diff --git a/szpitale-graph/src/main/java/com/developx/szpitale/load/GraphLoader.java b/szpitale-graph/src/main/java/com/developx/szpitale/load/GraphLoader.java
index bfca149..38a5df2 100644
--- a/szpitale-graph/src/main/java/com/developx/szpitale/load/GraphLoader.java
+++ b/szpitale-graph/src/main/java/com/developx/szpitale/load/GraphLoader.java
@@ -30,6 +30,11 @@ public class GraphLoader {
                 loadRoles(session, dataset.roles(), stats);
                 loadAffiliations(session, dataset.affiliations(), stats);
                 loadMandates(session, dataset.mandates(), stats);
+                loadOrganizations(session, dataset.organizations(), stats);
+                loadCompanies(session, dataset.companies(), stats);
+                loadPersonOrganizationLinks(session, dataset.personOrganizationLinks(), stats);
+                loadOrganizationLinks(session, dataset.organizationLinks(), stats);
+                loadPersonCompanyLinks(session, dataset.personCompanyLinks(), stats);
             }
         }
         return stats;
@@ -176,6 +181,130 @@ public class GraphLoader {
         }
     }
 
+    private void loadOrganizations(Session session, List<Organization> organizations, LoadStats stats) {
+        if (organizations.isEmpty()) return;
+
+        List<Map<String, Object>> batch = new ArrayList<>();
+        for (Organization o : organizations) {
+            batch.add(Map.of(
+                    "id", o.id(),
+                    "name", o.name(),
+                    "krs", o.krs(),
+                    "nip", o.nip(),
+                    "sourceUrls", o.sourceUrls()
+            ));
+        }
+
+        for (int i = 0; i < batch.size(); i += BATCH_SIZE) {
+            List<Map<String, Object>> subList = batch.subList(i, Math.min(i + BATCH_SIZE, batch.size()));
+            String cypher = "UNWIND $batch AS o " +
+                    "MERGE (org:Organization {id: o.id}) " +
+                    "SET org += {name: o.name, krs: o.krs, nip: o.nip, sourceUrls: o.sourceUrls}";
+            session.run(cypher, Map.of("batch", subList));
+            stats.addOrganizations(subList.size());
+        }
+    }
+
+    private void loadCompanies(Session session, List<Company> companies, LoadStats stats) {
+        if (companies.isEmpty()) return;
+
+        List<Map<String, Object>> batch = new ArrayList<>();
+        for (Company c : companies) {
+            batch.add(Map.of(
+                    "id", c.id(),
+                    "name", c.name(),
+                    "krs", c.krs(),
+                    "nip", c.nip(),
+                    "ceidgId", c.ceidgId(),
+                    "sourceUrls", c.sourceUrls()
+            ));
+        }
+
+        for (int i = 0; i < batch.size(); i += BATCH_SIZE) {
+            List<Map<String, Object>> subList = batch.subList(i, Math.min(i + BATCH_SIZE, batch.size()));
+            String cypher = "UNWIND $batch AS c " +
+                    "MERGE (comp:Company {id: c.id}) " +
+                    "SET comp += {name: c.name, krs: c.krs, nip: c.nip, ceidgId: c.ceidgId, sourceUrls: c.sourceUrls}";
+            session.run(cypher, Map.of("batch", subList));
+            stats.addCompanies(subList.size());
+        }
+    }
+
+    private void loadPersonOrganizationLinks(Session session, List<PersonOrganizationLink> links, LoadStats stats) {
+        if (links.isEmpty()) return;
+
+        List<Map<String, Object>> batch = new ArrayList<>();
+        for (PersonOrganizationLink l : links) {
+            batch.add(Map.of(
+                    "personId", l.personId(),
+                    "organizationId", l.organizationId(),
+                    "roleLabel", l.roleLabel(),
+                    "basis", l.basis().name(),
+                    "sourceUrls", l.sourceUrls()
+            ));
+        }
+
+        for (int i = 0; i < batch.size(); i += BATCH_SIZE) {
+            List<Map<String, Object>> subList = batch.subList(i, Math.min(i + BATCH_SIZE, batch.size()));
+            String cypher = "UNWIND $batch AS l " +
+                    "MATCH (p:Person {id: l.personId}), (org:Organization {id: l.organizationId}) " +
+                    "MERGE (p)-[m:CZLONEK_ORGANIZACJI]->(org) " +
+                    "SET m += {roleLabel: l.roleLabel, basis: l.basis, sourceUrls: l.sourceUrls}";
+            session.run(cypher, Map.of("batch", subList));
+            stats.addPersonOrganizationLinks(subList.size());
+        }
+    }
+
+    private void loadOrganizationLinks(Session session, List<OrganizationLink> links, LoadStats stats) {
+        if (links.isEmpty()) return;
+
+        List<Map<String, Object>> batch = new ArrayList<>();
+        for (OrganizationLink l : links) {
+            batch.add(Map.of(
+                    "fromId", l.fromOrganizationId(),
+                    "toId", l.toOrganizationId(),
+                    "basis", l.basis().name(),
+                    "note", l.note(),
+                    "sourceUrls", l.sourceUrls()
+            ));
+        }
+
+        for (int i = 0; i < batch.size(); i += BATCH_SIZE) {
+            List<Map<String, Object>> subList = batch.subList(i, Math.min(i + BATCH_SIZE, batch.size()));
+            String cypher = "UNWIND $batch AS l " +
+                    "MATCH (a:Organization {id: l.fromId}), (b:Organization {id: l.toId}) " +
+                    "MERGE (a)-[m:POWIAZANA_Z]->(b) " +
+                    "SET m += {basis: l.basis, note: l.note, sourceUrls: l.sourceUrls}";
+            session.run(cypher, Map.of("batch", subList));
+            stats.addOrganizationLinks(subList.size());
+        }
+    }
+
+    private void loadPersonCompanyLinks(Session session, List<PersonCompanyLink> links, LoadStats stats) {
+        if (links.isEmpty()) return;
+
+        List<Map<String, Object>> batch = new ArrayList<>();
+        for (PersonCompanyLink l : links) {
+            batch.add(Map.of(
+                    "personId", l.personId(),
+                    "companyId", l.companyId(),
+                    "roleLabel", l.roleLabel(),
+                    "basis", l.basis().name(),
+                    "sourceUrls", l.sourceUrls()
+            ));
+        }
+
+        for (int i = 0; i < batch.size(); i += BATCH_SIZE) {
+            List<Map<String, Object>> subList = batch.subList(i, Math.min(i + BATCH_SIZE, batch.size()));
+            String cypher = "UNWIND $batch AS l " +
+                    "MATCH (p:Person {id: l.personId}), (comp:Company {id: l.companyId}) " +
+                    "MERGE (p)-[m:POWIAZANY_Z_FIRMA]->(comp) " +
+                    "SET m += {roleLabel: l.roleLabel, basis: l.basis, sourceUrls: l.sourceUrls}";
+            session.run(cypher, Map.of("batch", subList));
+            stats.addPersonCompanyLinks(subList.size());
+        }
+    }
+
     private String roleTypeToRelName(Role r) {
         String organ = r.organ().name();
         String role = r.roleType().name();
@@ -196,6 +325,11 @@ public class GraphLoader {
         public int roleCount;
         public int affiliationCount;
         public int mandateCount;
+        public int organizationCount;
+        public int companyCount;
+        public int personOrganizationLinkCount;
+        public int organizationLinkCount;
+        public int personCompanyLinkCount;
         public final List<String> voivodeships = new ArrayList<>();
 
         public void addVoivodeship(String v) { voivodeships.add(v); }
@@ -204,12 +338,18 @@ public class GraphLoader {
         public void addRoles(int count) { roleCount += count; }
         public void addAffiliations(int count) { affiliationCount += count; }
         public void addMandates(int count) { mandateCount += count; }
+        public void addOrganizations(int count) { organizationCount += count; }
+        public void addCompanies(int count) { companyCount += count; }
+        public void addPersonOrganizationLinks(int count) { personOrganizationLinkCount += count; }
+        public void addOrganizationLinks(int count) { organizationLinkCount += count; }
+        public void addPersonCompanyLinks(int count) { personCompanyLinkCount += count; }
 
         @Override
         public String toString() {
             return String.format(
-                    "Load stats - voivodeships: %s, hospitals: %d, people: %d, roles: %d, affiliations: %d, mandates: %d",
-                    String.join(", ", voivodeships), hospitalCount, personCount, roleCount, affiliationCount, mandateCount
+                    "Load stats - voivodeships: %s, hospitals: %d, people: %d, roles: %d, affiliations: %d, mandates: %d, organizations: %d, companies: %d, personOrgLinks: %d, orgLinks: %d, personCompanyLinks: %d",
+                    String.join(", ", voivodeships), hospitalCount, personCount, roleCount, affiliationCount, mandateCount,
+                    organizationCount, companyCount, personOrganizationLinkCount, organizationLinkCount, personCompanyLinkCount
             );
         }
     }
diff --git a/szpitale-graph/src/main/java/com/developx/szpitale/load/GraphSchema.java b/szpitale-graph/src/main/java/com/developx/szpitale/load/GraphSchema.java
index a12f3e8..808a93b 100644
--- a/szpitale-graph/src/main/java/com/developx/szpitale/load/GraphSchema.java
+++ b/szpitale-graph/src/main/java/com/developx/szpitale/load/GraphSchema.java
@@ -21,6 +21,8 @@ public class GraphSchema {
             session.run("CREATE CONSTRAINT person_id IF NOT EXISTS FOR (p:Person) REQUIRE p.id IS UNIQUE");
             session.run("CREATE CONSTRAINT party_name IF NOT EXISTS FOR (x:Party) REQUIRE x.name IS UNIQUE");
             session.run("CREATE CONSTRAINT voiv_slug IF NOT EXISTS FOR (v:Voivodeship) REQUIRE v.slug IS UNIQUE");
+            session.run("CREATE CONSTRAINT org_id IF NOT EXISTS FOR (o:Organization) REQUIRE o.id IS UNIQUE");
+            session.run("CREATE CONSTRAINT company_id IF NOT EXISTS FOR (c:Company) REQUIRE c.id IS UNIQUE");
             session.run("CREATE INDEX person_name IF NOT EXISTS FOR (p:Person) ON (p.fullName)");
             session.run("CREATE INDEX govbody_name IF NOT EXISTS FOR (g:GovBody) ON (g.name)");
             log.info("Graph constraints and indexes created");
diff --git a/szpitale-graph/target/classes/com/developx/szpitale/load/GraphLoader$LoadStats.class b/szpitale-graph/target/classes/com/developx/szpitale/load/GraphLoader$LoadStats.class
index dbdcd31..3be5eea 100644
Binary files a/szpitale-graph/target/classes/com/developx/szpitale/load/GraphLoader$LoadStats.class and b/szpitale-graph/target/classes/com/developx/szpitale/load/GraphLoader$LoadStats.class differ
diff --git a/szpitale-graph/target/classes/com/developx/szpitale/load/GraphLoader.class b/szpitale-graph/target/classes/com/developx/szpitale/load/GraphLoader.class
index 106189f..6c1c972 100644
Binary files a/szpitale-graph/target/classes/com/developx/szpitale/load/GraphLoader.class and b/szpitale-graph/target/classes/com/developx/szpitale/load/GraphLoader.class differ
diff --git a/szpitale-graph/target/classes/com/developx/szpitale/load/GraphSchema.class b/szpitale-graph/target/classes/com/developx/szpitale/load/GraphSchema.class
index 6c2b0ea..b677b4a 100644
Binary files a/szpitale-graph/target/classes/com/developx/szpitale/load/GraphSchema.class and b/szpitale-graph/target/classes/com/developx/szpitale/load/GraphSchema.class differ