We may earn a commission if you buy through links on this page. It never changes a score or a ranking. How we make money
If you’re leaving Harmonic because its price and limits are hard to evaluate, start by deciding which job you need to replace: private-company research, prospecting, enrichment or GTM signals. The available pricing information lists no Harmonic starting price, and the product summary flags opaque pricing and limits. Grata is the closest fit here for private-company research; Apollo, Clay and the others shift the focus toward sales workflows. None is established by the available information as a like-for-like replacement for Harmonic’s startup coverage.
01Why people leave Harmonic
Pricing is hard to judge
The available pricing information lists no starting price for Harmonic, making it difficult to compare cost with alternatives.
Limits are unclear
Harmonic’s summary flags opaque limits, so buyers may struggle to estimate whether usage will fit their research needs.
Coverage may not be enough
Harmonic is positioned for startup sourcing and signals, but the available information does not specify its coverage or limits.
02The alternatives, ranked by fit
- M&A company research
GrataGrataGrata is the closest fit if you use Harmonic to research private companies and need deal context in one workspace. It is aimed at M&A teams and investors, rather than being a general prospecting bundle. The listed starting price is not published, so ask for pricing and check whether its company coverage fits your sourcing needs before switching.
Trade-off: Pricing is unpublished, and it is not described as a turnkey sourcing solution.
6.4/10from
Custom - Prospecting and outreach
ApolloApolloChoose Apollo if the work you need to replace is prospecting and outreach, not startup discovery alone. Its product summary says it combines those workflows with AI agents, giving sales teams a more consolidated option. The listed starting price is $49 with a free plan; check the monthly credit limits and data quality before moving over.
Trade-off: Credit limits and data quality need scrutiny; startup coverage is not specified.
6.8/10from
$49/mofree plan - Enrichment workflows
ClayClayClay suits teams that need multi-source enrichment and automated GTM research workflows more than a standalone startup database. It may fit when Harmonic’s signals are only one part of a broader prospect-research process. The listed starting price is $167 with a free plan, but review its usage limits and expected costs before migrating workflows.
Trade-off: Price and usage limits need close review; startup coverage is not specified.
7.2/10from
$167/mofree plan - Named-account research
D&B HooversD&B HooversD&B Hoovers is worth considering if your work is researching named accounts and checking business identities, rather than sourcing early-stage companies. The listed starting price is $44.08. It is a narrower fit for teams that need verified business identities, and buyers may need to request Enterprise pricing for their requirements.
Trade-off: Check credit needs and custom Enterprise costs; early-stage coverage is not specified.
5.5/10from
$44.08/mo - Inbound intent signals
WarmlyWarmlyWarmly is a possible switch if your priority is GTM signals and outreach around inbound accounts, rather than investor sourcing. Its summary describes visitor identification, GTM automation and account-level intent signals. The listed starting price is $833.33, so the cost only makes sense if those workflows match your needs and you are confident in the match data.
Trade-off: Its starting price is high, and match-data confidence matters.
6.2/10from
$833.33/mo - Sales-play workflows
KoalaKoalaKoala may fit if you are using Harmonic as part of a sales workflow and want sales-play tools, signal-led outreach or AI agents. Its summary points to small teams testing signal-led outreach and RevOps teams configuring agents. The listed starting price is $200 with a free plan; check credit needs and seat costs before scaling.
Trade-off: Credit needs and seat costs can affect the price as you scale.
7.0/10from
$200/mofree plan
03Side by side
| Tool | Score | From | Free plan | Best for |
|---|---|---|---|---|
 Harmonic Harmonic (current) | 6.3 | Custom | No | Investors sourcing early-stage companies |
| Grata Grata | 6.4 | Custom | No | M&A teams researching private companies |
| Apollo Apollo | 6.8 | $49/mo | Yes | Teams consolidating prospecting and outreach |
| Clay Clay | 7.2 | $167/mo | Yes | Teams running multi-source enrichment |
| D&B Hoovers D&B Hoovers | 5.5 | $44.08/mo | No | Teams researching named accounts |
| Warmly Warmly | 6.2 | $833.33/mo | No | B2B teams with high inbound volume |
| Koala Koala | 7.0 | $200/mo | Yes | Teams consolidating sales-play tools |
Questions people ask
How much does Harmonic cost?
The available pricing information lists Harmonic’s starting price as not available. Its product summary also flags opaque pricing and limits, so request current pricing and usage details directly before comparing it with alternatives.
Which Harmonic alternative is best for investor research?
Grata is the closest match in this list for M&A teams and investors researching private companies and deal context. Its starting price is not published, and the available information does not establish that its coverage matches Harmonic’s early-stage company sourcing.
Can these tools replace Harmonic’s startup coverage?
The available descriptions do not confirm that any of these alternatives provide the same startup coverage as Harmonic. Grata focuses on private-company research; Apollo and Clay focus on sales and research workflows, while Warmly focuses on visitor identification and GTM signals. Compare coverage and limits directly before switching.