Bixel

TopK

Topk.io
Company Overview

As of October 20, 2026: TopK is a pure usage-based retrieval engine for AI teams that closed a $5.5M seed round in July 2025 and names Bedrock Knowledge Base and Gemini File Search as its direct competition.

The platform covers hybrid search, multi-tenancy, and reranking across 10 stated capabilities, with every cost metered: storage at $0.10/GiB-month, query memory at $0.20/GiB-month, and writes at $0.50/GiB. TopK holds SOC 2 Type I and four controls including encryption at rest, encryption in transit, and private networking, though no Type II is stated.

Backed by 49 dated facts
Drawn from 8 dimensions of the record, each dated and sourced.
open roles
2
Sep 2026
technologies
9
observed
dated changes
112
Sep 2026
The record, by dimensionevery dimension is its own page →
PricingBacked by 10 dated facts
Every value derives from a dated, sourced capture — open any fact for its source.
Usage-based
There are no tiers or committed plans: every dimension is metered, from $0.005/TiB scanned for query compute to $0.05/1M tokens for text embedding. A team with predictable, low query volume pays almost nothing; one with large in-memory indexes will feel the $20/GiB-month query memory line quickly.
Full pricing read →
Features
Hybrid search platform
Ten capabilities are stated, with hybrid search, multi-tenancy, and reranking called out explicitly. Multi-tenancy matters most for AI teams building products on top of TopK rather than using it internally.
Backed by 10 dated facts
Every value derives from a dated, sourced capture — open any fact for its source.Full read →
Security
Baseline security
SOC 2 Type I is confirmed, alongside encryption at rest, encryption in transit, and private networking. Type I covers design of controls, not operating effectiveness over time; buyers with Type II requirements will need to ask directly.
Backed by 5 dated facts
Every value derives from a dated, sourced capture — open any fact for its source.Full read →
Reliability
Operational
A public status page exists and currently shows operational. No historical uptime data or SLA terms are visible from the signals provided, so the operational claim cannot be independently verified beyond the current status.
Backed by 2 dated facts
Every value derives from a dated, sourced capture — open any fact for its source.Full read →
Hiring
2 open roles
Two open roles, both in engineering, with remote status not stated. A two-person hiring footprint on a fresh seed round suggests the team is still small and early in scaling headcount.
Backed by 3 dated facts
Every value derives from a dated, sourced capture — open any fact for its source.Full read →
Stack
Modern web stack
The live site shows AWS as infrastructure alongside Cloudflare, Datadog, and Next.js, plus five additional detected technologies. AWS as the infrastructure layer is consistent with the private networking control and relevant for buyers with AWS-centric procurement.
Backed by 10 dated facts
Every value derives from a dated, sourced capture — open any fact for its source.Full read →
Positioning
Retrieval Engine
TopK leads with "Frontier Retrieval Stack" and names Bedrock Knowledge Base and Gemini File Search directly. Naming managed cloud incumbents suggests it is pitching on flexibility and accuracy where those services are perceived as constrained.
Backed by 6 dated facts
Every value derives from a dated, sourced capture — open any fact for its source.Full read →
Funding
$5.5M raised
A $5.5M seed closed July 1, 2025, is the only round on record. That is enough runway to build and sell, but buyers committing to TopK as infrastructure should factor in that the company has not yet demonstrated a Series A.
Backed by 3 dated facts
Every value derives from a dated, sourced capture — open any fact for its source.Full read →
Change History112 dated events on the record
Positioning changed: Category
Positioning changed: Target Segment
Funding details changed: Round Seed Announced On
Feature added: Built In Embeddings
Feature added: BYOC
Feature added: Reranking
Feature added: Self Hosted
IdentityBixel ID · free forever
Bixel IDbxc_r5pxj15bx0pjbrandID in service · identity is free forever · permalink
Operated by

No registered company joined yet. Would resolve with: a registry identifier for the entity; a legal page on the site naming the registered company.

Registry identifiers

None on record.

Published identifiers
  • Crunchbase topk · inferred
  • GitHub topk-io · inferred
  • LinkedIn topkio · corroborated
  • X topk_io · corroborated
Get this record via API / MCPevery field dated and sourced
RESTopen tier
GET https://api.bixel.com/v1/companies/topk.io

{
  "data": {
    "company": {
      "name": "TopK",
      "domain": "topk.io",
      "categories": [
        "vector-databases"
      ]
    },
    "dimensions": {
      "security": {
        "facts": [
          {
            "key": "security.cert.soc2-type-i",
            "value": true,
            "provenance": "company_stated",
            "as_of": "2026-09-24",
            "source_url": "docs.topk.io"
          },
          {
            "key": "hiring.open_roles",
            "value": 2,
            "provenance": "company_stated",
            "as_of": "2026-09-24",
            "source_url": "www.topk.io/careers"
          },
          {
            "key": "stack.tech.aws",
            "value": true,
            "provenance": "observed",
            "as_of": "2026-09-24",
            "source_url": "trust.topk.io"
          }
        ]
      },
      "…": "…"
    }
  }
}
MCPfor agents
# any MCP client (Claude, agents)
const record = await bixel.get_company({ domain: "topk.io" })

# returns the whole record above,
# each value with its source_url + as_of,
# ready to reason over
Build on the company record. One key, REST + MCP, every signal dated and sourced back to the page it came from.
How Bixel reads this

Every read above is derived from public signals, each sourced and dated, and kept honest about provenance: what the company states on its own pages and job posts (pricing, security, careers, positioning, its backend stack) versus what Bixel independently detects (technologies, infrastructure). Where a stated claim is also detected we mark it verified; where we only have the claim, we say so. Bixel infers posture: how it monetizes, how mature it is, where it's heading. It does notclaim private financials it can't observe. Where signals are thin, the record says so.

Public record, read from companies' own pages and boards. Every fact dated and sourced; provenance (observed vs company stated) shown inline.