diff --git a/barkmanAPI/Program.cs b/barkmanAPI/Program.cs
index 06b051d..9a9de8e 100644
--- a/barkmanAPI/Program.cs
+++ b/barkmanAPI/Program.cs
@@ -47,6 +47,10 @@ var itemStatusGroup = app.MapGroup(prefix: "/itemstatus")
     .WithTags("Item Status")
     .WithDescription("Endpoints for managing item status");
 
+var customerGroup = app.MapGroup(prefix: "/customers")
+    .WithTags("Customers")
+    .WithDescription("Endpoints for managing customers");
+
 inventoryGroup.MapGet("", async (BarkContext db) =>
     await db.Inventory.OrderBy(item => item.Barcode).ToListAsync());
 
@@ -163,6 +167,71 @@ itemStatusGroup.MapDelete("/{id}", async (string id, BarkContext db) =>
     return Results.Ok(new { Message = "Item status deleted successfully" });
 });
 
+customerGroup.MapGet("", async (BarkContext db) =>
+    await db.Customers.OrderBy(customer => customer.Id).ToListAsync());
+
+customerGroup.MapGet("/{id}", async (int id, BarkContext db) =>
+{
+    var customer = await db.Customers
+        .FirstOrDefaultAsync(i => i.Id == id);
+    
+    if (customer == null)
+    {
+        return Results.NotFound(new { Message = "Customer not found" });
+    }
+
+    return Results.Ok(customer);
+});
+
+customerGroup.MapPut("/{id}", async (int id, Customers updatedCustomer, BarkContext db) =>
+{
+    var existingCustomer = await db.Customers.FindAsync(id);
+    if (existingCustomer == null)
+    {
+        return Results.NotFound(new { Message = "Customer not found" });
+    }
+
+    existingCustomer.Name = updatedCustomer.Name;
+    existingCustomer.Company = updatedCustomer.Company;
+    existingCustomer.Email = updatedCustomer.Email;
+    existingCustomer.PhoneNumber = updatedCustomer.PhoneNumber;
+    existingCustomer.Address = updatedCustomer.Address;
+    existingCustomer.BillingTerms = updatedCustomer.BillingTerms;
+    existingCustomer.Notes = updatedCustomer.Notes;
+
+    await db.SaveChangesAsync();
+    return Results.Ok(existingCustomer);
+});
+
+customerGroup.MapPost("", async (Customers newCustomerInput, BarkContext db) =>
+{
+    var newCustomer = new Customers()
+    {
+        Name =  newCustomerInput.Name,
+        Email = newCustomerInput.Email,
+        Company = newCustomerInput.Company,
+        PhoneNumber = newCustomerInput.PhoneNumber,
+        Address = newCustomerInput.Address,
+    };
+
+    db.Customers.Add(newCustomer);
+    await db.SaveChangesAsync();
+    return Results.Created($"/customers/{newCustomer.Id}", newCustomer);
+});
+
+customerGroup.MapDelete("/{id}", async (int id, BarkContext db) =>
+{
+    var customer = await db.Customers.FindAsync(id);
+    if (customer == null)
+    {
+        return Results.NotFound(new { Message = "Customer not found" });
+    }
+
+    db.Customers.Remove(customer);
+    await db.SaveChangesAsync();
+    return Results.Ok(new { Message = "Customer deleted successfully" });
+});
+
 using (var serviceScope = app.Services.CreateScope())
 {
     var dbContext = serviceScope.ServiceProvider.GetRequiredService<BarkContext>();
diff --git a/barkmanui/src/App.tsx b/barkmanui/src/App.tsx
index ac886f0..16fcc53 100644
--- a/barkmanui/src/App.tsx
+++ b/barkmanui/src/App.tsx
@@ -10,6 +10,10 @@ import {BarkHeader} from "./common/components/BarkHeader.tsx";
 import AddItem from "./features/inventory/AddItem.tsx";
 import { Notifications } from '@mantine/notifications';
 import '@mantine/notifications/styles.css';
+import CustomerList from "@/features/customers/CustomerList.tsx";
+import AddCustomer from "@/features/customers/AddCustomer.tsx";
+import CustomerDetail from "@/features/customers/CustomerDetail.tsx";
+import EditCustomer from "@/features/customers/EditCustomer.tsx";
 
 // Create a client
 const queryClient = new QueryClient()
@@ -46,6 +50,11 @@ function App() {
                     <Route path="inventory/itemDetail/:itemId" element={<ItemDetail/>}/>
                     <Route path="inventory/editItem/:itemId" element={<EditItem/>}/>
                     <Route path="inventory/addItem" element={<AddItem/>}/>
+                    <Route path="customers" element={<CustomerList/>}/>
+                    <Route path="customers/addCustomer" element={<AddCustomer/>}/>
+                    <Route path="customers/customerDetail/:customerId" element={<CustomerDetail/>}/>
+                    <Route path="customers/editCustomer/:customerId" element={<EditCustomer/>}/>
+
                 </Routes>
             </>
         </QueryClientProvider>
diff --git a/barkmanui/src/common/components/BarkHeader.tsx b/barkmanui/src/common/components/BarkHeader.tsx
index 7fef196..8ab8ea8 100644
--- a/barkmanui/src/common/components/BarkHeader.tsx
+++ b/barkmanui/src/common/components/BarkHeader.tsx
@@ -7,6 +7,7 @@ import BarkLogo from '@/assets/barklogo.png';
 
 const links = [
     { link: '/', label: 'Home' },
+    { link: '/customers', label: 'Customers' },
     { link: '/inventory', label: 'Inventory' },
 ];
 
diff --git a/barkmanui/src/features/customers/AddCustomer.tsx b/barkmanui/src/features/customers/AddCustomer.tsx
new file mode 100644
index 0000000..1693af2
--- /dev/null
+++ b/barkmanui/src/features/customers/AddCustomer.tsx
@@ -0,0 +1,109 @@
+import {Button, Group, TextInput, Container, Title, Flex} from '@mantine/core';
+import {useForm} from '@mantine/form';
+import {useMutation} from "@tanstack/react-query";
+import {NewCustomer} from "./types.ts";
+import {useNavigate} from "react-router";
+import {IconX, IconCheck} from '@tabler/icons-react';
+import {notifications} from '@mantine/notifications';
+import useCustomerList from "./hooks/useCustomerList.tsx";
+
+
+function AddCustomer() {
+
+    const navigate = useNavigate();
+
+    const customerQuery = useCustomerList();
+
+    const newCustomerForm = useForm<NewCustomer>({
+        mode: 'uncontrolled',
+        initialValues: {
+            name: "",
+            company: "",
+            email: "",
+            phone: "",
+            address: "",
+        },
+
+        validate: {},
+    });
+
+    const updateCustomer = useMutation({
+        mutationFn: async (values: NewCustomer) => {
+
+            const result = await fetch(import.meta.env.VITE_API_URL + '/customers', {
+                method: 'POST',
+                body: JSON.stringify(values),
+                headers: {
+                    'Content-Type': 'application/json'
+                }
+            });
+
+            if (result.ok) {
+                notifications.show({
+                    icon: <IconCheck size={20}/>,
+                    color: "teal",
+                    title: "All good!",
+                    message: "Customer Created",
+                    position: 'top-center',
+                });
+                navigate("/customers");
+
+            }
+
+            if (!result.ok) {
+                notifications.show({
+                    icon: <IconX size={20}/>,
+                    color: "red",
+                    title: "Bummer!",
+                    message: "Something went wrong",
+                    position: 'top-center',
+                });
+                throw new Error('Failed to create customer');
+            }
+
+        },
+
+
+    })
+
+    if (customerQuery.isPending) return 'Loading...'
+    if (customerQuery.error) return 'An error has occurred: ' + customerQuery.error.message
+
+
+
+
+    return (
+        <>
+            <form onSubmit={newCustomerForm.onSubmit(async (values) => await
+                updateCustomer.mutateAsync(values))}>
+                <Container m="lg">
+                    <Flex mih={50}
+                          gap="md"
+                          justify="flex-start"
+                          align="flex-start"
+                          direction="column"
+                          wrap="wrap">
+
+                        <Title order={1}>Add Item</Title>
+                        <TextInput withAsterisk key={newCustomerForm.key('name')} size="md" label="Name"
+                                   placeholder="Name" {...newCustomerForm.getInputProps('name')}/>
+                        <TextInput size="md" key={newCustomerForm.key('company')} label="Company"
+                                   placeholder="Company"{...newCustomerForm.getInputProps('company')}/>
+                        <TextInput withAsterisk size="md" key={newCustomerForm.key('email')} label="Email"
+                                     placeholder="Email" {...newCustomerForm.getInputProps('email')}/>
+                        <TextInput size="md" key={newCustomerForm.key('phone')} label="Phone"
+                                     placeholder="Phone" {...newCustomerForm.getInputProps('phone')}/>
+                        <TextInput size="md" key={newCustomerForm.key('address')} label="Address"
+                                     placeholder="Address" {...newCustomerForm.getInputProps('address')}/>
+
+                        <Group justify="flex-end" mt="md">
+                            <Button type="submit">Submit</Button>
+                        </Group>
+                    </Flex>
+                </Container>
+            </form>
+        </>
+    );
+}
+
+export default AddCustomer;
\ No newline at end of file
diff --git a/barkmanui/src/features/customers/CustomerDetail.tsx b/barkmanui/src/features/customers/CustomerDetail.tsx
new file mode 100644
index 0000000..5d1d297
--- /dev/null
+++ b/barkmanui/src/features/customers/CustomerDetail.tsx
@@ -0,0 +1,45 @@
+import {Container, Text, Title} from "@mantine/core";
+import {Link, useParams} from "react-router";
+import {Customer} from "./types.ts";
+import {useQuery} from "@tanstack/react-query";
+
+
+function CustomerDetail() {
+    const params = useParams();
+
+    const {isPending, error, data, isFetching} = useQuery({
+        queryKey: ['customers', params.customerId],
+        queryFn: async (): Promise<Customer> => {
+            const response = await fetch(
+                import.meta.env.VITE_API_URL + '/customers/' + params.customerId,
+            )
+
+            if (!response.ok) throw new Error('Failed to fetch customer ' + response.statusText)
+
+            return await response.json()
+        },
+    });
+
+    if (isPending) return 'Loading...'
+
+    if (error) return 'An error has occurred: ' + error.message
+
+    return (
+        <>
+            <Container m="lg">
+                <Title order={1}>Customer Detail</Title>
+                <div>{isFetching ? 'Updating...' : ''}</div>
+                <Text>Name: {data.name}</Text>
+                <Text>Company: {data.company}</Text>
+                <Text>Email: {data.email}</Text>
+                <Text>Phone Number: {data.phone}</Text>
+                <Text>Address: ${data.address}</Text>
+                <Text>Notes: {data.notes}</Text>
+
+                <Link to={`/customers/editCustomer/${data.id}`}>Edit</Link>
+            </Container>
+        </>
+    )
+}
+
+export default CustomerDetail
\ No newline at end of file
diff --git a/barkmanui/src/features/customers/CustomerList.tsx b/barkmanui/src/features/customers/CustomerList.tsx
new file mode 100644
index 0000000..24a7f88
--- /dev/null
+++ b/barkmanui/src/features/customers/CustomerList.tsx
@@ -0,0 +1,54 @@
+import {Flex, Table} from '@mantine/core';
+import BarkButton from "../../common/components/BarkButton.tsx";
+import {Link, NavLink} from "react-router";
+import useCustomerList from "./hooks/useCustomerList.tsx";
+
+
+function CustomerList() {
+
+    const customerQuery  = useCustomerList();
+
+    if (customerQuery.isPending) return 'Loading...'
+
+    if (customerQuery.error) return 'An error has occurred: ' + customerQuery.error.message
+
+
+    return (
+        <>
+            <Flex
+                mih={50}
+                gap="xl"
+                justify="center"
+                align="center"
+                direction="row"
+                wrap="wrap"
+            >
+                <p>
+                    ARFF ARFF BARK BARK
+                </p>
+                <NavLink to={'/customers/AddCustomer'}><BarkButton>Add Customer</BarkButton></NavLink>
+            </Flex>
+
+            <Table striped>
+            <Table.Thead>
+                <Table.Tr>
+                    <Table.Th c="red">Name</Table.Th>
+                    <Table.Th c="red">Company</Table.Th>
+                </Table.Tr>
+                </Table.Thead>
+                <Table.Tbody>
+                {customerQuery.data?.map((data) => (
+                    <Table.Tr key={data.id}>
+                        <Table.Td>{data.name}</Table.Td>
+                        <Table.Td>{data.company}</Table.Td>
+                        <Table.Td>
+                            <Link to={`/customers/customerDetail/${data.id}`}>Details</Link>
+                        </Table.Td>
+                    </Table.Tr>
+                ))}
+                </Table.Tbody>
+            </Table>
+        </>
+    )
+}
+export default CustomerList;
\ No newline at end of file
diff --git a/barkmanui/src/features/customers/EditCustomer.tsx b/barkmanui/src/features/customers/EditCustomer.tsx
new file mode 100644
index 0000000..f1cb229
--- /dev/null
+++ b/barkmanui/src/features/customers/EditCustomer.tsx
@@ -0,0 +1,134 @@
+import {Button, Group, TextInput, Container, Title, Flex} from '@mantine/core';
+import {useForm} from '@mantine/form';
+import {useNavigate, useParams} from "react-router";
+import {useMutation, useQuery, useQueryClient} from "@tanstack/react-query";
+import {Customer} from "./types.ts";
+import {useEffect} from "react";
+import {notifications} from "@mantine/notifications";
+import {IconCheck, IconX} from "@tabler/icons-react";
+
+type EditableCustomer= Omit<Customer, 'id'>;
+
+function EditCustomer() {
+    const params = useParams();
+    const navigate = useNavigate();
+
+    const editCustomerForm = useForm<EditableCustomer>({
+        mode: 'uncontrolled',
+        initialValues: {
+            name: "",
+            company: "",
+            email: "",
+            phone: "",
+            address: "",
+            billingTerms: "",
+            notes: "",
+        },
+
+        validate: {},
+    });
+
+    const {isPending, error, data, isFetching} = useQuery({
+        queryKey: ['customer', params.customerId],
+        queryFn: async (): Promise<Customer> => {
+            const response = await fetch(
+                import.meta.env.VITE_API_URL + '/customers/' + params.customerId,
+            )
+
+            if (!response.ok) throw new Error('Failed to fetch customer ' + response.statusText)
+
+            return await response.json()
+        },
+    });
+
+    const queryClient = useQueryClient();
+
+    const updateCustomer = useMutation({
+        mutationFn: async (values: EditableCustomer) => {
+
+            // await <call the api, do the things>
+            const result = await fetch(import.meta.env.VITE_API_URL + '/customers/' + params.customerId, {
+                method: 'PUT',
+                body: JSON.stringify(values),
+                headers: {
+                    'Content-Type': 'application/json'
+                }
+            });
+
+            if (result.ok) {
+                notifications.show({
+                    icon: <IconCheck size={20} />,
+                    color:"teal",
+                    title: "All good!",
+                    message: "Customer Updated",
+                    position: 'top-center',
+                });
+                navigate("/customers");
+
+            }
+
+            if (!result.ok) {
+                notifications.show({
+                    icon: <IconX size={20} />,
+                    color:"red",
+                    title: "Bummer!",
+                    message: "Something went wrong",
+                    position: 'top-center',
+                });
+                throw new Error('Failed to update customer');
+            }
+
+            // invalidate the queries so they pull updated information
+            // this is a prefix, so it covers both the query that pulls a list, and also `['customers', customerId]` in this file
+            await queryClient.invalidateQueries({
+                queryKey: ['customers']
+            });
+        }
+    })
+
+    useEffect(() => {
+        if (data) {
+            // Even if query.data changes, form will be initialized only once
+            editCustomerForm.initialize(data);
+        }
+        // eslint-disable-next-line react-hooks/exhaustive-deps
+    }, [data]);
+
+    if (isPending) return 'Loading...'
+
+    if (error) return 'An error has occurred: ' + error.message
+
+    return (
+        <form onSubmit={editCustomerForm.onSubmit(async (values) => await
+            updateCustomer.mutateAsync(values))}>
+            <Container m="lg">
+                <Flex mih={50}
+                      gap="md"
+                      justify="flex-start"
+                      align="flex-start"
+                      direction="column"
+                      wrap="wrap">
+
+                    <div>{isFetching ? 'Updating...' : ''}</div>
+                    <Title order={1}>Edit Customer</Title>
+                    <TextInput withAsterisk key={editCustomerForm.key('name')} size="md" label="Name"
+                               placeholder="Name" {...editCustomerForm.getInputProps('name')}/>
+                    <TextInput size="md" key={editCustomerForm.key('company')} label="Company"
+                               placeholder="Company"{...editCustomerForm.getInputProps('company')}/>
+                    <TextInput withAsterisk size="md" key={editCustomerForm.key('email')} label="Email"
+                               placeholder="Email" {...editCustomerForm.getInputProps('email')}/>
+                    <TextInput size="md" key={editCustomerForm.key('phone')} label="Phone"
+                               placeholder="Phone" {...editCustomerForm.getInputProps('phone')}/>
+                    <TextInput size="md" key={editCustomerForm.key('address')} label="Address"
+                               placeholder="Address" {...editCustomerForm.getInputProps('address')}/>
+
+                    <Group justify="flex-end" mt="md">
+                        <Button type="submit">Submit</Button>
+                    </Group>
+                </Flex>
+            </Container>
+        </form>
+    );
+}
+
+export default EditCustomer;
\ No newline at end of file
diff --git a/barkmanui/src/features/customers/hooks/useCustomerList.tsx b/barkmanui/src/features/customers/hooks/useCustomerList.tsx
new file mode 100644
index 0000000..293a3a7
--- /dev/null
+++ b/barkmanui/src/features/customers/hooks/useCustomerList.tsx
@@ -0,0 +1,17 @@
+import {useQuery} from "@tanstack/react-query";
+import {Customer} from "../types.ts";
+
+    const useCustomerList = () => useQuery({
+        queryKey: ['customer'],
+        queryFn: async (): Promise<Customer[]> => {
+            const response = await fetch(
+                import.meta.env.VITE_API_URL + '/customers',
+            )
+
+            if (!response.ok) throw new Error('Failed to fetch customers ' + response.statusText)
+
+            return await response.json()
+        },
+    });
+
+export default useCustomerList;
\ No newline at end of file
diff --git a/barkmanui/src/features/customers/types.ts b/barkmanui/src/features/customers/types.ts
new file mode 100644
index 0000000..6451203
--- /dev/null
+++ b/barkmanui/src/features/customers/types.ts
@@ -0,0 +1,17 @@
+export interface Customer {
+    id: number,
+    name: string,
+    company: string,
+    email: string,
+    phone: string,
+    address: string,
+    billingTerms: string,
+    notes: string,
+}
+export interface NewCustomer {
+    name: string,
+    company: string,
+    email: string,
+    phone: string,
+    address: string,
+}
\ No newline at end of file