diff --git a/.github/workflows/documentation.yaml b/.github/workflows/documentation.yaml
index ad407c4..eb7652b 100644
--- a/.github/workflows/documentation.yaml
+++ b/.github/workflows/documentation.yaml
@@ -5,8 +5,6 @@ on:
     branches:
     - main
   pull_request:
-    branches:
-    - '*'
 
 jobs:
   doc-build:
diff --git a/.github/workflows/lint-actions.yaml b/.github/workflows/lint-actions.yaml
index f4af2f2..9f7db0d 100644
--- a/.github/workflows/lint-actions.yaml
+++ b/.github/workflows/lint-actions.yaml
@@ -2,10 +2,6 @@ name: Python-Lint
 
 on:
   push:
-    paths:
-    - '*.py'
-    - poetry.lock
-    - pyproject.toml
   pull_request:
 
 jobs:
@@ -49,7 +45,7 @@ jobs:
     - run: poetry install --without develop,doc
     - name: Run linters
       run: |
-        mypy src tests --install-types --non-interactive
+        mypy src tests
 
   ruff:
     runs-on: ubuntu-latest
@@ -72,21 +68,19 @@ jobs:
       uses: snok/install-poetry@v1
       with:
         version: 1.4.2
+        virtualenvs-create: true
         virtualenvs-path: ~/local/share/virtualenvs
-    - name: Cache pipenv
-      id: cache-pipenv
-      uses: actions/cache@v3
-      with:
-        path: ~/.local/share/virtualenvs
-        key: venv
     - name: Check out Git repository
       uses: actions/checkout@v3
+    - name: Install root, pip-licenses & pip-audit
+      run: |
+        poetry install --only-root
+        poetry run pip install pip-licenses pip-audit
     - name: Poetry export
       run: poetry export -f requirements.txt --output requirements.txt
     - name: Check license
       run: |
-        pip install pip-licenses
-        pip-licenses --format=markdown --output-file=license-summary.md
+        poetry run pip-licenses --format=markdown --output-file=license-summary.md
     - name: Archive license summary
       uses: actions/upload-artifact@v3
       with:
@@ -96,6 +90,4 @@ jobs:
           requirements.txt
     - name: Check requirements security with pip-audit
       run: |
-        pip install pip-audit
-        pip-audit -r requirements.txt --no-deps --disable-pip || true
-        pip-audit -r requirements.txt --format=markdown --output=lbr-audit.md --no-deps --disable-pip
+        poetry run pip-audit --format markdown -o lbr-audit.md
diff --git a/.github/workflows/test-and-build-action.yaml b/.github/workflows/test-and-build-action.yaml
index 6f71443..758f932 100644
--- a/.github/workflows/test-and-build-action.yaml
+++ b/.github/workflows/test-and-build-action.yaml
@@ -3,10 +3,6 @@ name: Test & Build
 on:
   pull_request:
   push:
-    paths:
-    - '*.py'
-    - poetry.lock
-    - pyproject.toml
 
 jobs:
   test:
diff --git a/.gitignore b/.gitignore
index a65ae9a..1735aea 100644
--- a/.gitignore
+++ b/.gitignore
@@ -215,3 +215,4 @@ replay_pid*
 /documentations/aki_prj23_transparenzregister.*
 /documentations/modules.rst
 /unit-test-results.xml
+/lbr-audit.md
diff --git a/poetry.lock b/poetry.lock
index 7fb9967..b2e72e5 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -672,6 +672,52 @@ files = [
 [package.extras]
 toml = ["tomli"]
 
+[[package]]
+name = "cryptography"
+version = "41.0.3"
+description = "cryptography is a package which provides cryptographic recipes and primitives to Python developers."
+category = "dev"
+optional = false
+python-versions = ">=3.7"
+files = [
+    {file = "cryptography-41.0.3-cp37-abi3-macosx_10_12_universal2.whl", hash = "sha256:652627a055cb52a84f8c448185922241dd5217443ca194d5739b44612c5e6507"},
+    {file = "cryptography-41.0.3-cp37-abi3-macosx_10_12_x86_64.whl", hash = "sha256:8f09daa483aedea50d249ef98ed500569841d6498aa9c9f4b0531b9964658922"},
+    {file = "cryptography-41.0.3-cp37-abi3-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:4fd871184321100fb400d759ad0cddddf284c4b696568204d281c902fc7b0d81"},
+    {file = "cryptography-41.0.3-cp37-abi3-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:84537453d57f55a50a5b6835622ee405816999a7113267739a1b4581f83535bd"},
+    {file = "cryptography-41.0.3-cp37-abi3-manylinux_2_28_aarch64.whl", hash = "sha256:3fb248989b6363906827284cd20cca63bb1a757e0a2864d4c1682a985e3dca47"},
+    {file = "cryptography-41.0.3-cp37-abi3-manylinux_2_28_x86_64.whl", hash = "sha256:42cb413e01a5d36da9929baa9d70ca90d90b969269e5a12d39c1e0d475010116"},
+    {file = "cryptography-41.0.3-cp37-abi3-musllinux_1_1_aarch64.whl", hash = "sha256:aeb57c421b34af8f9fe830e1955bf493a86a7996cc1338fe41b30047d16e962c"},
+    {file = "cryptography-41.0.3-cp37-abi3-musllinux_1_1_x86_64.whl", hash = "sha256:6af1c6387c531cd364b72c28daa29232162010d952ceb7e5ca8e2827526aceae"},
+    {file = "cryptography-41.0.3-cp37-abi3-win32.whl", hash = "sha256:0d09fb5356f975974dbcb595ad2d178305e5050656affb7890a1583f5e02a306"},
+    {file = "cryptography-41.0.3-cp37-abi3-win_amd64.whl", hash = "sha256:a983e441a00a9d57a4d7c91b3116a37ae602907a7618b882c8013b5762e80574"},
+    {file = "cryptography-41.0.3-pp310-pypy310_pp73-macosx_10_12_x86_64.whl", hash = "sha256:5259cb659aa43005eb55a0e4ff2c825ca111a0da1814202c64d28a985d33b087"},
+    {file = "cryptography-41.0.3-pp310-pypy310_pp73-manylinux_2_28_aarch64.whl", hash = "sha256:67e120e9a577c64fe1f611e53b30b3e69744e5910ff3b6e97e935aeb96005858"},
+    {file = "cryptography-41.0.3-pp310-pypy310_pp73-manylinux_2_28_x86_64.whl", hash = "sha256:7efe8041897fe7a50863e51b77789b657a133c75c3b094e51b5e4b5cec7bf906"},
+    {file = "cryptography-41.0.3-pp310-pypy310_pp73-win_amd64.whl", hash = "sha256:ce785cf81a7bdade534297ef9e490ddff800d956625020ab2ec2780a556c313e"},
+    {file = "cryptography-41.0.3-pp38-pypy38_pp73-macosx_10_12_x86_64.whl", hash = "sha256:57a51b89f954f216a81c9d057bf1a24e2f36e764a1ca9a501a6964eb4a6800dd"},
+    {file = "cryptography-41.0.3-pp38-pypy38_pp73-manylinux_2_28_aarch64.whl", hash = "sha256:4c2f0d35703d61002a2bbdcf15548ebb701cfdd83cdc12471d2bae80878a4207"},
+    {file = "cryptography-41.0.3-pp38-pypy38_pp73-manylinux_2_28_x86_64.whl", hash = "sha256:23c2d778cf829f7d0ae180600b17e9fceea3c2ef8b31a99e3c694cbbf3a24b84"},
+    {file = "cryptography-41.0.3-pp38-pypy38_pp73-win_amd64.whl", hash = "sha256:95dd7f261bb76948b52a5330ba5202b91a26fbac13ad0e9fc8a3ac04752058c7"},
+    {file = "cryptography-41.0.3-pp39-pypy39_pp73-macosx_10_12_x86_64.whl", hash = "sha256:41d7aa7cdfded09b3d73a47f429c298e80796c8e825ddfadc84c8a7f12df212d"},
+    {file = "cryptography-41.0.3-pp39-pypy39_pp73-manylinux_2_28_aarch64.whl", hash = "sha256:d0d651aa754ef58d75cec6edfbd21259d93810b73f6ec246436a21b7841908de"},
+    {file = "cryptography-41.0.3-pp39-pypy39_pp73-manylinux_2_28_x86_64.whl", hash = "sha256:ab8de0d091acbf778f74286f4989cf3d1528336af1b59f3e5d2ebca8b5fe49e1"},
+    {file = "cryptography-41.0.3-pp39-pypy39_pp73-win_amd64.whl", hash = "sha256:a74fbcdb2a0d46fe00504f571a2a540532f4c188e6ccf26f1f178480117b33c4"},
+    {file = "cryptography-41.0.3.tar.gz", hash = "sha256:6d192741113ef5e30d89dcb5b956ef4e1578f304708701b8b73d38e3e1461f34"},
+]
+
+[package.dependencies]
+cffi = ">=1.12"
+
+[package.extras]
+docs = ["sphinx (>=5.3.0)", "sphinx-rtd-theme (>=1.1.1)"]
+docstest = ["pyenchant (>=1.6.11)", "sphinxcontrib-spelling (>=4.0.1)", "twine (>=1.12.0)"]
+nox = ["nox"]
+pep8test = ["black", "check-sdist", "mypy", "ruff"]
+sdist = ["build"]
+ssh = ["bcrypt (>=3.1.5)"]
+test = ["pretend", "pytest (>=6.2.0)", "pytest-benchmark", "pytest-cov", "pytest-xdist"]
+test-randomorder = ["pytest-randomly"]
+
 [[package]]
 name = "cycler"
 version = "0.11.0"
@@ -4442,6 +4488,21 @@ exceptiongroup = "*"
 trio = ">=0.11"
 wsproto = ">=0.14"
 
+[[package]]
+name = "types-pyopenssl"
+version = "23.2.0.2"
+description = "Typing stubs for pyOpenSSL"
+category = "dev"
+optional = false
+python-versions = "*"
+files = [
+    {file = "types-pyOpenSSL-23.2.0.2.tar.gz", hash = "sha256:6a010dac9ecd42b582d7dd2cc3e9e40486b79b3b64bb2fffba1474ff96af906d"},
+    {file = "types_pyOpenSSL-23.2.0.2-py3-none-any.whl", hash = "sha256:19536aa3debfbe25a918cf0d898e9f5fbbe6f3594a429da7914bf331deb1b342"},
+]
+
+[package.dependencies]
+cryptography = ">=35.0.0"
+
 [[package]]
 name = "types-pytz"
 version = "2023.3.0.1"
@@ -4469,6 +4530,18 @@ files = [
 [package.dependencies]
 types-urllib3 = "*"
 
+[[package]]
+name = "types-setuptools"
+version = "68.1.0.0"
+description = "Typing stubs for setuptools"
+category = "dev"
+optional = false
+python-versions = "*"
+files = [
+    {file = "types-setuptools-68.1.0.0.tar.gz", hash = "sha256:2bc9b0c0818f77bdcec619970e452b320a423bb3ac074f5f8bc9300ac281c4ae"},
+    {file = "types_setuptools-68.1.0.0-py3-none-any.whl", hash = "sha256:0c1618fb14850cb482adbec602bbb519c43f24942d66d66196bc7528320f33b1"},
+]
+
 [[package]]
 name = "types-tqdm"
 version = "4.66.0.1"
@@ -4694,4 +4767,4 @@ h11 = ">=0.9.0,<1"
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.11"
-content-hash = "dbf83df77d434d397b384a0c7fdcf68c4594e7e77cd195e247f3fe2030d79697"
+content-hash = "946f6b81f3072e2a3d93482405f7bbe6f02218a3c2097c1f3f8246363c7e15c2"
diff --git a/pyproject.toml b/pyproject.toml
index b88d39a..facf200 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -2,25 +2,30 @@
 build-backend = "poetry.core.masonry.api"
 requires = ["poetry-core"]
 
-[tookl.mypy]
-disallow_untyped_defs = true
-exclude = ".ipynb_checkpoints, .mypy_cache, .mytest_cache, build"
-follow_imports = "silent"
-ignore_missing_imports = true
-plugins = ["sqlalchemy.ext.mypy.plugin"]
-python_version = "3.11"
-warn_redundant_casts = true
-warn_unused_ignores = true
-
 [tool.black]
 target-version = ["py311"]
 
+[tool.coverage.report]
+exclude_also = ["if __name__ == .__main__.:"]
+
 [tool.coverage.run]
 branch = true
 dynamic_context = "test_function"
 relative_files = true
 source = ["src"]
 
+[tool.mypy]
+disallow_untyped_defs = true
+exclude = ".ipynb_checkpoints, .mypy_cache, .mytest_cache, build"
+follow_imports = "silent"
+ignore_missing_imports = true
+install_types = true
+non_interactive = true
+plugins = ["sqlalchemy.ext.mypy.plugin"]
+python_version = "3.11"
+warn_redundant_casts = true
+warn_unused_ignores = true
+
 [tool.poetry]
 authors = ["AKI Projektgruppe 23"]
 description = "A project analysing the german transparenzregister and other data sources to find shared business interests and shared personal and other links for lots of companies."
@@ -67,7 +72,9 @@ pandas-stubs = "^2.0.1.230501"
 pip-audit = "^2.6.1"
 pip-licenses = "^4.3.2"
 ruff = "^0.0.270"
+types-pyOpenSSL = "*"
 types-requests = "^2.31.0.1"
+types-setuptools = "*"
 types-tqdm = "^4.65.0"
 
 [tool.poetry.group.test.dependencies]
@@ -108,7 +115,6 @@ line-length = 88
 select = ["E", "F", "B", "I", "S", "RSE", "RET", "SLF", "SIM", "TID", "PD", "PL", "PLE", "PLR", "PLW", "NPY", "UP", "D", "N", "A", "C4", "T20", "PT"]
 src = ["src"]
 target-version = "py311"
-# Avoid trying to fix flake8-bugbear (`B`) violations.
 unfixable = ["B"]
 
 [tool.ruff.flake8-builtins]
diff --git a/requirements.txt b/requirements.txt
deleted file mode 100644
index 58c3acf..0000000
--- a/requirements.txt
+++ /dev/null
@@ -1,21 +0,0 @@
-colorama==0.4.6 ; python_version >= "3.11" and python_version < "4.0" and sys_platform == "win32" or python_version >= "3.11" and python_version < "4.0" and platform_system == "Windows"
-contourpy==1.1.0 ; python_version >= "3.11" and python_version < "4.0"
-cycler==0.11.0 ; python_version >= "3.11" and python_version < "4.0"
-fonttools==4.40.0 ; python_version >= "3.11" and python_version < "4.0"
-kiwisolver==1.4.4 ; python_version >= "3.11" and python_version < "4.0"
-loguru==0.7.0 ; python_version >= "3.11" and python_version < "4.0"
-matplotlib==3.7.1 ; python_version >= "3.11" and python_version < "4.0"
-numpy==1.25.0 ; python_version >= "3.11" and python_version < "4.0"
-packaging==23.1 ; python_version >= "3.11" and python_version < "4.0"
-pandas==2.0.2 ; python_version >= "3.11" and python_version < "4.0"
-pillow==9.5.0 ; python_version >= "3.11" and python_version < "4.0"
-plotly==5.15.0 ; python_version >= "3.11" and python_version < "4.0"
-pyparsing==3.0.9 ; python_version >= "3.11" and python_version < "4.0"
-python-dateutil==2.8.2 ; python_version >= "3.11" and python_version < "4.0"
-pytz==2023.3 ; python_version >= "3.11" and python_version < "4.0"
-seaborn==0.12.2 ; python_version >= "3.11" and python_version < "4.0"
-six==1.16.0 ; python_version >= "3.11" and python_version < "4.0"
-tenacity==8.2.2 ; python_version >= "3.11" and python_version < "4.0"
-tqdm==4.65.0 ; python_version >= "3.11" and python_version < "4.0"
-tzdata==2023.3 ; python_version >= "3.11" and python_version < "4.0"
-win32-setctime==1.1.0 ; python_version >= "3.11" and python_version < "4.0" and sys_platform == "win32"
diff --git a/src/aki_prj23_transparenzregister/ui/company_stats_dash.py b/src/aki_prj23_transparenzregister/ui/company_stats_dash.py
index 339cbaf..e069c2f 100644
--- a/src/aki_prj23_transparenzregister/ui/company_stats_dash.py
+++ b/src/aki_prj23_transparenzregister/ui/company_stats_dash.py
@@ -13,7 +13,7 @@ if __name__ == "__main__":
     session = get_session()
     query = session.query(entities.Company)
 
-    companies_df = pd.read_sql(str(query), session.bind)
+    companies_df: pd.DataFrame = pd.read_sql(str(query), session.bind)  # type: ignore
     app = Dash(__name__)
 
     app.layout = dash_table.DataTable(
diff --git a/src/aki_prj23_transparenzregister/utils/mongo/company_mongo_service.py b/src/aki_prj23_transparenzregister/utils/mongo/company_mongo_service.py
index fc6ca8c..40f4574 100644
--- a/src/aki_prj23_transparenzregister/utils/mongo/company_mongo_service.py
+++ b/src/aki_prj23_transparenzregister/utils/mongo/company_mongo_service.py
@@ -1,4 +1,6 @@
 """CompanyMongoService."""
+from pymongo.results import InsertOneResult
+
 from aki_prj23_transparenzregister.models.company import Company, CompanyID
 from aki_prj23_transparenzregister.utils.mongo.connector import MongoConnector
 
@@ -37,7 +39,7 @@ class CompanyMongoService:
             return result[0]
         return None
 
-    def insert(self, company: Company):
+    def insert(self, company: Company) -> InsertOneResult:
         """_summary_.
 
         Args:
diff --git a/src/aki_prj23_transparenzregister/utils/mongo/news_mongo_service.py b/src/aki_prj23_transparenzregister/utils/mongo/news_mongo_service.py
index 5ce25f4..0857207 100644
--- a/src/aki_prj23_transparenzregister/utils/mongo/news_mongo_service.py
+++ b/src/aki_prj23_transparenzregister/utils/mongo/news_mongo_service.py
@@ -1,4 +1,6 @@
 """MongoNewsService."""
+from pymongo.results import InsertOneResult
+
 from aki_prj23_transparenzregister.models.news import News
 from aki_prj23_transparenzregister.utils.mongo.connector import MongoConnector
 
@@ -41,7 +43,7 @@ class MongoNewsService:
             return MongoEntryTransformer.transform_outgoing(result[0])
         return None
 
-    def insert(self, news: News):
+    def insert(self, news: News) -> InsertOneResult:
         """_summary_.
 
         Args:
diff --git a/src/aki_prj23_transparenzregister/utils/postgres/connector.py b/src/aki_prj23_transparenzregister/utils/postgres/connector.py
index a8a231a..5fab529 100644
--- a/src/aki_prj23_transparenzregister/utils/postgres/connector.py
+++ b/src/aki_prj23_transparenzregister/utils/postgres/connector.py
@@ -1,14 +1,14 @@
 """Module containing connection utils for PostgreSQL DB."""
 from sqlalchemy import create_engine
-from sqlalchemy.engine import URL
-from sqlalchemy.orm import sessionmaker
+from sqlalchemy.engine import URL, Engine
+from sqlalchemy.orm import Session, sessionmaker
 
 from aki_prj23_transparenzregister.config.config_providers import JsonFileConfigProvider
 from aki_prj23_transparenzregister.config.config_template import PostgreConnectionString
 from aki_prj23_transparenzregister.utils.postgres.entities import Base
 
 
-def get_engine(conn_args: PostgreConnectionString):
+def get_engine(conn_args: PostgreConnectionString) -> Engine:
     """Creates an engine connected to a Postgres instance.
 
     Returns:
@@ -26,7 +26,7 @@ def get_engine(conn_args: PostgreConnectionString):
     return create_engine(url)
 
 
-def get_session():
+def get_session() -> Session:  # pragma: no cover
     """Return PG Session."""
     config_provider = JsonFileConfigProvider("./secrets.json")
     engine = get_engine(config_provider.get_postgre_connection_string())
@@ -34,7 +34,7 @@ def get_session():
     return session()
 
 
-def init_db():
+def init_db() -> None:
     """Initialize DB with all defined entities."""
     config_provider = JsonFileConfigProvider("./secrets.json")
     engine = get_engine(config_provider.get_postgre_connection_string())
diff --git a/src/aki_prj23_transparenzregister/utils/postgres/entities.py b/src/aki_prj23_transparenzregister/utils/postgres/entities.py
index b61252a..53b2a36 100644
--- a/src/aki_prj23_transparenzregister/utils/postgres/entities.py
+++ b/src/aki_prj23_transparenzregister/utils/postgres/entities.py
@@ -17,7 +17,7 @@ from aki_prj23_transparenzregister.utils.enumy_types import (
 Base = declarative_base()
 
 
-class DistrictCourt(Base):  # type: ignore
+class DistrictCourt(Base):
     """DistrictCourt."""
 
     __tablename__ = "district_court"
@@ -27,7 +27,7 @@ class DistrictCourt(Base):  # type: ignore
     name = sa.Column(sa.String(100), nullable=False)
 
 
-class Company(Base):  # type: ignore
+class Company(Base):
     """Company."""
 
     __tablename__ = "company"
@@ -51,7 +51,7 @@ class Company(Base):  # type: ignore
     sector = sa.Column(sa.String(100), nullable=False)
 
 
-class Finance(Base):  # type: ignore
+class Finance(Base):
     """Finance."""
 
     __tablename__ = "finance"
@@ -72,7 +72,7 @@ class Finance(Base):  # type: ignore
     # company: Mapped[Company] = relationship(Company)
 
 
-class Sentiment(Base):  # type: ignore
+class Sentiment(Base):
     """Sentiment."""
 
     # noinspection SpellCheckingInspection
@@ -92,7 +92,7 @@ class Sentiment(Base):  # type: ignore
 
 
 # create person object
-class Person(Base):  # type: ignore
+class Person(Base):
     """Person."""
 
     __tablename__ = "person"
@@ -104,7 +104,7 @@ class Person(Base):  # type: ignore
 
 
 # create own relation type and person_relation object
-class PersonRelation(Base):  # type: ignore
+class PersonRelation(Base):
     """PersonRelation."""
 
     __tablename__ = "person_relation"
@@ -122,7 +122,7 @@ class PersonRelation(Base):  # type: ignore
 
 
 # create own relation type and company_relation object
-class CompanyRelation(Base):  # type: ignore
+class CompanyRelation(Base):
     """CompanyRelation."""
 
     __tablename__ = "company_relation"
diff --git a/tests/config/config_providers_test.py b/tests/config/config_providers_test.py
index 36af60c..ca3b95b 100644
--- a/tests/config/config_providers_test.py
+++ b/tests/config/config_providers_test.py
@@ -6,12 +6,12 @@ import pytest
 from aki_prj23_transparenzregister.config.config_providers import JsonFileConfigProvider
 
 
-def test_json_provider_init_fail():
+def test_json_provider_init_fail() -> None:
     with pytest.raises(FileNotFoundError):
         JsonFileConfigProvider("file-that-does-not-exist")
 
 
-def test_json_provider_init_no_json():
+def test_json_provider_init_no_json() -> None:
     with patch("os.path.isfile") as mock_isfile, patch(
         "builtins.open", mock_open(read_data="fhdaofhdoas")
     ):
@@ -20,7 +20,7 @@ def test_json_provider_init_no_json():
             JsonFileConfigProvider("non-json-file")
 
 
-def test_json_provider_init():
+def test_json_provider_init() -> None:
     data = {"hello": "world"}
     input_data = json.dumps(data)
     with patch("os.path.isfile") as mock_isfile:
@@ -30,7 +30,7 @@ def test_json_provider_init():
             assert provider.__data__ == data
 
 
-def test_json_provider_get_postgre():
+def test_json_provider_get_postgres() -> None:
     data = {
         "postgres": {
             "username": "user",
@@ -52,7 +52,7 @@ def test_json_provider_get_postgre():
             assert config.port == data["postgres"]["port"]
 
 
-def test_json_provider_get_mongo():
+def test_json_provider_get_mongo() -> None:
     data = {
         "mongo": {
             "username": "user",
diff --git a/tests/ui/company_stats_dash_test.py b/tests/ui/company_stats_dash_test.py
new file mode 100644
index 0000000..fa8bbcd
--- /dev/null
+++ b/tests/ui/company_stats_dash_test.py
@@ -0,0 +1,7 @@
+"""Test the compy stats dash file."""
+from aki_prj23_transparenzregister.ui import company_stats_dash
+
+
+def test_company_stats_dash_import() -> None:
+    """Since there is no single method to test the import is tested instead."""
+    assert company_stats_dash
diff --git a/tests/utils/mongo/company_mongo_service_test.py b/tests/utils/mongo/company_mongo_service_test.py
index 2c46ca3..5078cc2 100644
--- a/tests/utils/mongo/company_mongo_service_test.py
+++ b/tests/utils/mongo/company_mongo_service_test.py
@@ -10,7 +10,7 @@ from aki_prj23_transparenzregister.utils.mongo.company_mongo_service import (
 
 
 @pytest.fixture()
-def mock_mongo_connector(mocker) -> Mock:
+def mock_mongo_connector(mocker: Mock) -> Mock:
     """Mock MongoConnector class.
 
     Args:
@@ -37,7 +37,7 @@ def mock_collection() -> Mock:
     return Mock()
 
 
-def test_init(mock_mongo_connector, mock_collection):
+def test_init(mock_mongo_connector: Mock, mock_collection: Mock) -> None:
     """Test CompanyMongoService constructor.
 
     Args:
@@ -49,7 +49,7 @@ def test_init(mock_mongo_connector, mock_collection):
     assert service.collection == mock_collection
 
 
-def test_get_all(mock_mongo_connector, mock_collection):
+def test_get_all(mock_mongo_connector: Mock, mock_collection: Mock) -> None:
     """Test CompanyMongoService get_all method.
 
     Args:
@@ -63,7 +63,7 @@ def test_get_all(mock_mongo_connector, mock_collection):
     assert service.get_all() == mock_result
 
 
-def test_by_id_no_result(mock_mongo_connector, mock_collection):
+def test_by_id_no_result(mock_mongo_connector: Mock, mock_collection: Mock) -> None:
     """Test CompanyMongoService get_by_id with no result.
 
     Args:
@@ -73,10 +73,10 @@ def test_by_id_no_result(mock_mongo_connector, mock_collection):
     mock_mongo_connector.database = {"companies": mock_collection}
     service = CompanyMongoService(mock_mongo_connector)
     mock_collection.find.return_value = []
-    assert service.get_by_id("Does not exist") is None
+    assert service.get_by_id("Does not exist") is None  # type: ignore
 
 
-def test_by_id_result(mock_mongo_connector, mock_collection):
+def test_by_id_result(mock_mongo_connector: Mock, mock_collection: Mock) -> None:
     """Test CompanyMongoService get_by_id with result.
 
     Args:
@@ -87,10 +87,10 @@ def test_by_id_result(mock_mongo_connector, mock_collection):
     service = CompanyMongoService(mock_mongo_connector)
     mock_entry = {"id": "Does exist", "vaue": 42}
     mock_collection.find.return_value = [mock_entry]
-    assert service.get_by_id("Does exist") == mock_entry
+    assert service.get_by_id("Does exist") == mock_entry  # type: ignore
 
 
-def test_insert(mock_mongo_connector, mock_collection):
+def test_insert(mock_mongo_connector: Mock, mock_collection: Mock) -> None:
     """Test CompanyMongoService insert method.
 
     Args:
@@ -101,4 +101,4 @@ def test_insert(mock_mongo_connector, mock_collection):
     service = CompanyMongoService(mock_mongo_connector)
     mock_result = 42
     mock_collection.insert_one.return_value = mock_result
-    assert service.insert(Company(None, None, "", "", [])) == mock_result
+    assert service.insert(Company(None, None, "", "", [])) == mock_result  # type: ignore
diff --git a/tests/utils/mongo/mongo_test.py b/tests/utils/mongo/mongo_test.py
index 3bf1f5f..51a1abe 100644
--- a/tests/utils/mongo/mongo_test.py
+++ b/tests/utils/mongo/mongo_test.py
@@ -6,22 +6,22 @@ from aki_prj23_transparenzregister.utils.mongo.connector import (
 )
 
 
-def test_get_conn_string_no_credentials():
+def test_get_conn_string_no_credentials() -> None:
     conn = MongoConnection("localhost", "", 27017, None, None)
     assert conn.get_conn_string() == "mongodb://localhost:27017"
 
 
-def test_get_conn_string_no_port_but_credentials():
+def test_get_conn_string_no_port_but_credentials() -> None:
     conn = MongoConnection("localhost", "", None, "admin", "password")
     assert conn.get_conn_string() == "mongodb+srv://admin:password@localhost"
 
 
-def test_get_conn_simple():
+def test_get_conn_simple() -> None:
     conn = MongoConnection("localhost", "", None, None, None)
     assert conn.get_conn_string() == "mongodb+srv://localhost"
 
 
-def test_mongo_connector():
+def test_mongo_connector() -> None:
     with patch("pymongo.MongoClient") as mock_mongo_client:
         expected_result = 42
         mock_mongo_client.return_value = {"db": expected_result}
diff --git a/tests/utils/mongo/news_mongo_service_test.py b/tests/utils/mongo/news_mongo_service_test.py
index e7b222f..ddf1564 100644
--- a/tests/utils/mongo/news_mongo_service_test.py
+++ b/tests/utils/mongo/news_mongo_service_test.py
@@ -10,7 +10,7 @@ from aki_prj23_transparenzregister.utils.mongo.news_mongo_service import (
 
 
 @pytest.fixture()
-def mock_mongo_connector(mocker) -> Mock:
+def mock_mongo_connector(mocker: Mock) -> Mock:
     """Mock MongoConnector class.
 
     Args:
@@ -37,7 +37,7 @@ def mock_collection() -> Mock:
     return Mock()
 
 
-def test_init(mock_mongo_connector, mock_collection):
+def test_init(mock_mongo_connector: Mock, mock_collection: Mock) -> None:
     """Test CompanyMongoService constructor.
 
     Args:
@@ -49,7 +49,7 @@ def test_init(mock_mongo_connector, mock_collection):
     assert service.collection == mock_collection
 
 
-def test_get_all(mock_mongo_connector, mock_collection):
+def test_get_all(mock_mongo_connector: Mock, mock_collection: Mock) -> None:
     mock_mongo_connector.database = {"news": mock_collection}
     service = MongoNewsService(mock_mongo_connector)
 
@@ -57,7 +57,9 @@ def test_get_all(mock_mongo_connector, mock_collection):
     assert service.get_all() == []
 
 
-def test_get_by_id_with_result(mock_mongo_connector, mock_collection):
+def test_get_by_id_with_result(
+    mock_mongo_connector: Mock, mock_collection: Mock
+) -> None:
     mock_mongo_connector.database = {"news": mock_collection}
     service = MongoNewsService(mock_mongo_connector)
 
@@ -69,7 +71,7 @@ def test_get_by_id_with_result(mock_mongo_connector, mock_collection):
         assert service.get_by_id("foadh") == {}
 
 
-def test_get_by_id_no_result(mock_mongo_connector, mock_collection):
+def test_get_by_id_no_result(mock_mongo_connector: Mock, mock_collection: Mock) -> None:
     mock_mongo_connector.database = {"news": mock_collection}
     service = MongoNewsService(mock_mongo_connector)
 
@@ -77,7 +79,7 @@ def test_get_by_id_no_result(mock_mongo_connector, mock_collection):
     assert service.get_by_id("foadh") is None
 
 
-def test_insert(mock_mongo_connector, mock_collection):
+def test_insert(mock_mongo_connector: Mock, mock_collection: Mock) -> None:
     mock_mongo_connector.database = {"news": mock_collection}
     service = MongoNewsService(mock_mongo_connector)
 
@@ -86,17 +88,17 @@ def test_insert(mock_mongo_connector, mock_collection):
     ) as mock_in:
         mock_collection.insert_one.return_value = {}
         mock_in.return_value = {}
-        assert service.insert({}) == {}
+        assert service.insert({}) == {}  # type: ignore
 
 
-def test_transform_ingoing():
-    news = News("42", None, None, None, None)
+def test_transform_ingoing() -> None:
+    news = News("42", None, None, None, None)  # type: ignore
     result = MongoEntryTransformer.transform_ingoing(news)
     assert result["_id"] == "42"
     assert "id" not in result
 
 
-def test_transform_outgoing():
+def test_transform_outgoing() -> None:
     data = {
         "_id": "4711",
         "title": "Hello",
diff --git a/tests/utils/postgres/connector_test.py b/tests/utils/postgres/connector_test.py
index d1cbbf1..ec9aaf2 100644
--- a/tests/utils/postgres/connector_test.py
+++ b/tests/utils/postgres/connector_test.py
@@ -4,7 +4,7 @@ from aki_prj23_transparenzregister.config.config_template import PostgreConnecti
 from aki_prj23_transparenzregister.utils.postgres.connector import get_engine, init_db
 
 
-def test_get_engine():
+def test_get_engine() -> None:
     conn_args = PostgreConnectionString("", "", "", "", 42)
     with patch(
         "aki_prj23_transparenzregister.utils.postgres.connector.create_engine"
@@ -14,7 +14,7 @@ def test_get_engine():
         assert get_engine(conn_args) == result
 
 
-def test_init_db():
+def test_init_db() -> None:
     with patch(
         "aki_prj23_transparenzregister.utils.postgres.connector.get_engine"
     ) as mock_get_engine, patch(
diff --git a/tests/utils/postgres/entities_test.py b/tests/utils/postgres/entities_test.py
index bc2817a..bb67ffe 100644
--- a/tests/utils/postgres/entities_test.py
+++ b/tests/utils/postgres/entities_test.py
@@ -1,4 +1,4 @@
-def test_import():
+def test_import() -> None:
     from aki_prj23_transparenzregister.utils.postgres import entities
 
     assert entities is not None