";// key
    String tableName = "CUSTOM_FIELDS";
    long siteId = themeDisplay.getSiteGroupId();// userId=classPK
    ExpandoValue expandoObiect=ExpandoValueLocalServiceUtil.getValue(themeDisplay.getCompanyId(), classNameId, tableName, columnName, userId);
    ExpandoValue expandoObiect=ExpandoValueLocalServiceUtil.getValue(companyId, className, tableName, columnName, classPK)
    String value=expandoObiect.getData();
    renderRequest.setAttribute("tagLine", value);
    System.out.println("Field value==>"+value);