diff --git a/Project/Web/MachineBridge/MachineBridge.Customs.cs b/Project/Web/MachineBridge/MachineBridge.Customs.cs
new file mode 100644
index 0000000..308975b
--- /dev/null
+++ b/Project/Web/MachineBridge/MachineBridge.Customs.cs
@@ -0,0 +1,178 @@
+using System;
+using System.Collections.Generic;
+using System.Data;
+using System.Data.SqlClient;
+using System.Linq;
+using Newtonsoft.Json;
+using FCOMMON;
+
+namespace Project.Web
+{
+    public partial class MachineBridge
+    {
+        #region Customs API
+
+        /// <summary>
+        /// 업체정보 목록 조회
+        /// </summary>
+        public string Customs_GetList(string searchKey = "")
+        {
+            try
+            {
+                // 로그인 체크
+                if (string.IsNullOrEmpty(info.Login.no) || string.IsNullOrEmpty(info.Login.gcode))
+                {
+                    return JsonConvert.SerializeObject(new { Success = false, Message = "로그인이 필요합니다." });
+                }
+
+                var connStr = Properties.Settings.Default.CS;
+                using (var conn = new SqlConnection(connStr))
+                {
+                    conn.Open();
+                    var cmd = new SqlCommand();
+                    cmd.Connection = conn;
+
+                    // 검색 조건이 있으면 필터링
+                    if (string.IsNullOrEmpty(searchKey))
+                    {
+                        cmd.CommandText = @"
+                            SELECT idx, grp, name, owner, ownertel, address, tel, fax, email, memo, 
+                                   wuid, wdate, uptae, staff, stafftel, name2, gcode
+                            FROM Customs WITH (nolock)
+                            WHERE gcode = @gcode
+                            ORDER BY name";
+                    }
+                    else
+                    {
+                        // 여러 필드에서 검색 (fCustoms.cs의 btFind_Click 로직 참고)
+                        cmd.CommandText = @"
+                            SELECT idx, grp, name, owner, ownertel, address, tel, fax, email, memo, 
+                                   wuid, wdate, uptae, staff, stafftel, name2, gcode
+                            FROM Customs WITH (nolock)
+                            WHERE gcode = @gcode 
+                              AND (stafftel LIKE @search 
+                                   OR grp LIKE @search 
+                                   OR name2 LIKE @search 
+                                   OR name LIKE @search 
+                                   OR owner LIKE @search 
+                                   OR address LIKE @search 
+                                   OR tel LIKE @search 
+                                   OR email LIKE @search 
+                                   OR memo LIKE @search 
+                                   OR staff LIKE @search)
+                            ORDER BY name";
+                        cmd.Parameters.Add("@search", SqlDbType.NVarChar).Value = "%" + searchKey.Replace("'", "''") + "%";
+                    }
+
+                    cmd.Parameters.Add("@gcode", SqlDbType.VarChar).Value = info.Login.gcode;
+
+                    var list = new List<object>();
+                    using (var reader = cmd.ExecuteReader())
+                    {
+                        while (reader.Read())
+                        {
+                            list.Add(new
+                            {
+                                idx = reader["idx"],
+                                grp = reader["grp"] != DBNull.Value ? reader["grp"] : "",
+                                name = reader["name"] != DBNull.Value ? reader["name"] : "",
+                                owner = reader["owner"] != DBNull.Value ? reader["owner"] : "",
+                                ownertel = reader["ownertel"] != DBNull.Value ? reader["ownertel"] : "",
+                                address = reader["address"] != DBNull.Value ? reader["address"] : "",
+                                tel = reader["tel"] != DBNull.Value ? reader["tel"] : "",
+                                fax = reader["fax"] != DBNull.Value ? reader["fax"] : "",
+                                email = reader["email"] != DBNull.Value ? reader["email"] : "",
+                                memo = reader["memo"] != DBNull.Value ? reader["memo"] : "",
+                                wuid = reader["wuid"],
+                                wdate = reader["wdate"],
+                                uptae = reader["uptae"] != DBNull.Value ? reader["uptae"] : "",
+                                staff = reader["staff"] != DBNull.Value ? reader["staff"] : "",
+                                stafftel = reader["stafftel"] != DBNull.Value ? reader["stafftel"] : "",
+                                name2 = reader["name2"] != DBNull.Value ? reader["name2"] : "",
+                                gcode = reader["gcode"]
+                            });
+                        }
+                    }
+
+                    return JsonConvert.SerializeObject(new { Success = true, Message = "", Data = list });
+                }
+            }
+            catch (Exception ex)
+            {
+                return JsonConvert.SerializeObject(new { Success = false, Message = ex.Message, Data = (object)null });
+            }
+        }
+
+        /// <summary>
+        /// 업체정보 상세 조회
+        /// </summary>
+        public string Customs_GetDetail(int idx)
+        {
+            try
+            {
+                // 로그인 체크
+                if (string.IsNullOrEmpty(info.Login.no) || string.IsNullOrEmpty(info.Login.gcode))
+                {
+                    return JsonConvert.SerializeObject(new { Success = false, Message = "로그인이 필요합니다." });
+                }
+
+                var connStr = Properties.Settings.Default.CS;
+                using (var conn = new SqlConnection(connStr))
+                {
+                    conn.Open();
+                    var cmd = new SqlCommand();
+                    cmd.Connection = conn;
+                    cmd.CommandText = @"
+                        SELECT idx, grp, name, owner, ownertel, address, tel, fax, email, memo, 
+                               wuid, wdate, uptae, staff, stafftel, name2, gcode
+                        FROM Customs WITH (nolock)
+                        WHERE idx = @idx AND gcode = @gcode";
+
+                    cmd.Parameters.Add("@idx", SqlDbType.Int).Value = idx;
+                    cmd.Parameters.Add("@gcode", SqlDbType.VarChar).Value = info.Login.gcode;
+
+                    object result = null;
+                    using (var reader = cmd.ExecuteReader())
+                    {
+                        if (reader.Read())
+                        {
+                            result = new
+                            {
+                                idx = reader["idx"],
+                                grp = reader["grp"] != DBNull.Value ? reader["grp"] : "",
+                                name = reader["name"] != DBNull.Value ? reader["name"] : "",
+                                owner = reader["owner"] != DBNull.Value ? reader["owner"] : "",
+                                ownertel = reader["ownertel"] != DBNull.Value ? reader["ownertel"] : "",
+                                address = reader["address"] != DBNull.Value ? reader["address"] : "",
+                                tel = reader["tel"] != DBNull.Value ? reader["tel"] : "",
+                                fax = reader["fax"] != DBNull.Value ? reader["fax"] : "",
+                                email = reader["email"] != DBNull.Value ? reader["email"] : "",
+                                memo = reader["memo"] != DBNull.Value ? reader["memo"] : "",
+                                wuid = reader["wuid"],
+                                wdate = reader["wdate"],
+                                uptae = reader["uptae"] != DBNull.Value ? reader["uptae"] : "",
+                                staff = reader["staff"] != DBNull.Value ? reader["staff"] : "",
+                                stafftel = reader["stafftel"] != DBNull.Value ? reader["stafftel"] : "",
+                                name2 = reader["name2"] != DBNull.Value ? reader["name2"] : "",
+                                gcode = reader["gcode"]
+                            };
+                        }
+                    }
+
+                    if (result == null)
+                    {
+                        return JsonConvert.SerializeObject(new { Success = false, Message = "해당 업체 정보를 찾을 수 없습니다.", Data = (object)null });
+                    }
+
+                    return JsonConvert.SerializeObject(new { Success = true, Message = "", Data = result });
+                }
+            }
+            catch (Exception ex)
+            {
+                return JsonConvert.SerializeObject(new { Success = false, Message = ex.Message, Data = (object)null });
+            }
+        }
+
+        #endregion
+    }
+}
diff --git a/Project/frontend/src/communication.ts b/Project/frontend/src/communication.ts
index edc4e41..66cdabf 100644
--- a/Project/frontend/src/communication.ts
+++ b/Project/frontend/src/communication.ts
@@ -41,6 +41,7 @@ import type {
   MachineBridgeInterface,
   BoardItem,
   MailItem,
+  CustomItem,
 } from '@/types';
 
 // WebView2 환경 감지
@@ -1278,6 +1279,34 @@ class CommunicationLayer {
       return this.wsRequest<ApiResponse<MailItem[]>>('MAIL_GET_LIST', 'MAIL_LIST_DATA', { startDate, endDate, searchKey });
     }
   }
+
+  /**
+   * 업체정보 목록 조회
+   * @param searchKey 검색어
+   * @returns ApiResponse<CustomItem[]>
+   */
+  public async getCustomsList(searchKey: string = ''): Promise<ApiResponse<CustomItem[]>> {
+    if (isWebView && machine) {
+      const result = await machine.Customs_GetList(searchKey);
+      return JSON.parse(result);
+    } else {
+      return this.wsRequest<ApiResponse<CustomItem[]>>('CUSTOMS_GET_LIST', 'CUSTOMS_LIST_DATA', { searchKey });
+    }
+  }
+
+  /**
+   * 업체정보 상세 조회
+   * @param idx 업체 인덱스
+   * @returns ApiResponse<CustomItem>
+   */
+  public async getCustomsDetail(idx: number): Promise<ApiResponse<CustomItem>> {
+    if (isWebView && machine) {
+      const result = await machine.Customs_GetDetail(idx);
+      return JSON.parse(result);
+    } else {
+      return this.wsRequest<ApiResponse<CustomItem>>('CUSTOMS_GET_DETAIL', 'CUSTOMS_DETAIL_DATA', { idx });
+    }
+  }
 }
 
 export const comms = new CommunicationLayer();
diff --git a/Project/frontend/src/pages/Customs.tsx b/Project/frontend/src/pages/Customs.tsx
index dd9e6c3..cf26688 100644
--- a/Project/frontend/src/pages/Customs.tsx
+++ b/Project/frontend/src/pages/Customs.tsx
@@ -1,21 +1,7 @@
 import { useState, useEffect } from 'react';
 import { Building, Search, RefreshCw } from 'lucide-react';
-
-// 임시 타입 정의 (실제 타입은 백엔드에 맞게 수정 필요)
-interface CustomItem {
-  idx: number;
-  ccode: string;
-  cname: string;
-  gubun: string;
-  addr: string;
-  tel: string;
-  fax: string;
-  email: string;
-  ceo: string;
-  busino: string;
-  uptae: string;
-  jongmok: string;
-}
+import { comms } from '@/communication';
+import type { CustomItem } from '@/types';
 
 export function Customs() {
   const [customsList, setCustomsList] = useState<CustomItem[]>([]);
@@ -29,19 +15,18 @@ export function Customs() {
   const loadData = async () => {
     setLoading(true);
     try {
-      // TODO: 실제 API 호출로 변경 필요
-      // const response = await comms.getCustomsList(searchKey);
-      // if (response.Success && response.Data) {
-      //   setCustomsList(response.Data);
-      // }
-      
-      // 임시 데이터
-      console.log('업체정보 조회 (구현 필요):', { searchKey });
-      alert('업체정보 API가 아직 구현되지 않았습니다.');
-      setCustomsList([]);
+      const response = await comms.getCustomsList(searchKey);
+      if (response.Success && response.Data) {
+        setCustomsList(response.Data);
+      } else {
+        console.error('업체정보 조회 실패:', response.Message);
+        alert(response.Message || '업체정보 조회에 실패했습니다.');
+        setCustomsList([]);
+      }
     } catch (error) {
       console.error('업체정보 로드 오류:', error);
       alert('데이터를 불러오는 중 오류가 발생했습니다.');
+      setCustomsList([]);
     } finally {
       setLoading(false);
     }
@@ -63,7 +48,7 @@ export function Customs() {
               value={searchKey}
               onChange={(e) => setSearchKey(e.target.value)}
               onKeyDown={(e) => e.key === 'Enter' && handleSearch()}
-              placeholder="업체명, 사업자번호, 대표자 등"
+              placeholder="업체명, 대표자, 전화번호, 이메일, 담당자 등"
               className="flex-1 h-10 bg-white/20 border border-white/30 rounded-lg px-3 text-white placeholder-white/50 focus:outline-none focus:ring-2 focus:ring-primary-400"
             />
           </div>
@@ -115,16 +100,21 @@ export function Customs() {
               >
                 <div className="flex items-center justify-between gap-4">
                   <div className="flex-1 min-w-0">
-                    <h4 className="text-white font-medium mb-1">{item.cname}</h4>
-                    <div className="flex items-center gap-4 text-white/60 text-sm">
-                      <div>대표: {item.ceo}</div>
-                      <div>사업자: {item.busino}</div>
-                      <div>업태: {item.uptae}</div>
+                    <h4 className="text-white font-medium mb-1">
+                      {item.name}
+                      {item.name2 && <span className="text-white/60 text-sm ml-2">({item.name2})</span>}
+                    </h4>
+                    <div className="flex items-center gap-4 text-white/60 text-sm flex-wrap">
+                      {item.grp && <div>구분: {item.grp}</div>}
+                      {item.owner && <div>대표: {item.owner}</div>}
+                      {item.uptae && <div>업태: {item.uptae}</div>}
+                      {item.address && <div>{item.address}</div>}
                     </div>
                   </div>
                   <div className="flex flex-col items-end gap-1 flex-shrink-0 text-white/60 text-sm">
-                    <div>{item.tel}</div>
-                    <div>{item.email}</div>
+                    {item.tel && <div>{item.tel}</div>}
+                    {item.email && <div>{item.email}</div>}
+                    {item.staff && <div>담당: {item.staff}</div>}
                   </div>
                 </div>
               </div>
diff --git a/Project/frontend/src/types.ts b/Project/frontend/src/types.ts
index c92fd45..6f327d7 100644
--- a/Project/frontend/src/types.ts
+++ b/Project/frontend/src/types.ts
@@ -462,6 +462,10 @@ export interface MachineBridgeInterface {
 
   // Mail API (메일 발신 내역)
   Mail_GetList(startDate: string, endDate: string, searchKey: string): Promise<string>;
+
+  // Customs API (업체정보)
+  Customs_GetList(searchKey: string): Promise<string>;
+  Customs_GetDetail(idx: number): Promise<string>;
 }
 
 // 사용자 권한 정보 타입
@@ -859,3 +863,24 @@ export interface MailItem {
   cate: string;
   wdate: string | null;
 }
+
+// 업체정보 타입
+export interface CustomItem {
+  idx: number;
+  grp: string;
+  name: string;
+  owner: string;
+  ownertel: string;
+  address: string;
+  tel: string;
+  fax: string;
+  email: string;
+  memo: string;
+  wuid: string;
+  wdate: string;
+  uptae: string;
+  staff: string;
+  stafftel: string;
+  name2: string;
+  gcode: string;
+}