diff --git a/src/company_gui.cpp b/src/company_gui.cpp
--- a/src/company_gui.cpp
+++ b/src/company_gui.cpp
@@ -319,7 +319,7 @@ struct CompanyFinancesWindow : Window {
 			case WID_CF_BALANCE_VALUE:
 			case WID_CF_LOAN_VALUE:
 			case WID_CF_TOTAL_VALUE:
-				SetDParam(0, CompanyFinancesWindow::max_money);
+				SetDParamMaxValue(0, CompanyFinancesWindow::max_money);
 				size->width = max(GetStringBoundingBox(STR_FINANCES_NEGATIVE_INCOME).width, GetStringBoundingBox(STR_FINANCES_POSITIVE_INCOME).width) + padding.width;
 				break;
 
@@ -1691,12 +1691,12 @@ struct CompanyInfrastructureWindow : Win
 				max_val = max(max_val, c->infrastructure.airport);
 				max_cost = max(max_cost, AirportMaintenanceCost(c->index));
 
-				SetDParam(0, max_val);
-				SetDParam(1, max_cost * 12); // Convert to per year
+				SetDParamMaxValue(0, max_val);
+				SetDParamMaxValue(1, max_cost * 12); // Convert to per year
 				size->width = max(size->width, GetStringBoundingBox(_settings_game.economy.infrastructure_maintenance ? STR_COMPANY_INFRASTRUCTURE_VIEW_COST : STR_WHITE_COMMA).width + 20); // Reserve some wiggle room.
 
 				if (_settings_game.economy.infrastructure_maintenance) {
-					SetDParam(0, this->GetTotalMaintenanceCost() * 12); // Convert to per year
+					SetDParamMaxValue(0, this->GetTotalMaintenanceCost() * 12); // Convert to per year
 					this->total_width = GetStringBoundingBox(STR_COMPANY_INFRASTRUCTURE_VIEW_TOTAL).width + 20;
 					size->width = max(size->width, this->total_width);
 				}
@@ -2095,14 +2095,14 @@ struct CompanyWindow : Window
 				break;
 
 			case WID_C_DESC_VEHICLE_COUNTS:
-				SetDParam(0, 5000); // Maximum number of vehicles
+				SetDParamMaxValue(0, 5000); // Maximum number of vehicles
 				for (uint i = 0; i < lengthof(_company_view_vehicle_count_strings); i++) {
 					size->width = max(size->width, GetStringBoundingBox(_company_view_vehicle_count_strings[i]).width);
 				}
 				break;
 
 			case WID_C_DESC_INFRASTRUCTURE_COUNTS:
-				SetDParam(0, UINT_MAX);
+				SetDParamMaxValue(0, UINT_MAX);
 				size->width = max(size->width, GetStringBoundingBox(STR_COMPANY_VIEW_INFRASTRUCTURE_RAIL).width);
 				size->width = max(size->width, GetStringBoundingBox(STR_COMPANY_VIEW_INFRASTRUCTURE_ROAD).width);
 				size->width = max(size->width, GetStringBoundingBox(STR_COMPANY_VIEW_INFRASTRUCTURE_WATER).width);
@@ -2115,7 +2115,7 @@ struct CompanyWindow : Window
 				const Company *c2;
 
 				FOR_ALL_COMPANIES(c2) {
-					SetDParam(0, 25);
+					SetDParamMaxValue(0, 75);
 					SetDParam(1, c2->index);
 
 					size->width = max(size->width, GetStringBoundingBox(STR_COMPANY_VIEW_SHARES_OWNED_BY).width);